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Using the OSICS DFB Module

OSICS User Manual

8.5

Configuring the OSICS DFB Signal Modulation

Presentation

In addition to the OSICS Mainframe built-in modulation source (see section

Configuring

the OSICS Mainframe Modulation, p. 40

), the OSICS DFB module holds a built-in digital

modulation source.
The OSICS DFB module supports the following modulation schemes:

•

Internal modulation:

•

Digital (TTL) modulation using the OSICS DFB internal source

•

Digital (TTL) modulation using the OSICS Mainframe internal source

•

External modulation:

•

Digital (TTL) modulation using an external source connected to the OSICS

Mainframe

•

Analog modulation using an external source connected to the OSICS DFB

The

OUT 2

BNC connector can be used as an external modulation source for other

devices.

Modulation

Scheme

Figure 41: Mainframe and DFB Module Modulation Scheme

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Summary of Contents for OSICS

Page 1: ...3 0 1 5 5 4 5 4 6 3 5 www yenista com OSICS Multifunction Platform 8 Channel Modular Platform User Manual OSICS_UM_3v2 2...

Page 2: ......

Page 3: ...enista for use with an instrument will execute its programming instructions when properly installed on that instrument Yenista does not warrant that the operation of the instrument software or firmwar...

Page 4: ...d Room 834 Jing an District Shanghai 200040 CHINA Phone 86 21 3251 7155 Sales Sales Americas Email sales am yenista com Phone 1 805 367 4075 Sales China Email sales china yenista com Phone 86 21 3251...

Page 5: ...OSICS TLS AG v 3 11 Intended Readers Users of this manual must be familiar with fiber optic technology Date 5 April 2017 Manual Reference OSICS_UM_3v2 2 Typographical Conventions Symbols bold Identifi...

Page 6: ...About This Manual 6 OSICS User Manual...

Page 7: ...and Initializing the OSICS Multifunction Platform 29 3 1 Turning on the OSICS Multifunction Platform and Accessing the System Status Screen 29 3 2 Accessing the OSICS Setup Menus 33 3 3 Checking the...

Page 8: ...on 65 8 1 1 OSICS DFB Technical Specifications 65 8 1 2 OSICS DFB Module Overview 67 8 2 Enabling Disabling the Light Source of the Module 69 8 3 Setting the Optical Output Power of the DFB Module 70...

Page 9: ...Digital TTL Modulation Using the Mainframe Internal Source 113 9 7 3 Setting Up Digital TTL Modulation Using an External Source 116 9 7 4 Setting Up Analog Modulation Using an External Source 119 9 7...

Page 10: ...the Optical Emission Wavelength Frequency 161 12 7 2 Step adjusting the Wavelength Frequency Value of the Module 162 12 7 3 Scanning a Predefined Wavelength Frequency Range 163 12 8 Activating Coheren...

Page 11: ...Wavelength Range and Output Power 203 13 10 4 Validating the Side Mode Suppression 204 14 Using the OSICS TLS 50 Module 205 14 1 OSICS TLS 50 Presentation 205 14 1 1 OSICS TLS 50 Technical Specificat...

Page 12: ...Mode 237 15 6 1 Selecting the Optical Frequency Deviation 237 15 6 2 Enabling Disabling the SBS Suppression 238 15 6 3 Disabling the Frequency Control Dither Function 238 15 7 Testing the Performance...

Page 13: ...l instruments such as microscopes and telescopes Class 1M lasers produce large diameter beams or beams that are divergent Laser Radiation Label This label indicates the location of the laser output Do...

Page 14: ...ct depends on version make sure to allow at least a 15 mm 0 6 inches gap between two products CAUTION Power Supply Safety Requirements Make sure the product power source does not apply more than 265 V...

Page 15: ...led from the OSICS Mainframe front panel Any OSICS module can be inserted in any multipurpose module slot and in any combination The OSICS Mainframe automatically detects OSICS modules after plug in T...

