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Tunable Laser Sources

What is a Tunable Laser ?

5.1 What is a Tunable Laser ?

A tunable laser is a laser source for which the wavelength can be
varied through a specified range. The Hewlett-Packard Tunable
Laser modules also allow you to set the output power, and to choose
between continuous wave or modulated power.

5.2 How to Set the Power

The laser output can be either:

•

a continuous wave (CW) signal, fixed amplitude signal, see
“How to Set the Output Power of a CW Signal” on page 98,

•

a modulated signal, see “How to Modulate a Signal” on
page 116, or

•

a signal with increased linewidth (coherence control), see
“How to Increase Linewidth” on page 122.

If [M

OD

S

RC

] is <O

FF

>, a continuous wave signal is the chosen

optical output. A continuous wave signal is the default.

If any other [M

OD

S

RC

] source is chosen, the chosen source

modulates the signal. For possible modulation sources, see “How to
Modulate a Signal” on page 116.

A t t e n u a t o r

If your tunable laser has an in-built optical attenuator, there are two power
modes for the fixed-amplitude, the modulated, and the increased-linewidth
signals. You can either:

•

specify the output power (<A

UTOMATIC

> Attenuation Mode), the

instrument automatically sets the current through the laser diode and the
attenuation to output the power you specify, or

•

specify the output power and the attenuation (<M

ANUAL

A

TT

.> Mode)

The two modes are separate, the values set in in one mode do not affect
values set in the other.

Содержание 8163A Series

Страница 1: ...HP 8163A Lightwave Multimeter HP 8164A Lightwave Measurement System User s Guide ...

Страница 2: ... for products returned to HP from another country HP warrants that its software and firmware designated by HP for use with an instrument will exe cute its programming instruc tions when properly installed on that instrument HP does not warrant that the operation of the instrument software or firmware will be uninterrupted or error free Limitation of Warranty The foregoing warranty shall not apply ...

Страница 3: ...HP 8163A Lightwave Multimeter HP 8164A Lightwave Measurement System User s Guide ...

Страница 4: ...ctions You must follow these to ensure safe operation and to maintain the instrument in safe condition Some HP 8164A circuits are powered whenever the instrument is connected to the AC power source To disconnect from the line power disconnect the power cord either at the rear power inlet or at the AC line power source receptacle One of these must always be accessible If the instrument is in a cabi...

Страница 5: ...inet The type of power cable shipped with each instrument depends on the country of destination Please refer to the figure below for the part numbers of available power cables WARNING To avoid the possibility of injury or death you must observe the following precautions before switching on the instrument If this instrument is to be energized via an autotransformer for voltage reduction ensure that...

Страница 6: ...ou are connecting a new plug it should meet the local safety requirements and include the following features Adequate load carrying capacity see table of specifications Ground connection Cable clamp Operating Environment WARNING The HP 8163A Lightwave Multimeter HP 8164A Lightwave Measurement System is not designed for outdoor use To prevent potential fire or shock hazard do not expose the instrum...

Страница 7: ...oided Adjustments described in the manual are performed with power supplied to the instrument while protective covers are removed Be aware that energy at many points may if contacted result in personal injury Any adjustments maintenance and repair of the opened instrument under voltage should be avoided as much as possible and when unavoidable should be carried out only by a skilled person who is ...

Страница 8: ...lls attention to a procedure practice or the like which if not correctly performed or adhered to could result in injury or loss of life Do not proceed beyond a WARNING sign until the indicated conditions are fully understood and met CAUTION The CAUTION sign denotes a hazard It calls attention to an operating procedure practice or the like which if not correctly performed or adhered to could result...

Страница 9: ...0 10 USA IIIb IIIb IIIb IIIb Permissible Output Power CW 20 mW 20 mW 20 mW 20 mW Beam Diameter 9 µm 9 µm 9 µm 9 µm Numerical Aperture 0 1 0 1 0 1 0 1 Wavelength 1200 1670 nm 1200 1670 nm 1200 1670 nm 1200 1670 nm Laser Class According to IEC 825 1 Non USA EN 60825 1 Europe 3A 3A 3A 3A Permissible Output Power CW 20 mW 20 mW 20 mW 20 mW Beam Diameter 9 µm 9 µm 9 µm 9 µm Numerical Aperture 0 1 0 1 0...

Страница 10: ...10 Safety Summary NOTE USA All Tunable Laser Source Modules HP 81640A 80A 82A 89A These laser safety warning labels are fixed on the outside of the HP 8164A Lightwave Measurement System before shipment ...

Страница 11: ... the instrument You MUST return instruments with malfunctioning laser boxes to an HP Service Center for repair and calibration The laser module has a built in safety circuitry which will disable the optical output in the case of a fault condition Non USA All Tunable Laser Source Modules HP 81640A 80A 82A 89A These laser safety warning labels are fixed on the outside of the HP 8164A Lightwave Measu...

Страница 12: ...e Laser Source Modules and Laser Source Modules have optical output connectors The laser is enabled by pressing the gray button beside the optical output connector on the front panel of the module The laser is enabled when the green LED on the front panel of the instrument is lit WARNING Under no circumstances look into the end of an optical cable attached to the optical output when the device is ...

Страница 13: ...13 Safety Summary ...

Страница 14: ...ting information of a non operational nature this contains installation information accessories specifications function tests and cleaning procedures Appendixes A to E Conventions used in this manual Hardkeys are indicated by small capitals for example CONFIG or CHANNEL Softkeys are indicated by normal text enclosed in square brackets for example Zoom or Cancel Parameters are indicated by small ca...

Страница 15: ...e Measurement System 28 1 3 A Description of the User Interface 30 Password 31 If You Forget Your Password 31 User Interface Features 32 Introducing Softkeys 32 Introducing Hardkeys 32 Special Module States 32 Slot and Channel Numbers 32 How to Navigate Modify the Display 33 Overview Screen 33 How to Use the Cursor Key 34 How to Use the Numerical Keypad 35 How to Use the Modify Knob 35 How to Chan...

Страница 16: ...Make a Mistake 45 If the Parameter Changes to Different Value 45 1 5 A Sample Session 46 How to Measure the Power of a Modulated Signal 46 2 Additional Features 2 1 Using the System Utilities 51 How to Set the Backlight Contrast 52 To Set the Contrast 52 How to Set the HP IB Address 53 How to Lock Unlock the Instrument 54 How to Change the Password 56 If You Forget Your Password 56 How to Set the ...

Страница 17: ...eference Value to the Current Power Value 68 How to Reference Another Power Measurement Channel 68 How to Set the Wavelength 70 How to Remove Electrical Offsets 70 How to Choose the Range Mode 73 How to Set the Range 74 Upper Power Limit and Resolution 80 How to Set the Averaging Time 80 How to Choose the MinMax Mode 81 How to Turn Off MinMax Mode 84 How to Hold the Screen 85 4 Laser Sources 4 1 H...

Страница 18: ... 98 How to Set the Optical Output 98 How to Set the Optical Output 101 How to Enable the Optical Output 101 How to Set Power and Attenuation 102 What is Excessive Power 104 The Analog Output 105 How to Set the BNC Output Line Mode as an Analog Output 106 5 3 How to Set the Wavelength 106 Wavelength Range 106 How to Set the Wavelength Directly 107 How to Set a Relative Wavelength 107 How to Change ...

Страница 19: ...Power of a Modulated Signal 117 How to Set the Frequency of a Modulated Signal 117 How to Set the Modulation Mode 117 How to Use External Modulation 118 External Digital Modulation 118 External Analog Modulation 119 Wavelength Locking 120 External Digital Modulation using Input Trigger Connector 121 How to Increase Linewidth 122 How to Set the Output Power of a Modulated Signal 123 How to Configur...

Страница 20: ...37 Changing the Fuse 138 A 4 Operating and Storage Environment 138 Temperature 139 Humidity 139 Storage and Shipment 139 Instrument Cooling 139 Operating Position 140 Storage Position 141 Carrying the Instrument 142 A 5 Using Modules 143 How to Fit and Remove Modules 143 How to Remove a Front Loadable Module 144 How to Fit a Front Loadable Module 145 How to Remove a Back Loadable Module 146 How to...

Страница 21: ...4 Connector 154 A 8 HP IB Logic Levels 155 A 9 Claims and Repackaging 156 Return Shipments to HP 156 Hewlett Packard Sales and Service Offices 157 United States 157 Canada 157 Europe 157 Japan 157 Latin America 158 Australia New Zealand 158 Asia Pacific 158 B Accessories B 1 Instrument and Options HP 8163A 161 Modules 161 User s Guides 161 B 2 Instrument and Options HP 8164A 162 Modules 162 HP 816...