Page 16: ...rol GPIB connector for IEEE 488 communication USB B connector for RS 232C communication SubD 9 for remote interlock Analog Monitoring Multi purpose BNC output for current power or temperature monitori...

Page 17: ...Off Button The On Off button turns on off the OSICS Mainframe The button lights green if the OSICS Mainframe is turned on Rotary knob The rotary knob enables you to navigate through the menus and to...

Page 18: ...B B RS 232C This port enables you to perform RS 232C remote control operations For more information see OSICS Programming Guide IEEE 488 GPIB This port enables you to perform IEEE 488 2 remote control...

Page 19: ...his BNC analog output connector enables channel monitoring of power current and temperature see section Monitoring the OSICS DFB Module Parameters Using the Analog OUT 1 Output p 91 For SWT APC module...

Page 20: ...lectrical Safety Label This label indicates an injury hazard It appears on a location that requires special instructions for proper use you must consult the documentation before using the element of t...

Page 21: ...block the air flow Ventilation holes are located on the bottom and back sides of the OSICS Mainframe 5 On the rear panel see Figure 2 p 18 make sure the power switch is set to O 6 To tilt the OSICS M...

Page 22: ...Make sure the product power source does not apply more than 265 Volts RMS between the supply conductors or between either of the supply conductors and the ground To avoid the possibility of injury ma...

Page 23: ...Starting Open the package with care and remove the OSICS module from its packaging Make sure you have a medium small size flat blade screwdriver Procedure 1 Turn the OSICS Mainframe off see section Tu...

Page 24: ...he OSICS chassis and insert the module into the open slot 5 Put your thumb on the captive screw notch of the module to push it in so that it slides in freely 6 Apply pressure to seat the module in the...

Page 25: ...e located behind the captive screw notch of the module and pull the module out as illustrated in the following figure Figure 6 Module Installation Module Removal 4 Hold the module with both hands by i...

Page 26: ...ean 3 On the front panel lift the protective cap and connect the optical component s to the OSICS module via the FC APC fiber optic connector 4 In case of frequent connect disconnect use an intermedia...

Page 27: ...isolated from other circuits including earth ground Procedure To connect the remote interlock switch use a connector that meets the following pin assignment Pins 1 2 shorted Pins 6 7 connect to exter...

Page 28: ...Installing and Connecting the OSICS Multifunction Platform 28 OSICS User Manual...

Page 29: ...17 The OSICS Mainframe performs the initialization routine the message Initializing appears The OSICS Mainframe prompts you to enter a password Figure 8 Password Screen 3 Enter your password as follo...

Page 30: ...igure the OSICS Mainframe see section Accessing the OSICS Mainframe Main Setup Menu p 33 One tab for each OSICS module from left to right 1 to 8 to configure each module individually see section Acces...

Page 31: ...p 27 Info Additional information on module operating status as explained in the following lines A T100 and ECL modules only The Auto peak find function is enabled see sub section Activating the Auto...

Page 32: ...ules only The SBS Suppression function is enabled see sub section Setting the SBS Suppression Mode in the appropriate module section of this manual s SWT module only A sequence is running see section...

Page 33: ...b to enter the highlighted menu The Module Name Setup menu appears Setup Menu Description Figure 10 Setup Menu Examples Menus Sub menus and Symbols indicates the location of the cursor operated using...

Page 34: ...version of your OSICS Mainframe or OSICS modules Procedure Checking the Firmware Version of the OSICS Mainframe 1 Access the Main Setup menu see section Accessing the OSICS Setup Menus p 33 2 Turn th...

Page 35: ...ease the value or anticlockwise to decrease it and press the knob to validate the selected digit c Perform steps a and b again with the other digits to modify d Turn the rotary knob clockwise to put t...

Page 36: ...Procedure 1 On the front panel press the on off button see Figure 1 p 17 The message Saving Configuration appears on screen It indicates that the current system configuration is being saved in the STA...

Page 37: ...cal device to the OSICS modules see section Connecting Optical Devices to OSICS Modules p 26 Procedure Enabling the Light Source of All Installed Modules 1 Access the Main Setup menu see section Acces...

Page 38: ...t 4 2 2 Setting the Optical Output Power of All Installed Modules Subject You can set the optical output power in two different ways From the wanted module menu you can set the module output power ind...

Page 39: ...electing the Spectral Unit for all Installed Modules Subject The following procedure explains how to modify the spectral unit nm or GHz for all modules installed in the OSICS Mainframe You cannot set...

Page 40: ...6 The OSICS Mainframe works as a TTL modulated signal generator for DFB T100 and ECL modules and also for external devices if connected to the Synchro output BNC connector Modulation Scheme The modula...

Page 41: ...s the modulation specifications The OSICS Mainframe signal generator can provide a TTL signal with a repetition frequency in the range 123 Hz 1 MHz but for optimum modulation performance we recommend...

Page 42: ...to highlight it b Turn the knob clockwise to increase the value or anticlockwise to decrease it and press the knob to validate the selected digit c Perform steps a and b again with the other digits t...

Page 43: ...erator Procedure Step 1 Set the OSICS Mainframe modulation source to EXTERNAL 1 Access the Main Setup menu see section Accessing the OSICS Mainframe Main Setup Menu p 33 2 Enter the Source sub menu as...

Page 44: ...enables you to use the Mainframe as a modulation source for external devices Procedure 1 Set up the wanted digital modulation to the Module Name module using one of the following methods OSICS Mainfra...

Page 45: ...ally saved when the OSICS Mainframe is turned off and automatically loaded at system startup The first time you turn on the OSICS Mainframe the STARTUP configuration is identical to the DEFAULT config...

Page 46: ...reflectance SLD 5 mW Spectral unit nm Wavelength Wavelength Frequency setting ECL T100 center wavelength DFB minimum wavelength TLS AG TLS 50 CH1 SWT SWT APC none ATN BKR 1550 SMF SLD maximum wavelen...

Page 47: ...cess the Main Setup menu see section Accessing the OSICS Mainframe Main Setup Menu p 33 2 Expand the Configuration menu and enter the Save sub menu The Save configuration sub menu appears and displays...

Page 48: ...Accessing the OSICS Mainframe Main Setup Menu p 33 2 Expand the Configuration menu and enter the Load sub menu The Load configuration sub menu appears and displays the current configuration Figure 21...

Page 49: ...module in a reverse configuration could create higher return loss value and attenuation might not be corrected calibrated We recommend to use the attenuator in a standard input output configuration In...

Page 50: ...1550 nm for SMF PM15 RL at 1310 nm for PM13 6 PMF slow axis is aligned to the connector key Opening for air output Top Notch Bottom Notch 96 pin VME Connector Input Optical Connector FC APC type Retai...

Page 51: ...ormation and Warning Markings p 19 6 2 Setting the OSICS ATN HP Optical Attenuation You can change the optical attenuation for each module individually using the ATN Unit Setup menu You can configure...

Page 52: ...2 2 Performing Real time Adjustments to the ATN Attenuation Subject The Adjust Attenuation feature lets you adjust the attenuation of the ATN module in real time within the accuracy determined by the...

Page 53: ...The following procedure explains how to modify the attenuation step by step using the attenuation increment defined in the Set Step menu The initial attenuation value is originally defined in the Set...

Page 54: ...h Subject The Set f menu enables you to set the reference wavelength Each module is factory calibrated at different wavelengths depending on the module version SMF or PMF see section OSICS ATN HP Tech...

Page 55: ...Accessing an OSICS Module Setup Menu p 33 2 Turn the rotary knob to put the cursor before the Offset menu and press the knob The Set Offset menu appears and displays the current selected wavelength an...

Page 56: ...Using the OSICS ATN HP Module 56 OSICS User Manual BKR TLS 50 ATN DFB ECL T100 SLD SWT TLS AG SWT APC MAIN...