Страница 22: ...8153A Lightwave Multimeter Modules 164 B 4 HP IB Cables and Adapters 166 C Specifications C 1 HP 8163A Specifications 169 C 2 HP 8164A Specifications 170 C 3 Declaration of Conformity 172 HP 8163A Lightwave Multimeter 172 Supplementary Information 172 HP 8164A Lightwave Measurement System 173 Supplementary Information 174 D Performance Tests Equipment Required 177 Test Record 177 Test Failure 178 ...

Страница 23: ... Module Interaction Test 182 Test of the Tunable Laser Module Channel Slot 0 183 HP IB Interface Test Optional 184 D 2 Test Record 185 E Cleaning Procedures E 1 Cleaning Materials 195 E 2 Cleaning Instrument Housing 195 E 3 Cleaning Fiber Panel Connectors 196 E 4 Cleaning Connector Interfaces 196 E 5 Cleaning Connector Bushings 197 E 6 Cleaning Detector Windows 197 E 7 Cleaning Lens Adapters 197 E...

Страница 24: ...to Get a Firmware Update 201 Download Firmware Update from Internet 201 Firmware Update Request Card 201 How to Update Firmware 203 How to Update Firmware from the Internet 203 How to Update Firmware from CD ROM 203 How to Update Firmware from Floppy Disk 203 ...

Страница 25: ...1 1 Getting Started ...

Страница 26: ...ntroduces the features of the HP 8163A Lightwave Multimeter and the HP 8164A Lightwave Measurement System Here you will find a quick description of the instrument how to use the user interface and how to perform a simple sample session ...

Страница 27: ...You customize the instrument using plug in modules and changeable fiber connector interfaces You can use this instrument as a tunable laser source and also to take associated measurements 1 1 The HP 8163A Lightwave Multimeter The HP 8163A Lightwave Multimeter is a high performance optical multimeter for the characterization and evaluation of optical components It s modular format makes it flexible...

Страница 28: ...ors fixed wavelength Laser Sources and Interface Modules for Optical Heads The front loadable module slots support all modules designed for the HP 8153A Lightwave Multimeter except the HP 81534A Return Loss Module which may be supported by later firmware releases 1 2 The HP 8164A Lightwave Measurement System The HP 8164A Lightwave Measurement System mainframe has one large and four slim module slo...

Страница 29: ...ble modules of any combination of the following types HP 81689A Tunable Laser Power Sensors fixed wavelength Laser Sources and Interface Modules for Optical Heads The front loadable module slots support all modules designed for the HP 8153A Lightwave Multimeter except the HP 81534A Return Loss Module which may be supported by later firmware releases ...

Страница 30: ...163A respectively and the names used in this manual to describe the groups of keys The HP 8163A does not provide the following two features of the HP 8164A s user interface the Modify Knob and the Numeric Keypad Figure 1 3 The HP 8164A Lightwave Measurement System User Interface Power Key Hardkeys Softkeys Keypad Display Key Key Modify Knob Cursor Key Enter Channel Numeric ...

Страница 31: ...Laser modules you must enter the password to unlock the instrument NOTE The default password is 1234 If You Forget Your Password If you forget your password contact your nearest Hewlett Packard Sales Service Office Figure 1 4 The HP 8163A Lightwave Multimeter User Interface Power Key Display Cursor Key Enter Channel Hardkeys Key Key Softkeys ...

Страница 32: ...channel number You can use slot and channel numbers to identify each channel in the overview screen with a number at the side of the screen to identify each channel in the Details screen with a tab at the top of the screen and to identify the channel when referencing the power measured by another channel see How to Reference Another Power Measurement Channel on page 68 and to identify a channel wh...

Страница 33: ... is numbered zero NOTE The channel number of single channel modules is always one How to Navigate Modify the Display Overview Screen Figure 1 6 shows the overview screen this screen is shown immediately after start up It shows the most important parameters of all installed modules Figure 1 5 The HP 8163A s Overview Screen ...

Страница 34: ...arted A Description of the User Interface How to Use the Cursor Key You can move the highlighted marker between parameters using the Cursor hardkey Figure 1 6 The HP 8164A s Overview Screen Figure 1 7 The Cursor Key ...

Страница 35: ...erical Keypad to change the value of a parameter See How to Change the Value of a Parameter on page 41 How to Use the Modify Knob NOTE The Modify Knob is only available if you use the HP 8164A You can use the Modify Knob to navigate around the display When you turn the Modify Knob through one click one action is performed Turning the Modify Knob clockwise moves the highlighted marker right and the...

Страница 36: ...he overview screen or the details screen is displayed How to Access the Details Screen You can access the parameters of a module that are not shown on the overview screen by pressing CHANNEL to select the channel and pressing the Details softkey You should see the Details screen as shown in Figure 1 9 or Figure 1 10 Figure 1 9 The HP 8163A s Details Screen for a Power Sensor Channel ...

Страница 37: ...37 Getting Started A Description of the User Interface To return to the overview screen press the Overview softkey Figure 1 10 The HP 8164A s Details Screen for a Tunable Laser Channel ...

Страница 38: ...How to Access the Menu Press the Menu softkey to access all the parameters of a module that can be changed Figure 1 11 and Figure 1 12 show the type of menu you should see for a Power Sensor channel Figure 1 11 The HP 8163A s Menu for a Power Sensor Channel ...

Страница 39: ...em Configuration Press the Config softkey to access all the system configuration parameters that can be changed Figure 1 13 and Figure 1 14 show the menu you should see See Chapter 2 Additional Features for more details Figure 1 12 The HP 8164A s Menu for a Power Sensor Channel ...

Страница 40: ...40 Getting Started A Description of the User Interface Figure 1 13 The HP 8163A System Configuration Menu ...

Страница 41: ...f the various ways of changing the value of parameters Examples in which particular parameter values are changed are given with the parameter descriptions Parameters can be either continuous you may choose any value within a given range or discrete you may choose a value from a menu Figure 1 14 The HP 8164A System Configuration Menu ...

Страница 42: ... 8164A How to Accept the New Value of a Parameter When you have changed the value of a parameter to accept this change press the ENTER hardkey press the OK softkey or press the Modify Knob if you are using the HP 8164A These keys all perform the same purpose All references to pressing ENTER throughout this User s Guide refer to one of these three actions How to Make a Big Change to a Continuous Pa...

Страница 43: ...g the HP 8164A Move to the parameter and then 1 Press Edit The first digit before the decimal point will be highlighted first as shown in Figure 1 15 2 If you want to select another digit to edit use the left or right cursor key 3 Enter the new value for the digit by using the keypad the up and down cursors or turning the modify knob 4 Repeat steps 2 and 3 to continue editing the value Figure 1 15...

Страница 44: ...s the right cursor once to move the cursor one digit right 5 Press the up cursor five times to change the value of the digit to five Press ENTER to end the editing How to Change a Discrete Parameter For discrete parameters you may choose a particular values within a given range For a Power Sensor module 1 Move to the Power Sensor channel and press the Details softkey 2 Move to the AVGTIME paramete...

Страница 45: ...ou are editing a parameter you can cancel the editing and retain the previous value for the parameter by pressing the Cancel softkey If the Parameter Changes to Different Value If you press ENTER or the OK softkey and the parameter changes to a different value then you tried to enter a value outside the calibrated range The new value is the nearest valid value to the value you entered Figure 1 16 ...

Страница 46: ... to Measure the Power of a Modulated Signal We want to measure the power of a 1540 nm signal modulated by a 100 kHz square wave at 500 µW 1 Make sure that all your connectors and connector interfaces are clean 2 Make sure that the Optical Output of the Laser Source is not active 3 Connect the output of the Laser Source to the input of the Power Sensor module as shown in Figure 1 17 You must connec...

Страница 47: ...rement averaging time TAVG and press ENTER b Move to 1 s using the cursor key and press ENTER 7 For the Power Sensor module make sure that Watts are the selected Power Unit and that the instrument is in automatic ranging mode To change these settings a Move to the power parameter P and press the Power Unit softkey b Move to W using the cursor key and press ENTER c Move to the RANGE MODE parameter ...

Страница 48: ... press ENTER d Enter 500 000 e Change units to µW if necessary using the Unit or Unit softkey f Press ENTER 10 How to set the modulation frequency for the Tunable Laser module a Select the FREQUENCY parameter and press ENTER b Change units to kHz if necessary using the Unit or Unit softkey c Enter 100 000 and press ENTER 11 For the Tunable Laser module press the button beside the Optical Output Th...