Page 57: ...a large wavelength range Figure 29 OSICS BKR Principle 7 1 1 OSICS BKR Technical Specifications JSSPS 7BSJBCMF UUFOVBUPS OQVU BOE SFGMFDUFE PVQVU OSICS BKR Wavelength Range 1250 1650 nm on SMF 1240 15...

Page 58: ...ables you to lock unlock the module inserted into the slot of the OSICS Mainframe Rear Panel Notches The top and bottom notches enable you to slide the module into the OSICS Mainframe slot see section...

Page 59: ...Reflectance to a Definite Value p 59 Adjusting the reflectance level in real time see section Performing Real time Adjustments to the BKR Reflectance p 60 7 2 1 Setting the Reflectance to a Definite V...

Page 60: ...rrent reflectance setting Figure 32 BKR Unit Setup Adjust Attenuation menu 3 Modify the value as follows to update the BKR module reflectance in real time a Turn the rotary knob to put the cursor unde...

Page 61: ...lectance step in dB Figure 33 BKR Unit Setup Set Step sub menu 3 Modify the step value as follows a Turn the rotary knob to put the cursor under the digit you want to modify and press the knob to high...

Page 62: ...nu see section Accessing an OSICS Module Setup Menu p 33 2 Turn the rotary knob to put the cursor before the Set f menu and press the knob The Set Wavelength Set Frequency menu appears and displays th...

Page 63: ...ion Accessing an OSICS Module Setup Menu p 33 2 Expand the Offset menu and enter one of the calibrated wavelengths frequencies The Set Offset menu appears and displays the current selected wavelength...

Page 64: ...Using the OSICS BKR Module 64 OSICS User Manual BKR TLS 50 ATN DFB ECL T100 SLD SWT TLS AG SWT APC MAIN...

Page 65: ...l flexibility the center wavelength can be finely tuned see section OSICS DFB Technical Specifications p 65 8 1 1 OSICS DFB Technical Specifications CWDM SMF CWDM PM13 CWDM PM15 DWDM PM15 LANWDM SMF L...

Page 66: ...PER Polarization Extinction Ratio n a 17 dB SMF 17 dB Electrical connector analog modulation Coaxial SMB 50 Others Laser safety Class 1 M Dimensions WxHxD 35 x 128 x 230 mm Weight 1 1 kg 1 For DFB DW...

Page 67: ...ion p 30 Modulation Input Connector Coaxial SMB type This connector enables you to directly modulate the laser diode chip of the module see section Setting Up Analog Modulation Using an External Sourc...

Page 68: ...SICS Module Into the OSICS Mainframe p 23 96 pin VME Connector The rear panel of the OSICS modules interfaces with the OSICS Mainframe backplane by means of the 96 pin VME connector Opening The openin...

Page 69: ...e For laser safety reasons the light source in modules are disabled after OSICS initialization Before Starting Connect an optical device to the OSICS module see section Connecting Optical Devices to O...

Page 70: ...ot set the power unit of an individual module Procedure 1 Access the DFB Unit Setup menu see section Accessing an OSICS Module Setup Menu p 33 2 Turn the rotary knob to put the cursor before the Set P...

Page 71: ...er setting with the first digit highlighted Figure 38 DFB Unit Setup Adjust Power menu 3 Adjust the power value as follows a Turn the knob clockwise to increase the digit value or anticlockwise to dec...

Page 72: ...up menu see section Accessing an OSICS Module Setup Menu p 33 2 Turn the rotary knob to put the cursor before the Set f menu and press the knob The Set Wavelength menu appears and displays the emissio...

Page 73: ...as follows a Turn the rotary knob to put the cursor under the digit you want to modify and press the knob to highlight it b Turn the knob clockwise to increase the value or anticlockwise to decrease i...

Page 74: ...CS DFB internal source Digital TTL modulation using the OSICS Mainframe internal source External modulation Digital TTL modulation using an external source connected to the OSICS Mainframe Analog modu...

Page 75: ...wing figure Figure 42 TTL Modulated Output Power Signal DFB Module Procedure Step 1 Set the module modulation source to INTERNAL 1 Access the DFB Unit Setup menu see section Accessing an OSICS Module...

Page 76: ...to validate the selected digit c Perform steps 1 and 2 again with the other digits to modify d Turn the rotary knob clockwise to put the cursor under ENTER and press the knob to validate the new frequ...

Page 77: ...d to the OSICS Mainframe Synchro output connector The range of the frequency of the modulation provided by the OSICS Mainframe is defined to encompass the frequency requirements of all types of OSICS...

Page 78: ...uency sub menu appears and displays the current selected modulation frequency value Figure 47 Main Setup Modulation Frequency 2 Modify the frequency value as follows The internal TTL signal generator...

Page 79: ...enu appears and the cursor automatically points to the current modulation source setting Figure 49 DFB Unit Setup Modulation Source Mainframe 3 Turn the rotary knob to put the cursor before MAINFRAME...

Page 80: ...tor to be modulated in a synchronous way by means of an external source The OSICS Mainframe distributes the external modulated signal to all installed modules in order to synchronize all modules with...

Page 81: ...kHz The green LED located next to the Mod In connector is lit to indicate that an external signal generator is connected Step 3 Set the module modulation source to MAINFRAME 1 Access the DFB Unit Setu...

Page 82: ...enu appears and displays the current state of the modulation control Figure 53 DFB Unit Setup Modulation Control On 3 Turn the rotary knob to put the cursor before the wanted modulation ON for standar...

Page 83: ...current Vin is the voltage applied to the SMB input Rinternal is the 50 internal impedance of your DFB module TTL modulation can also be applied directly on the module s front panel using the input S...

Page 84: ...er than the maximum allowed current Imax indicated in the system acceptance test report The best way to fulfill the above conditions is to monitor the DFB module bias current Ibias via the rated outpu...

Page 85: ...tion Source If the voltage applied to the SMB input is an AC signal with no DC component and with peak to peak amplitude is Vpp the above condition becomes Vpp 2 x Rinternal Imax Ibias Vpp 2 x Rintern...

Page 86: ...the laser diode bias current for a given modulation rate 15 and frequency The new diode current fluctuates symmetrically around the original value of the bias current Ibias Ibias is the mean average o...

Page 87: ...he digit you want to modify and press the knob to highlight it b Turn the knob clockwise to increase the value or anticlockwise to decrease it and press the knob to validate the selected digit c Perfo...

Page 88: ...s Modulation menu and enter the Set Rate sub menu The Set Sinus Rate sub menu appears and displays the current rate of the sinusoidal modulation signal Figure 59 DFB Unit Setup Sinus Modulation Set Ra...

Page 89: ...ule Setup Menu p 33 2 Expand the Sinus Modulation menu and enter the Control sub menu The Modulation Control sub menu appears and displays the current state of the modulation function Figure 60 DFB Un...

Page 90: ...nal modulation source for other devices The following procedure explains how to set the OUT 2 analog signal You can also use the OSICS Mainframe as a modulation source for external devices with the Sy...

Page 91: ...scale factors for the OUT 1 signal are the following FPGA v 6 00 Laser diode current ILD 10 V 300 mA Optical output power POUT 10 V 30 mW Laser chip temperature 0 V 10 C 10 V 45 C The following proced...

Page 92: ...s 1560 000 nm and you set an offset of 0 100 nm the actual emission wavelength at the optical output is offset 0 100 nm but the DFB display is unchanged and still shows 1560 000 nm You can set a wavel...

Page 93: ...ower meter The new calibration data sets the new system calibration default Before Starting Make sure you have a power meter Procedure 1 Set the DFB output power to 1 mW 2 Connect the optical output o...

Page 94: ...ration Subject To externally verify the performance of the OSICS refer to the procedure described in section Performing a Wavelength Calibration p 92 and section Performing a Power Calibration p 93 If...