Страница 49: ...2 2 Additional Features ...

Страница 50: ...his chapter introduces addditional features of the HP 8163A Lightwave Multimeter and the HP 8164A Lightwave Measurement System Here you will find out how to set the configuration settings and how to connect an external monitor ...

Страница 51: ...the HP 8163A Lightwave Measurement System and the HP 8164A Lightwave Measurement System 2 1 Using the System Utilities Press the CONFIG hardkey to access configuration information for your mainframe You see the screens in Figure 2 1 and Figure 2 2 Figure 2 1 The HP 8163A System Configuration Menu ...

Страница 52: ...by pressing ENTER or the OK softkey How to Set the Backlight Contrast TheContrast menu option allows you to set the appearance of the screen NOTE The Contrast menu option is supported by the HP 8163A but not the HP 8164A To Set the Contrast To change the contrast level of the HP 8163A s screen Figure 2 2 The HP 8164A System Configuration Menu ...

Страница 53: ...e a box displaying the current setting 3 Enter an integer value between zero and one hundred in this box and press ENTER How to Set the HP IB Address NOTE The default HP IB address is 20 To set the HP IB address 1 Press the CONFIG hardkey 2 Move to the HP IB ADDRESS menu option and press ENTER Figure 2 3 Entering a Contrast Value ...

Страница 54: ...eger value between 0 and 30 into this box and press Enter The address is set to this value How to Lock Unlock the Instrument To unlock the instrument 1 Press the CONFIG hardkey 2 Move to the UNLOCK menu option and press ENTER You see a box requesting you to enter the password Figure 2 4 Entering a HP IB Address ...

Страница 55: ...g the softkeys or the numerical keypad Press ENTER and the instrument unlocks NOTE The default password is 1234 To lock the instrument perform the steps above but in step 2 move to the LOCK menu option in place of the UNLOCK menu option Figure 2 5 Unlocking the Instrument ...

Страница 56: ...kard Sales Service Office How to Set the Trigger Configuration The trigger level at the external trigger connectors is by default active high this means when a trigger rises above the high TTL level a trigger is accepted You can select three modes of triggering from the trigger configuration menu NONE which you should choose if you do not want to use triggering DEFAULT which you should choose if y...

Страница 57: ...modes 3 Move to your chosen triggering mode and press ENTER How to Get Information About Modules To get information about modules 1 Press the CONFIG hardkey 2 Move to the ABOUT MODULES menu option and press ENTER You see a box displaying information about the installed modules see Figure 2 7 The part number and firmware revision of each installed module is listed Figure 2 6 Changing the Triggering...

Страница 58: ...rame To get information about the mainframe 1 Press the CONFIG hardkey 2 Move to the ABOUT MAINFRAME menu option and press ENTER You see a box displaying information about the installed modules see Figure 2 8 The part number development team and firmware revision of the mainframe are listed Figure 2 7 Viewing Information About Modules ...

Страница 59: ...w to Connect an External Monitor You can connect a standard VGA monitor to the HP 8164A Lightwave Measurement System This is a useful feature for making presentations or for training courses NOTE You cannot connect a monitor to the HP 8163A Lightwave Multimeter Figure 2 8 Viewing Information About the Mainframe ...

Страница 60: ...tor Tighten the thumbscrews on the plug Connect the video cable it has a 15 pin plug to the video outlet on the back of the Lightwave Measurement System Tighten the thumbscrews on the plug Connect the power cord to the display Plug the power cord into the power outlet NOTE Refer to the user s guide that came with your monitor if necessary to locate your monitor s output and input ports Figure 2 9 ...

Страница 61: ...3 3 Power Measurement ...

Страница 62: ...tical power from the user interface of the HP 8163A Lightwave Multimeter and the HP 8164A Lightwave Measurement System You may measure power using a Power Meter that is a Power Sensor module or an Optical Head in conjunction with an Optical Head Interface module ...

Страница 63: ...asurement value In MinMax mode this parameter changes to P the difference between minimum and maximum power see page 81 How to Set the Number of Digits You can set the number of digits that are used in power measurement These are the number of digits after the decimal point To change the number of digits to two 1 Move to the Power Meter channel and press the Menu softkey 2 Move to NUMBER OF DIGITS...

Страница 64: ...ower Unit softkey allows you to select either W dB or dBm as the units in which power is displayed The Power Unit softkey is visible when you move to the P or Ref parameters alternatively the Power Unit can be changed by using the Power Meter menu What are the Power Units Watts W are the SI unit for power measurement Figure 3 1 The Number of Digits Menu ...

Страница 65: ...ive to 1 mW it is an absolute power measurement By selecting dB the following calculation is made Where PdB is the power value displayed in dB Pinput is the input signal level in Watts and Pref is the chosen reference power value in Watts Power in units of dB is measured relative to a particular reference power value You must select this reference value To set the power unit to dBm 1 Move to the P...

Страница 66: ...tion offset that you can enter to compensate for external optical circuitry for example the HP 81022FF Integrating Sphere or a 3 dB coupler The calibration offset CAL is automatically subtracted from the input signal Pmeasured dBm Pinput dBm CAL dB Where Pmeasured is the adjusted value of the signal read in dBm Figure 3 2 Selecting the Power Unit ...

Страница 67: ...el Setting or changing the reference only affects results that are displayed in dB The reference level is displayed in units of dBm or Watts Depending on which is selected the following equations are used to calculate the power level in dB Pdisplay dB Pmeasured dBm REF dBm or Where Pdisplay is the displayed relative power Pmeasured is the absolute power level see How to Set the Calibration Offset ...

Страница 68: ... the Dsp Ref softkey takes the input power level and stores it as the reference Setting the reference only affects results displayed in dB When you press the Dsp Ref softkey the absolute power level the power value in dBm or Watts is stored as the reference that is REF Pmeasured Where REF is the reference and Pmeasured is the absolute power level see How to Set the Calibration Offset on page 66 Th...

Страница 69: ...ence using the cursor key and press Enter For example in Figure 3 3 you could choose 3 1 for channel 3 1 Refer to Slot and Channel Numbers on page 32 for information on channel numbers To return to setting a constant reference level 1 Move to the Power Meter channel and press the Details softkey 2 Move to the REF MODE parameter and press ENTER 3 Move to the VALUE menu option and press ENTER Figure...

Страница 70: ... power is input If electrical offsets are not removed they affect the accuracy of power measurement NOTE The environmental conditions and the temperature of the instrument affect electrical offset For the best results you must Allow the instrument time to acclimatize around 24 hours Allow the instrument time to warm up around 20 minutes Make sure that the optical input is not receiving any light I...

Страница 71: ...ption to zero the current power measurement channel or the ZERO ALL option to zero all power measurement channels You will see the screen shown in Figure 3 5 this appears for around 30 seconds while zeroing is performed Figure 3 4 Module Channels that are Settling ...

Страница 72: ... received light The most common reason for zeroing to fail is if a source is connected to the Power Meter s input connector the fiber connected to the Power Meter s input connector is collecting light or the Power Meter receives ambient light because the input connector is uncovered Press ENTER and start again at step 1 Figure 3 5 Zeroing Screen ...

Страница 73: ...de You can choose either of two ranging modes from the Range mode menu Auto the auto ranging mode ensures that the result has a displayed value between 9 and 100 of full scale The default state is for automatic ranging to be enabled Manual which allows you to set a user defined range Figure 3 6 Zeroing Fails if the Power Meter Receives Input Light ...

Страница 74: ...igure 3 7 in automatic ranging mode If you choose MANUAL from the Range mode menu you must choose a range setting from the Range menu To choose a range setting follow the following steps 1 Setup the instrument 2 Move to the Power Meter channel and press the Details softkey 3 Move to the P parameter and press the Power Unit softkey You will see the menu in Figure 3 2 Figure 3 7 Auto Range Mode ...

Страница 75: ...e Power Meter channel and press the Details softkey 10 Move to the RANGE MODE parameter and press ENTER 11 Move to MANUAL by using the cursor key and press ENTER 12 Move to the RANGE parameter and press ENTER 13 Move to next highest power value relative to the power value determined in Step 9 by using the cursor key and press ENTER NOTE If 12 dBm is the highest power value measured in Step 9 then ...

Страница 76: ...76 Power Measurement How to Measure Power Figure 3 8 Manual Range Mode Within Range ...

Страница 77: ...ing it is impossible for power to be displayed The power value 1 dBm as shown in Figure 3 9 is shown This means that the measured power is greater than the Upper Power Limit You must decrease the RANGE value See Table 3 1 on page 80 for more details Figure 3 9 Out of Range Power Greater Than Upper Power Limit ...

Страница 78: ... it is impossible for power to be displayed The power value 1 dBm as shown in Figure 3 10 is shown This means that the measured power is greater than the resolution at this RANGE value You must increase the RANGE value See Table 3 1 on page 80 for more details Figure 3 10 Out of Range Power Less Than Resolution ...

Страница 79: ...w to Measure Power Figure 3 11 shows the possible range values you can choose These values range from 10 dBm upper power limit of 13 dBm to 70 dBm upper power limit of 67 dBm in 10 dBm increments Figure 3 11 Range Value Menu ...

Страница 80: ...raging times also decrease sensitivity For averaging times of 1 second or less a new measurement is shown at the end of each averaging time This is drawn in Figure 3 1 A new measurement is shown on the display at each x RANGE Upper Power Limit Resolution 10 dBm 19 999 mW 13 000 dBm 0 001 mW 30 000 dBm 0 dBm 1 9999 mW 3 000 dBm 0 1 µW 40 000 dBm 10 dBm 199 99 µW 7 000 dBm 0 01 µW 50 000 dBm 20 dBm ...

Страница 81: ...tic ranging Pold is reset and the averaging starts again This is why the display update seems faster in automatic ranging To set the averaging time to 1 second 1 Move to the Power Meter channel and press the Details softkey 2 Move to the AVGTIME parameter and press ENTER 3 Move to 1 s by using the cursor key and press ENTER How to Choose the MinMax Mode MinMax mode measures the incoming power and ...

Страница 82: ...on while sweeping the polarization of the source applied to the component WINDOW mode which compares each new measured value with the maximum and minimum values of each of the previous N samples When a new measurement is taken it is added to a buffer containing the previous N samples and the oldest measurement is deleted REFRESH mode which adds each new measurement to a buffer The minimum and maxi...

Страница 83: ...MINMAX MODE parameter and press ENTER 3 Move to REFRESH by using the cursor key and press ENTER The screen in Figure 3 3 appears Figure 3 2 The Window and Refresh Modes Window Reset N Samples N Samples Time for display to update Time for display to update The length of the lines displayed represents the size of the buffer at the time of update Mode Mode ...

Страница 84: ... press ENTER How to Turn Off MinMax Mode To turn off MinMax mode and return to continuous power measurement 1 Move to the Power Meter channel and press the Details softkey 2 Move to the MINMAX MODE parameter and press ENTER 3 Move to OFF by using the cursor key and press ENTER Figure 3 3 MinMax Mode Screen ...

Страница 85: ...en Pressing the Hold Cnt softkey allows you to hold the screen so that no new measurements are displayed Hold is displayed as shown in Figure 3 4 for the overview screen and Figure 3 5 for the details screen Figure 3 4 Power Module Channel is Held Overview Screen ...

Страница 86: ...86 Power Measurement How to Measure Power By pressing the Hold Cnt softkey a second time the screen will display new measurements continuously Figure 3 5 Power Module Channel is Held Details Screen ...

Страница 87: ...4 4 Laser Sources ...

Страница 88: ...88 Laser Sources This chapter explains how to control laser sources from the user interface of the HP 8163A Lightwave Multimeter and the HP 8164A Lightwave Measurement System ...

Страница 89: ...control fixed wavelength laser source modules 4 1 How to Use Laser Source Modules The Laser Wavelength Value The laser wavelength value λ for a fixed wavelength laser source module is the calibrated optical wavelength value for the laser source This is a fixed value you can display the value but you cannot edit it Figure 4 1 Menu of Parameters for a Fixed Wavelength Laser Source ...

Страница 90: ...either a single wavelength or at both wavelengths simultaneously To choose both output wavelengths for a dual wavelength laser source module 1 Move to λ parameter and press ENTER 2 Select 1309 6 1551 6 using the cursor key and press ENTER You will see the screen in Figure 4 2 How to Enable Disable Laser Output To enable laser output using the user interface Figure 4 2 Dual Wavelength Laser Source ...

Страница 91: ...ER 2 Move to OFF by using the cursor key and press ENTER The green LED on the module front panel switches off How to Set Attenuation The amount of power that is output from a source can be controlled You can use the attenuation parameter to reduce the optical power of the laser output Poutput Psource ATT dB Where Poutput is the power level at the output of the module Psource is the power level at ...

Страница 92: ...ATTENUATION parameter and press ENTER 3 Enter 2 000 and press ENTER How to Modulate the Optical Output How to Change Modulation Source The Modulation Source parameter MOD SRC allows you to modulate the output signal If INTERNAL is displayed the mainframe to modulate sthe optical output The laser source is modulated at the frequency Figure 4 3 The Power Sensor Details Screen ...

Страница 93: ... of phase with each other How to Modulate the Output Signal This parameter sets the frequency of modulation for a laser source module The signal is internally modulated at this frequency if the Modulation Source parameter MOD SRC is ON To modulate the optical output at a frequency of 2 kHz 1 Move to the laser source channel and press the Details softkey 2 Move to the MOD FRQ parameter and press EN...

Страница 94: ...94 Using Laser Source Modules How to Use Laser Source Modules ...

Страница 95: ...5 5 Tunable Lasers ...

Страница 96: ...96 Tunable Lasers This chapter explains how to control Tunable Laser modules from the user interface of the HP 8163A Lightwave Multimeter and the HP 8164A Lightwave Measurement System ...

Страница 97: ...ncrease Linewidth on page 122 If MOD SRC is OFF a continuous wave signal is the chosen optical output A continuous wave signal is the default If any other MOD SRC source is chosen the chosen source modulates the signal For possible modulation sources see How to Modulate a Signal on page 116 Attenuator If your tunable laser has an in built optical attenuator there are two power modes for the fixed ...

Страница 98: ... Output To set the Optical Output of a Tunable Laser module with two optical outputs 1 Press Details 2 Move to OPTICAL OUTPUT and press ENTER 3 Use the Modify Knob to move to one of the following HIGH POWER 2 a high power optical output for use in tesing Erbium Doped Fiber Amplifiers EDFAs you see a screen similar to Figure 5 1 LOW SSE 1 a lower power optical output with low Source Spontaneous Emi...

Страница 99: ...99 Tunable Laser Sources How to Set the Power Figure 5 1 Setting High Power parameters ...

Страница 100: ... optical output for example the high power output for BOTH MASTER 2 The LED beside the primary optical output is lit constantly while the LED beside the secondary optical output flashes For example if you select BOTH MASTER 2 as the regulated path the LED beside Output 2 the High Power Output is lit constantly and the LED beside Output 1 the Low SSE optical output flashes Figure 5 2 Setting Low SS...

Страница 101: ...he module s front panel you automatically choose the optical output for that module For example if you press the ACTIVE hardkey beside Output 1 the Low SSE optical output you choose LOW SSE as the optical output the LED beside the Output 1 lights constantly and you see the screen in Figure 5 2 Furthermore if you then proceed to press the ACTIVE hardkey beside Output 2 the High Power Output you cho...

Страница 102: ... as described in How to Set the Optical Output on page 98 For modules with one optical output this is not necessary 3 Move to the power parameter P and press Pwr unit 4 Move to dBm and press ENTER 5 Type 5 000 using the numerical keypad and press ENTER 6 If POWER MODE is not set to MANUAL ATT see Figure 5 1 that is it is set AUTOMATIC perform the following steps a Move to POWER MODE and press ENTE...

Страница 103: ...103 Tunable Laser Sources How to Set the Power Figure 5 3 Setting Attenuation ...

Страница 104: ... an output power level that is larger than the laser diode can produce at the selected wavelength To avoid this you can reduce the optical output power press Pmax to select the highest permissible power for the selected wavelength value or press Pmax Swp to select the highest permissible power for the selected wavelength sweep Figure 5 4 Excessive Power ...

Страница 105: ... the optical power produced by the laser diode not the optical output power In MANUAL ATT Mode the relationship between the power value P and the voltage level is only proportional to the output power if the attenuation remains constant The attenuator adds a constant offset to the voltage level In AUTOMATIC Attenuation Mode the laser output power and therefore the Analog Output signal is not linea...

Страница 106: ...log output signal and your Tunable Laser module has an attenuator installed it is advisable to use MANUAL ATT Mode and choose a constant attenuation value 5 3 How to Set the Wavelength There are three ways to set the wavelength of the Tunable Laser You can set the wavelength λ directly You can set the wavelength from a base wavelength and an offset in the frequency domain or You can set a waveleng...