Page 95: ...rs needed may vary depending on the type of equipment used and the distance between the test equipment and the OSICS DFB modular optical source under test Procedure 1 In the OSICS Mainframe install th...

Page 96: ...wavelength accuracy is the deviation between the wavelength setting and the wavelength reading provided by the wavemeter at each measurement step 7 Increment the DFB wavelength setting one wavelength...

Page 97: ...ower meter see section Preparing Performance Tests p 95 and jumper Procedure 1 Disable the DFB laser output 2 Connect the OSICS DFB module to the power meter 3 Set the OSICS DFB output power to maximu...

Page 98: ...Using the OSICS DFB Module 98 OSICS User Manual BKR TLS 50 ATN DFB ECL T100 SLD SWT TLS AG SWT APC MAIN...

Page 99: ...or also contribute to spectral purity by protecting the laser cavity from any interference that may be generated by your equipment In the ECL configuration however the dihedral rear reflector in the s...

Page 100: ...minutes warm up and apply for wavelengths not equal to any water absorption line 1 At constant temperature 2 With the high resolution option R the tuning speed is 2 5 nm s typ 3 The kinematic chain of...

Page 101: ...ion p 30 Modulation Input Connector Coaxial SMB type This connector enables you to directly modulate the laser diode chip of the module see section Setting Up Analog Modulation Using an External Sourc...

Page 102: ...OSICS Module Into the OSICS Mainframe p 23 96 pin VME Connector The rear panel of the OSICS modules interfaces with the OSICS Mainframe backplane by means of the 96 pin VME connector Opening The openi...

Page 103: ...me For laser safety reasons the light source in modules are disabled after OSICS initialization Before Starting Connect an optical device to the OSICS module see section Connecting Optical Devices to...

Page 104: ...ot set the power unit of an individual module Procedure 1 Access the ECL Unit Setup menu see section Accessing an OSICS Module Setup Menu p 33 2 Turn the rotary knob to put the cursor before the Set P...

Page 105: ...wer setting with the first digit highlighted Figure 66 ECL Unit Setup Adjust Power menu 3 Adjust the power value as follows a Turn the knob clockwise to increase the digit value or anticlockwise to de...

Page 106: ...e Set Wavelength menu appears and displays the emission wavelength or frequency Figure 67 ECL Unit Setup Set Wavelength Frequency menu 3 Modify the wavelength frequency value as follows a Turn the rot...

Page 107: ...e to increase the value or anticlockwise to decrease it and press the knob to validate the selected digit c Perform steps a and b again with the other digits to modify d Turn the rotary knob clockwise...

Page 108: ...ot need to connect any external modulation device to the OSICS system The following procedure explains how to activate the coherence control function to produce the linewidth broadening required Proce...

Page 109: ...ocedure 1 Access the ECL Unit Setup menu see section Accessing an OSICS Module Setup Menu p 33 2 Turn the rotary knob to put the cursor before the Auto peak find menu and press the knob The Auto peak...

Page 110: ...internal source Digital TTL modulation using the OSICS Mainframe internal source External modulation Digital TTL modulation using an external source connected to the OSICS Mainframe Analog modulation...

Page 111: ...ical output signal follows a pattern as shown in the following figure Figure 72 TTL Modulated Output Power Signal ECL Module Procedure Step 1 Set the module modulation source to INTERNAL 1 Access the...

Page 112: ...knob to highlight it b Turn the knob clockwise to increase the value or anticlockwise to decrease it and press the knob to validate the selected digit c Perform steps 1 and 2 again with the other dig...

Page 113: ...SICS Mainframe Synchro output connector The range of the frequency of the modulation provided by the OSICS Mainframe is defined to encompass the frequency requirements of all types of OSICS ECL module...

Page 114: ...he Modulation menu and select the Set frequency sub menu The Modulation frequency sub menu appears and displays the current selected modulation frequency value Figure 77 Main Setup Modulation Frequenc...