Страница 107: ...th To set the wavelength to 1545 500 nm 1 Move to the Tunable Laser channel 2 Move to the wavelength parameter λ and press ENTER 3 Enter 1545 500 and press ENTER How to Set a Relative Wavelength You use a relative wavelength for heterodyning for example when you are measuring the linewidth of DFB distributed feedback lasers The output wavelength λ is set from the base wavelength λ0 and the frequen...

Страница 108: ...ails 2 Press Menu The menu appears 3 Move to WAVELENGTH MODE in the menu and press ENTER A menu appears 4 Move to OFFSET by using the cursor key press ENTER and press CLOSE You see the screen in Figure 5 7 How to Change the Output Wavelength 5 Move to λ and press ENTER λ is the output wavelength λ in the equation above λ cλ0 λ0 df c Figure 5 7 Setting a Relative Wavelength ...

Страница 109: ...es to zero when you press λ λ0 How to Change the Frequency Offset 8 Move to f and press ENTER f represents the frequency offset df in the equation above 9 Enter 1 000 and press ENTER The frequency offset f changes to 1 000 THz NOTE Note how the output wavelength λ changes as you change the value of f 5 4 How to Perform a Wavelength Sweep What is a Wavelength Sweep A wavelength sweep is performed w...

Страница 110: ...ength during each step for a stepped sweep VSWEEP the speed of a continuous sweep SWEEP MODE see How to Perform a Sweep on page 111 REPEAT MODE see How to Set the Repeat Mode on page 110 How to Set the Repeat Mode The REPEAT MODE determines how the instrument performs a multi cycle sweep Select TWOWAY if you want to start every odd sweep cycle at λ START and to start each even sweep cycle at λ STO...

Страница 111: ...the power will be constant for the whole sweep How to Perform a Sweep There are three sweep modes STEPPED which stops at wavelengths that are separated by a certain step size CONTINUOUS which sweeps continually at the speed you set and MANUAL which you can run each step manually NOTE You cannot turn the laser off by pressing the OUTPUT hardkey on the Tunable Laser front panel while a wavelength sw...

Страница 112: ...OP and press ENTER 7 Enter 1570 000 press ENTER 8 Move to CYCLES and press ENTER 9 Enter 0003 and press ENTER 10 Move to REPEAT MODE and press ENTER 11 Move to TWOWAY by using the cursor key and press ENTER 12 Move to STEP and press ENTER 13 Enter 1 000 and press ENTER 14 Move to DWELL and press ENTER 15 Enter 0 5000 and press ENTER 16 Press Run Swp to start the sweep The screen in Figure 5 10 app...

Страница 113: ...113 Tunable Laser Sources How to Perform a Wavelength Sweep Figure 5 10 Executing a Stepped Sweep ...

Страница 114: ...execute a continuous wavelength sweep over the range 1520 nm to 1560 nm three times at a speed of 5 nm s 1 Move to the Tunable Laser channel and press Details 2 Move to SWEEP MODE and press ENTER 3 Move to the CONTINUOUS sweep mode and press ENTER 4 Move to λ START and press ENTER 5 Enter 1520 000 and press ENTER 6 Move to λ STOP and press ENTER 7 Enter 1560 000 press ENTER Figure 5 11 Pausing a S...

Страница 115: ... manual sweep you choose when you want to perform each step of a stepped sweep You can choose to move forward or backward a wavelength or to end the sweep To perform a manual wavelength sweep over the range 1510 nm to 1570 nm three times sweeping two ways in 1 nm steps 1 Move to the Tunable Laser channel and press Details 2 Move to SWEEP MODE and press ENTER 3 Move to the MANUAL by using the curso...

Страница 116: ...gnal 7 Perform step 6 until you choose to press Stop 5 5 How to Modulate a Signal There are two ways of modulating the amplitude of the optical output Using the internal modulation and using external modulation Figure 5 12 Performing a Manual Sweep ...

Страница 117: ...ils softkey 2 Move to the power parameter P and press Pwr unit 3 Move to W by using the cursor key and press ENTER 4 Press ENTER to start editing the output power value 5 Enter 555 000 press Unit or Unit as required to select µW as the power units and press ENTER How to Set the Frequency of a Modulated Signal To set the frequency of the modulation to 6 500 kHz 6 Move to the frequency parameter MOD...

Страница 118: ...nal digital modulation uses a TTL level signal Apply this signal to the input BNC connector on the front panel your Tunable Laser module CAUTION There are two BNC connectors on the front panel of the HP 81680A HP 81682A and HP 81640A a BNC input connector and a BNC output connector There is one BNC connector on the front panel of the HP 81689A a BNC input connector An absolute maximum of 6 V can b...

Страница 119: ...3 Move to EXTERNAL DIGITAL by using the cursor key and press ENTER The text ExtD appears in the Tunable Laser channel External Analog Modulation External analog modulation uses a signal of up to 5 Vpp A 5 Vpp signal causes 15 modulation of the power of the optical signal Apply this signal to the input BNC connector on the front panel of your Tunable Laser module CAUTION There are two BNC connector...

Страница 120: ... Tunable Laser channel Wavelength Locking You can choose wavelength locking as the modulation source so the output wavelength is proportional to the voltage you apply to the input BNC connector on the front panel of your Tunable Laser module as shown in Figure 5 16 See Appendix C of the Tunable Laser Modules User s Guide for the conversion factor for each Tunable Laser module Figure 5 15 External ...

Страница 121: ...length locking 1 Move to the Tunable Laser channel and press Details 2 Move to MOD SRC and press ENTER 3 Move to WAVEL LOCKING by using the cursor key and press ENTER The text λLock appears in the Tunable Laser channel External Digital Modulation using Input Trigger Connector External digital modulation uses a TTL level signal Apply this signal to the Input Trigger connector on the rear panel of t...

Страница 122: ...the duty cycle varies the average power of the output signal of the HP 81689A Tunable Laser module varies in proportion with the change in duty cycle while the power of the output signal of all other modules adjusts so that the average power of the output signal is always 50 of the set power To enable external digital modulation using the Input Trigger Connector 1 Move to the Tunable Laser channel...

Страница 123: ... Output Power of a Modulated Signal on page 117 How to Configure the Modulation Output If your Tunable Laser module has a BNC output connector on its front panel to synchronize your external measuring equipment to the modulation of the module 1 Move to the Tunable Laser channel and press MENU How to Set the BNC Output Line Mode as a Modulation Output 2 Move to BNC OUTPUT and press OK 3 Move to MOD...

Страница 124: ... to output trigger signals to external measurement instruments How to Use Input Triggering You can configure your HP 81689A Tunable Laser module to perform certain tasks when you apply a trigger to the Input Trigger Connector CAUTION A maximum of 5 V can be applied as an external voltage to the Input Trigger connector see page 152 Take care not to use the Trigger Output connector or the Remote Int...

Страница 125: ...rs are ignored NEXT STEP an input trigger will cause the next step of a sweep to be performed RUN SWEEP an input trigger will cause a sweep to be run This is the same as pressing the Run Swp softkey 5 Press ENTER How to Use Output Triggering You can configure your Tunable Laser module to output a trigger when the instrument performs certain tasks To set your module s Output Trigger Configuration F...

Страница 126: ...5 18 4 Move to one of the following by using the cursor key DISABLED the output trigger mode is disabled MODULATION the output trigger connector outputs a TTL signal at the frequency of the internal modulation This signal is output whether the laser is switched on or off STEP FINISHED a trigger is output after every step of a sweep finishes SWEEP FINISHED a trigger is output after a sweep finishes...

Страница 127: ...ignment if you have already tried to reactivate the laser and to reduce power and this has been unsuccessful To realign the laser cavity 1 Move to the Tunable Laser channel and press MENU 2 Move to REALIGN and press OK You will see the screen in Figure 5 19 3 Wait approximately 15 minutes This time depends on how much the wavelength of the instrument has drifted since the last Automatic Realignmen...

Страница 128: ...h may drift due to a change in temperature and other environmental conditions A Wavelength Zero is automatically performed when the instrument boots or when an Automatic Realignment is performed To perform a wavelength zero 1 Move to the Tunable Laser channel and press MENU 2 Move to λ ZERO and press OK You will see the screen in Figure 5 20 Figure 5 19 Realign Screen ...

Страница 129: ...s time depends on how much the wavelength of the instrument has drifted since the last Wavelength Zero was performed NOTE The instrument automatically performs a Wavelength Zero if there is a 5 K temperature change since the last Wavelength Zero was performed Figure 5 20 λ Zero Screen ...

Страница 130: ...130 Tunable Laser Sources How to Use Auxiliary Functions ...

Страница 131: ...A A Installation and Maintenance ...

Страница 132: ...dix provides installation instructions for the HP 8163A Lightwave Multimeter and the HP 8164A Lightwave Measurement System It also includes information about initial inspection and damage claims preparation for use packaging storage and shipment ...

Страница 133: ...ment is connected to the AC power source To disconnect from the line power disconnect the power cord either at the rear power inlet or at the AC line power source receptacle One of these must always be accessible If the instrument is in a cabinet it must be disconnected from the line power by the system s line power switch A 2 Initial Inspection Inspect the shipping container for damage If there i...

Страница 134: ...upplies between 100 V and 240 V at a frequency in the range 50 to 60 Hz The maximum power consumption is 120 VA with all options installed The HP 8164A Lightwave Measurement System can operate from any single phase AC power source that supplies between 100 V and 240 V at a frequency in the range from 50 to 60 Hz The maximum power consumption is 270 VA with all options installed Line Power Cable In...

Страница 135: ...ent covers the power supply is still operating in stand by mode If you need to turn off the power unplug the instrument at the mains or remove the power cable connector from the appliance coupler at the rear of the instrument For this reason the power cable connection should be easily accessible allowing you to turn off the power quickly If the instrument is in a cabinet it must be disconnected fr...

Страница 136: ...ource Insert the power cable plug only into a socket outlet provided with a protective earth contact Do not negate this protective action by the using an extension cord without a protective conductor Before switching on the instrument the protective earth terminal of the instrument must be connected to a protective conductor You can do this by using the power cord supplied with the instrument Do n...

Страница 137: ...cting a new plug it should meet the local safety requirements and include the following features Adequate load carrying capacity see table of specifications Ground connection Cable clamp The AC power requirements are summarized on the rear panel of the instrument Changing the Battery The HP 8163A Lightwave Multimeter and the HP 8164A Lightwave Measurement System contain a lithium thionyl chloride ...

Страница 138: ...out only by HP service personnel If you need to get the fuse replaced refer to your nearest Hewlett Packard Sales Service Office The HP 8163A Lightwave Multimeter contains a F5 0A 250V fast acting fuse The HP 8164A Lightwave Measurement System contains a F10 0A 250V fast acting fuse A 4 Operating and Storage Environment The following summarizes the operating environment ranges In order for the HP ...

Страница 139: ...e Multimeter is up to 95 from 0 C to 40 C Storage and Shipment The instrument can be stored or shipped at temperatures between 40 C and 70 C The instrument should be protected from temperature extremes that may cause condensation within it Instrument Cooling The HP 8163A Lightwave Multimeter and the HP 8164A Lightwave Measurement System have a cooling fan mounted internally Mount or position the i...

Страница 140: ...ance at the rear and at least 25 mm 1 inch of clearance at each side Failure to provide adequate air clearance may result in excessive internal temperature reducing instrument reliability The instrument should not operate when mounted on its rear or side panels Figure A 5 Correct Operating Position of the 8163A Figure A 6 Correct Operating Position of the HP 8164A 25 mm 1 inch 25 mm 1 inch 75 mm 3...

Страница 141: ...n its operating position as shown in Figure A 5 or on its back legs as shown in Figure A 7 The back legs protect the connectors on the back panel from damage CAUTION Before positioning the HP 8164A Lightwave Measurement System on its back legs make sure that the instrument is in stand by mode see page 76 and disconnect all connections to the back panel ...

Страница 142: ...enance Operating and Storage Environment Carrying the Instrument When carrrying the HP 8164A Lightwave Measurement System grip the strap at the side of the instrument as shown in Figure A 8 Figure A 7 Storing the HP 8164A on its Back Legs ...

Страница 143: ...in the four module slots at the front of the HP 8164A Lightwave Measurement System or the two module slots at the front of the HP 8163A Lightwave Multimeter Back loadable modules these tunable laser source modules fit in the large module slot at the rear of the HP 8164A Lightwave Measurement System Figure A 8 Carry the HP 8164A Lightwave Measurement System using this Strap Strap ...

Страница 144: ...ment as this can cause damage to the connectors Make sure that the line power is switched off before you remove a module 1 Lift the catch at the bottom front of the module 2 With the catch lifted pull the module out of the instrument If the module does not slide out freely check that you have lifted the catch high enough Figure A 9 How to Remove a Front Loadable Module from the HP 8163A ...

Страница 145: ...at an unoccupied slot with the catch at the bottom front of the module 2 Insert the module into the slot and onto the tracks If the module does not slide in freely check that you have correctly positioned and correctly oriented it and that there is no obstruction to its movement 3 Apply pressure to the front panel and push the module as far as it goes You hear a small click when the module reaches...

Страница 146: ...tors Make sure that the instrument is in stand by mode see page 135 before you remove a module 1 Untighten the retaining screws see Figure A 11 that secure the module in the instrument 2 Pull the module out of the mainframe using the handle being careful to keep the module completely flat Figure A 11 Back Panel of HP 8164A Lightwave Measurement System Figure A 12 Side View of a Back Loadable Modul...

Страница 147: ...ngle or vertically you may damage the instrument and the module You should pull the module out along the direction shown by the arrow in Figure A 13 Figure A 13 Removing a Back Loadable Module from the HP 8164A Untighten Retaining Screws Remove module by pulling along the direction shown by this arrow ...

Страница 148: ...nt as this can cause damage to the connectors Make sure that the instrument is in stand by mode see page 135 before you remove a module 1 Position the module at the rear of the instrument as shown in Figure A 14 2 Insert the module into the mainframe using the handle being Figure A 14 Fitting a Back Loadable Module Tighten Retaining Screws Insert module along the direction shown by this arrow ...

Страница 149: ...ould insert the module along the direction shown by the arrow in Figure A 14 3 Apply pressure to the handle and push the module as far as it goes You hear a small click when the module reaches its installed position This is the catch making contact 4 Tighten retaining screws to hold module in place Adding a Connector Interface NOTE Before you attach a connector and fiber you should clean them both...

Страница 150: ...he module see Figure A 15 3 You can now attach the optical connector to the connector interface Protecting Empty Module Slots Fitting a Blind Panel or Filler Module helps to prevent dust pollution and optimize cooling by guiding the air flow Fitting Blind Panels for Front Loadable Module Slots To fit the HP 08163 40199 Blind Panel follow the following procedure 1 Position the blind panel as shown ...

Страница 151: ...The HP 81645A Filler Module must be used if you have not installed a back loadable Tunable Laser module into the HP 8164A Lightwave Measurement System The HP 81645A Filler Module can be fitted in the same way as any back loadable module see How to Fit a Back Loadable Module on page 148 The HP 81645A Filler Module can be removed in the same way as any back loadable module see How to Remove a Back L...

Страница 152: ... and the Trigger In connectors CAUTION There are two input BNC connectors the Remote Interlock Connector and the Trigger Input see Figure A 17 or Figure A 18 These are TTL inputs A maximum of 5 V can be applied as an external voltage to either of these input connectors There is one output BNC connectors the Trigger Output see Figure A 17 or Figure A 18 This is a TTL output Do not apply an external...

Страница 153: ...t at this BNC connector is opened the laser is switched off immediately and cannot be switched on until it is closed again Setting the trigger configuration is explained in Chapter 2 A 7 HP IB Interface You can connect your HP IB interface into a star network a linear network or a combination star and linear network The limitations imposed on this network are as follows The total cable length cann...

Страница 154: ...able 10833A 1 m 3 3 ft HP IB Cable 10833B 2 m 6 6 ft HP IB Cable 10833C 4 m 13 2 ft HP IB Cable 10833D 0 5 m 1 6 ft HP IB Adapter 10834A 2 3 cm extender Use this adapter if there is no space to connect your HP IB cable directly to a HP IB interface Connector The following figure shows the connector and pin assignments Connector Part Number 1251 0293 Figure A 19 HP IB Connector ...

Страница 155: ...top of the other Hand tighten the connector lock screws Do not use a screwdriver A 8 HP IB Logic Levels The instruemnt s HP IB lines use standard TTL logic as follows True Low digital ground or 0 Vdc to 0 4 Vdc False High open or 2 5 Vdc to 5 Vdc All HP IB lines have LOW assertion states High states are held at 3 0 Vdc by pull ups within the instrument When a line functions as an input it requires...