Page 115: ...ccess the ECL Unit Setup menu see section Accessing an OSICS Module Setup Menu p 33 2 Expand the Modulation menu and enter the Source sub menu The Modulation source sub menu appears and the cursor aut...

Page 116: ...anel see Figure 71 p 110 This allows all the modules or an external device connected to the OSICS Mainframe Synchro output connector to be modulated in a synchronous way by means of an external source...

Page 117: ...TTL signal not exceeding the maximum voltage of 5 V and repetition frequency between 50 Hz and 1 MHz The green LED located next to the Mod In connector is lit to indicate that an external signal gener...

Page 118: ...er the Control sub menu The Modulation control sub menu appears and displays the current state of the modulation control Figure 83 ECL Unit Setup Modulation Control On 3 Turn the rotary knob to put th...

Page 119: ...current Vin is the voltage applied to the SMB input Rinternal is the 50 internal impedance of your ECL module TTL modulation can also be applied directly on the module s front panel using the input S...

Page 120: ...lower than the maximum allowed current Imax indicated in the system acceptance test report The best way to fulfill the above conditions is to monitor the ECL module bias current Ibias via the rated ou...

Page 121: ...ation Source If the voltage applied to the SMB input is an AC signal with no DC component and with peak to peak amplitude is Vpp the above condition becomes Vpp 2 x Rinternal Imax Ibias Vpp 2 x Rinter...

Page 122: ...e for other devices The following procedure explains how to set the OUT 2 analog signal You can also use the OSICS Mainframe as a modulation source for external devices with the Synchro BNC output con...

Page 123: ...power POUT The scale factors for the OUT 1 signal are the following FPGA v 3 00 Laser diode current ILD 10 V 260 4 mA Optical output power POUT 10 V 15 mW The following procedure explains how to set...

Page 124: ...nding on the unit setting with a mechanical reference as explained in section Performing a Wavelength Reference Calibration p 124 then the system enters the two point wavelength frequency calibration...

Page 125: ...clockwise to put the cursor under ENTER and press the knob to validate the value The message Moving appears while the first wavelength frequency is being set The Wavelength Frequency calibration wind...

Page 126: ...e new system calibration default Before Starting Make sure you have a power meter Procedure 1 Set the ECL output power to 1 mW 2 Connect the optical output of the OSICS ECL module to a power meter 3 E...

Page 127: ...ECL Unit Setup menu is displayed The new calibration data sets the new system calibration default 9 9 4 Asking for a Factory Recalibration Subject To externally verify the performance of the OSICS re...

Page 128: ...connectors needed may vary depending on the type of equipment used and the distance between the test equipment and the OSICS ECL modular optical source under test Procedure 1 In the OSICS Mainframe i...

Page 129: ...solute wavelength accuracy is the deviation between the wavelength setting and the wavelength reading provided by the wavemeter at each measurement step 7 Increment the ECL wavelength setting one wave...

Page 130: ...ct your Yenista Optics customer support service see section Contact Information p 4 immediately 9 10 4 Validating the Side Mode Suppression Subject This procedure enables you to verify the suppression...

Page 131: ...The OSICS SLD is a broadband light source rack module designed for fiber optic component and system testing based on superluminescent light emitting diode 10 1 1 OSICS SLD Technical Specifications OS...

Page 132: ...s enabled and the power value is displayed in the System Status screen see section System Status Screen Description p 30 Optical Output Connector The standard output connector is a FC APC type connect...

Page 133: ...OSICS Module Into the OSICS Mainframe p 23 96 pin VME Connector The rear panel of the OSICS modules interfaces with the OSICS Mainframe backplane by means of the 96 pin VME connector Opening The openi...

Page 134: ...me For laser safety reasons the light source in modules are disabled after OSICS initialization Before Starting Connect an optical device to the OSICS module see section Connecting Optical Devices to...

Page 135: ...arting Set the optical power unit from the OSICS Mainframe Main Setup menu see section Selecting the Power Unit for All Installed Modules p 38 You cannot set the power unit of an individual module Pro...