Страница 156: ...of service required The original shipping carton and packing material may be reusable but the Hewlett Packard Sales Service Office will provide information and recommendation on materials to be used if the original packing is no longer available or reusable General instructions for repackaging are as follows Wrap instrument in heavy paper or plastic Use strong shipping container A double wall cart...

Страница 157: ...r a test and measurement sales representative United States Hewlett Packard Company Test and Measurement Call Center P O Box 4026 Englewood CO 80155 4026 tel 1 800 452 4844 Canada Hewlett Packard Canada Ltd 5150 Spectrum Way Mississauga OntarioL4W 5G1 tel 905 206 4725 Europe Hewlett Packard Company European Marketing Organisation P O Box 999 1180 AZ Amstelveen The Netherlands tel 31 20 547 9999 Ja...

Страница 158: ...126 U S A tel 305 267 4245 4220 fax 305 267 4288 Australia New Zealand Hewlett Packard Australia Ltd 31 41 Joseph Street Blackburn Victoria 3130 Australia tel 1 800 629 485 Australia tel 0 800 738 378 New Zealand fax 61 3 9210 5489 Asia Pacific Hewlett Packard Asia Pacific Ltd 17 21 F Shell Tower Times Square 1 Matheson Street Causeway Bay Hong Kong SAR tel 852 2599 7777 fax 852 2506 9285 ...

Страница 159: ...B B Accessories ...

Страница 160: ...ave Multimeter and the HP 8164A Lightwave Measurement System are available in various configurations for the best possible match to the most common applications This appendix provides information on the available options and accessories ...

Страница 161: ...ter Modules on page 164 User s Guides Product Opt Description HP 8163A Lightwave Multimeter Mainframe Tunable Laser Source Module Model No Description HP 81689A Tunable Laser for Multi Channel Test Applications User s Guides Part No Description 08164 91011 HP 8163A Lightwave Multimeter HP 8164A Lightwave Measurement System User s Guide 08164 91016 HP 8163A Lightwave Multimeter HP 8164A Lightwave M...

Страница 162: ...le Laser module See Fitting a Filler Module for Back Loadable Module Slots on page 151 for more details Product Opt Description HP 8164A Lightwave Measurement System Mainframe 1CN Front Handle Kit 1CM Rack Mount Kit 0B2 Additional User s Guide 0BF Additional Programming Guide Tunable Laser Source Modules Model No Description HP 81680A Tunable Laser for the Test of Critical dense WDM Components HP ...

Страница 163: ... output A built in optical attenuator is not available for the HP 81689A Option 021 HP 81689A Standard single mode fiber for straight contact connectors Option 022 HP 81689A Standard single mode fiber for angled contact connectors Option 071 All Tunable Laser Source Modules Polarization maintaining fiber Panda type for straight contact connectors Option 072 All Tunable Laser Source Modules Polariz...

Страница 164: ...ed for the HP 8153A Lightwave Multimeter except the HP 81534A Return Loss Module which may be supported by later firmware releases See Chapters 3 4 and 5 to find out how to use these modules from the User Interface User s Guides Part No Description 08164 91011 HP 8163A Lightwave Multimeter HP 8164A Lightwave Measurement System User s Guide 08164 91016 HP 8163A Lightwave Multimeter HP 8164A Lightwa...

Страница 165: ...524A InGaAs 3 to 90 dBm 800 to 1650 nm HP 81525A InGaAs 27 to 70 dBm 800 to 1650 nm Optical Head Interface Modules Model No Description HP 81533A Optical Head Interface Module HP 81533B Optical Head Interface Module Power Sensor Modules Model No Description HP 81530A Si 3 to 100 dBm 450 to 1020 nm HP 81531A InGaAs 3 to 90 dBm 800 to 1700 nm HP 81532A InGaAs 3 to 110 dBm 800 to 1700 nm HP 81536A In...

Страница 166: ... HP IB Cable 10833D 0 5 m 1 6 feet HP IB Adapter 10834A 2 3 cm extender Use this adapter if there is no space to connect your HP IB cable directly to a HP IB interface Laser Source Modules Model No Description HP 81551MM 850 nm Multimode Laser Diode HP 81552SM 1310 nm Single Mode Laser Diode HP 81553SM 1550 nm Single Mode Laser Diode HP 81554SM 1310 1550 nm Single Mode Laser Diode LED Source Modul...

Страница 167: ...C C Specifications ...

Страница 168: ...ugh improved quality control Specifications describe the instrument s warranted performance Supplementary performance characteristics describe the instrument s non warranted typical performance Because of the modular nature of the instrument the performance specifications apply to the modules rather than the mainframe unit The specifications for a module are supplied with that module You should ap...

Страница 169: ... averaging time Selectable total data averaging time 4000 measurement results channel min 100 µs or 10 ms depending on sensor module 20 ms to 60 min 20 ms to 99 59 59 h Trigger True synchronous on all channels Environmental Storage temperature Operating temperature Humidity 40 C to 70 C 0 C to 45 C 95 R H from 0 C to 45 C Power AC 100 240 V 10 48 66 kHz 100 VA max Dimensions 88 mm 213 mm 380 mm 3 ...

Страница 170: ...rts all modules from the HP 8153A Lightwave Multimeter apart from the HP 81534A Return Loss Module Data Acquisitions Memory Sampling time Selectable data averaging time Selectable total data averaging time 4000 measurement results channel min 100 µs or 10 ms depending on sensor module 20 ms to 60 min 20 ms to 99 59 59 h Trigger True synchronous on all channels Environmental Storage temperature Ope...

Страница 171: ...dard HP 8153A code compatibility All modes and parameters accessible via HP IB interface RS232C Interface max baud rate 115200 bps Parallel Printer Interface Centronics Number of Modules 4 front loadable Modules 1 back loadable Module PC Card slot PCMCIA 1 0 JEIDA 4 0 Data Storage Internal Hard Disk Drive 3250 MByte Memory cards according to PCMCIA type I II and III External Keyboard PS 2 connecto...

Страница 172: ...tandard please contact your local Hewlett Packard Sales and Service Office The product was tested in a typical configuration with HP systems Type test Lightwave Multimeter consisting of HP 8163A Mainframe and modules HP 81689A1 Tunable Laser for Multi Channel Test Applications Safety IEC 1010 1 1990 incl Adm 1 1992 Adm 2 1995 EN 61010 1993 IEC 825 1 1995 FDA 21 CFR 1040 10 EN 60825 1 1994 EMC EN 5...

Страница 173: ... Strasse 110 140 D 71034 Böblingen Germany Lightwave Measurement System consisting of HP 8164A1 Mainframe and modules HP 81680A1 Tunable Laser Source HP 81682A1 Tunable Laser Source HP 81689A1 Tunable Laser for Multi Channel Test Applications HP 81640A1 Tunable Laser Source Safety IEC 1010 1 1990 incl Adm 1 1992 Adm 2 1995 EN 61010 1993 IEC 825 1 1995 FDA 21 CFR 1040 10 EN 60825 1 1994 EMC EN 5501...

Страница 174: ...ve 89 336 EEC The product also conforms to other standards not listed here If you need further information on conformance to a particular standard please contact your local Hewlett Packard Sales and Service Office The product was tested in a typical configuration with HP systems Type test 1 The FDA Accession Number 9122175 06 Böblingen 29 April 1999 Wolfgang Fenske OCM Regulations Consultant ...

Страница 175: ...D D Performance Tests ...

Страница 176: ...e and a display The HP 8164A Lightwave Measurement System also has a floppy disk drive The complete characteristics to which the HP 8163A Lightwave Multimeter or the HP 8164A Lightwave Measurement System is tested are given in Appendix C Specifications All tests can be performed without access to the interior of the instrument The performance tests refer specifically to tests using the Diamond HMS...

Страница 177: ...d can also be used as an abbreviated test procedure if you are familiar with test procedures The Test Record can also be used as a permanent record and may be reproduced without written permission from Hewlett Packard Instrument Description of Instrument Accessory Alternative Models HP 8163A or HP 8164A Mainframe the Device Under Test DUT HP 81552SM Laser Source HP 81553SM HP 81554SM HP 81531A Pow...

Страница 178: ...ystem can be tested Appendix C also lists some supplemental characteristics of the HP 8163A Lightwave Multimeter and the HP 8164A Lightwave Measurement System and should be considered as additional information Any changes in the specifications due to manufacturing changes design or traceability to the National Institute of Standards and Technology will be covered in a manual change supplement or r...

Страница 179: ...splay Key Functional Test 1 Setup the test equipment as shown in Figure D 1 Insert the fixed laser source module in slot 1 and the power sensor in slot 2 If you use the HP 8164A Lightwave Measurement System insert the back loadable Tunable Laser module if available in slot 0 2 Switch on the mainframe and wait until it has booted Testing Hardkeys 3 Press CONFIG You should see the Configuration menu...

Страница 180: ...s Check the fields on the display being highlighted one after another 10 Press the left arrow on the cursor key several times Check the fields on the display being highlighted one after another 11 Press the up arrow on the cursor key several times Check the fields on the display being highlighted one after another 12 Press the down arrow on the cursor key several times Check the fields on the disp...

Страница 181: ... icon should be displayed while all parameters are set to their default values The Overview Screen showing all channels should appear Testing the the Modify Knob NOTE The Modify Knob is only available if you use the HP 8164A 23 Turn the Modify Knob clockwise Check the fields on the display being highlighted one after another 24 Turn the Modify Knob counter clockwise Check the fields on the display...

Страница 182: ...dB should be displayed as the CAL value 34 Press several times The CAL field should toggle between 10 789 dB and 10 789 dB 35 Press PRESET the green hardkey to return to the Overview Screen Module Interaction Test NOTE The following functional test assumes the use of modules which are within specification 1 Setup the test equipment as shown in Figure D 1 Insert the fixed laser source module in slo...

Страница 183: ...wer sensor module from slot 2 to slot 4 11 Connect the output of the laser source in slot 3 to the input of the power sensor in slot 4 12 Repeat step items 2 to 8 Test of the Tunable Laser Module Channel Slot 0 If you need to test a back loadable Tunable Laser module slot perform the remaining list items 13 Connect the power output of the Tunable Laser module to the input of the power sensor 14 Sw...

Страница 184: ...controller 4 Check that the lowest softkey is called Local This indicates that the instrument received the query 5 The reply from the instrument should be a string of the form HEWLETT PACKARD Model Number Serial Number Firmware Revision Number 6 Press Local to return the instrument to local control Tunable Laser Module Attenuation ATT Power P HP 81680A Output 2 High Power 0 dB 10 00 dBm HP 81682A ...

Страница 185: ...stomer _______________________ Performed by ________________________ Report No _______________________ Special Notes ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________...

Страница 186: ..._____________________ ___________ ___________ ___________ 7 ___________________________ ___________ ___________ ___________ 8 ___________________________ ___________ ___________ ___________ 9 ___________________________ ___________ ___________ ___________ 10 ___________________________ ___________ ___________ ___________ 11 ___________________________ ___________ ___________ ___________ 12 _______...

Страница 187: ...Test Check Passed Failed as appropriate Passed Failed Test of the Hardkeys ______ ______ Test of the Cursorkey and the ENTER key ______ ______ Test of the Softkeys ______ ______ Module Interaction Test Minimum Maximum Specifications Result Specifications Passed Failed Test of Slot 1 and Slot 2 6 dBm ______ 6 dBm ______ ______ HP IB Interface Test HP IB Interface Test ______ ______ ...

Страница 188: ...188 Performance Tests Test Record ...

Страница 189: ...stomer _______________________ Performed by ________________________ Report No _______________________ Special Notes ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________...

Страница 190: ...______________________ ___________ ___________ ___________ 7 ___________________________ ___________ ___________ ___________ 8 ___________________________ ___________ ___________ ___________ 9 ___________________________ ___________ ___________ ___________ 10 ___________________________ ___________ ___________ ___________ 11 ___________________________ ___________ ___________ ___________ 12 ______...

Страница 191: ...st of the Modify Knob ______ ______ Test of the Number Keys ______ ______ Module Interaction Test Minimum Maximum Specifications Result Specifications Passed Failed Test of Slot 1 and Slot 2 6 dBm _____ 6 dBm ______ ______ Test of Slot 3 and Slot 4 6 dBm _____ 6 dBm ______ ______ Test of Slot 0 Optional Use of HP 81680A 16 dBm _____ 4 dBm ______ ______ Use of HP 81682A standard 6 dBm _____ 6 dBm _...

Страница 192: ...192 Performance Tests Test Record ...

Страница 193: ...E E Cleaning Procedures ...

Страница 194: ...ompound Clean the connectors interfaces and bushings carefully each time after use WARNING Make sure to disable all sources when you are cleaning any optical interfaces Under no circumstances look into the end of an optical cable attached to the optical output when the device is operational The laser radiation is not visible to the human eye but it can seriously damage your eyesight ...

Страница 195: ...t Housing Use a dry and very soft tissue to clean the instrument housing and the keypad Do not open the instrument as there is a danger of electric shock or electrostatic discharge Opening the instrument can cause damage to sensitive components and in addition your warranty will be voided HP P N Lens Cleaning Paper 9300 0761 Special Cleaning Tips 9300 1351 Blow Brush 9300 1131 Adhesive Cleaning ta...

Страница 196: ...e adhesive tape several times against the connector surface to remove any remaining particles After use store the tape in the container 5 Protect the connector surface with a cap E 4 Cleaning Connector Interfaces NOTE If any index matching compound was used use an ultrasonic bath with isopropyl alcohol to clean the connector interfaces Apply some isopropyl alcohol to the pipe cleaner and wash the ...

Страница 197: ...VER insert any cleaning tool into the bushing as this may affect the optical system NEVER use any index matching compound cleaning fluid or cleaning spray E 6 Cleaning Detector Windows As used on the HP 81520A and HP 81521B Optical Heads large area 1 Use the blow brush to remove any particles from the surface 2 Wipe the surface with cleaning paper or special cleaning tips E 7 Cleaning Lens Adapter...

Страница 198: ... detector modules Normally the lens interface can be cleaned by using the blow brush If adhesive dirt must be removed perform as follows 1 Using the blow brush remove the dust from the lens surface 2 Press the special cleaning tip to the lens surface and rotate the tip NOTE Use alcohol for cleaning only when the above procedure does not help or if the dirt is caused by oil or fat ...

Страница 199: ...F F Firmware Updates ...

Страница 200: ...200 Firmware Updates This appendix provides information about the firmware update process for the HP 8163A Lightwave Multimeter and the HP 8164A Lightwave Measurement System ...

Страница 201: ...ightwave clicking on Support and then clicking on Software Patches http www hp com go lightwave also contains the most current product information for your instrument for example User s Guides VISAplug play Instrument Drivers Product Notes and Application Notes Firmware Update Request Card If you don t have access to the World Wide Web you can return the Firmware Update Request Card to Hewlett Pac...

Страница 202: ...he Firmware Update Request Card You download firmware update from the Internet No No No Yes Yes Yes You download firmware update from the Internet You return the Firmware Update Request Card You insert HP 8163x series module END END You receive update media for example CD ROM through the mail Instrument generates Error Message You perform firmware update as described in readme txt Help page refers...

Страница 203: ...me txt for further information on installing the firmware How to Update Firmware from CD ROM If the instrument s firmware is supplied to you on CD ROM insert the CD ROM in the CD ROM drive of your personal computer Access the CD ROM drive and click on readme txt for further information on installing the firmware How to Update Firmware from Floppy Disk If the instrument s firmware is supplied to yo...

Страница 204: ...204 F Firmware Updates Firmware Update Process ...

Страница 205: ...a Monitor 59 Connector Bushings cleaning 197 Connector Interface 149 Connector interfaces cleaning 196 Contrast 52 Conventions 14 Cooling 139 D dB 65 dBm 65 Declaration of Conformity 172 Default Password 31 55 Detector Lens Interfaces cleaning 198 Detector Windows cleaning 197 Dual Wavelength Laser Sources 90 E Edit Parameters 41 accept new values 42 cancel softkey 45 Continuous 42 Discrete 44 out...

Страница 206: ...pply requirements AC 134 Power Units 64 R Range auto 74 manual 74 range mode 73 setting 74 Realignment automatic 127 Reference 67 Remote Interlock Connector 152 S Safety 133 summary 4 symbols 8 Sample Session 46 Slot Numbers 32 Specifications HP 8163A 169 HP 8164A 170 Storage and Shipment 139 Storage environment 138 Storage Position 141 T Temperature for operation and storage 139 Trigger In Connec...

Страница 207: ...onfig softkey 39 cursor key 34 details screen 36 features 32 hardkeys 32 menu softkey 38 modify knob 35 numerical keypad 35 overview screen 33 softkeys 32 W Watts 64 Wavelength laser sources 89 power meters 70 tunable lasers 106 Wavelength Sweep 109 continuous 114 manual sweep 115 performing a sweep 111 repeat mode 110 stepped 112 sweep parameters 110 Wavelength Zero 128 Z Zeroing Electrical Offse...

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