Page 136: ...Using the OSICS SLD Module 136 OSICS User Manual BKR TLS 50 ATN DFB ECL T100 SLD SWT TLS AG SWT APC MAIN...

Page 137: ...d 1x4 switch configuration features one common input output channel Com and 2 or 4 output input channels Ch1 and Ch2 or Ch1 Ch2 Ch3 and Ch4 to be used sequentially The OSICS SWT module is fully bi dir...

Page 138: ...nder test are connected to the first module The output of the devices under test are connected to the second module which sequentially directs the signal to a unique measurement device Figure 97 SWT I...

Page 139: ...insertion loss is 1 4 dB for SMF and 2 0 dB for PMF 3 On the whole wavelength range 1 dB 1 5 dB Polarization Dependent Loss 2 PDL 0 1 dB PER 20 dB Repeatability 3 0 005 dB 0 01 dB Return Loss 2 55 dB...

Page 140: ...a standard input output FC APC type connector For more details on the appropriate fiber type see section OSICS SWT Technical Specifications p 139 Chn Connector and LEDs Fiber optic connector It is a s...

Page 141: ...alling an OSICS Module Into the OSICS Mainframe p 23 96 pin VME Connector The rear panel of the OSICS modules interfaces with the OSICS Mainframe backplane by means of the 96 pin VME connector Opening...

Page 142: ...rs and indicates the currently active SWT channel or output mode with a cross next to the selected channel Figure 100 SWT Unit Setup Channel Selection menu SWT 1x4 Example Screen 3 Turn the rotary kno...

Page 143: ...etup menu see section Accessing an OSICS Module Setup Menu p 33 2 Expand the Sequence Switching menu and enter the Number of Scans sub menu The sub menu appears and displays the current configured num...

Page 144: ...nob to put the cursor before the channel or mode you want to configure and press the knob to validate your selection The time setting sub menu appears Figure 102 SWT Unit Setup Sequence Switching Set...

Page 145: ...SWT Unit Setup Sequence Switching Control 3 Turn the rotary knob to put the cursor before the wanted action STOP the SWT module executes the sequence once CONTINUOUS the SWT module executes the sequen...

Page 146: ...es you want to test 2 Turn on the OSICS multifunction platform see section Turning on the OSICS Multifunction Platform and Accessing the System Status Screen p 29 3 Let the OSICS multifunction platfor...

Page 147: ...er output 4 Enable the output channel under test in our example Ch1 and record the power output value P1 and P2 provided respectively by OPM1 and OPM2 after the power reading has stabilized 5 Select d...

Page 148: ...modules in the OSICS Mainframe 2 Connect the measurement equipments as indicated on Figure 105 p 148 3 Select dBm as the power meter unit 4 Select the channel Ch1 in our example that you want to meas...

Page 149: ...higher versions OSICS SWT APC Used in Switch Mode The OSICS SWT APC module is fully bi directional you can use the module as 1 input and 2 or 4 outputs see Figure 106 p 149 or 1 output and 2 or 4 inpu...

Page 150: ...can then be sequentially measured during a specific time frame if you define one Figure 109 SWT APC Implementation Example Two Laser Sources and a Wavemeter Sequential Testing of Two or Four Devices T...

Page 151: ...Spectrum To test an optical device over a wide spectrum you must employ several tunable lasers with distinct wavelength coverage Figure 112 SWT APC Implementation Example Testing a DUT over a Wide Spe...

Page 152: ...nm 0 1 dB Repeatability 2 4 4 At constant temperature over 100 successive cycles 0 02 dB Return Loss 1 50 dB Crosstalk 2 50 dB Optical Input Output Connectors Module Front Panel FC APC narrow key Aut...

Page 153: ...ection OSICS SWT APC Technical Specifications p 152 The green LEDs indicates which channel is currently active If the channel is enabled the LED is lit and CHn is displayed in the System Status screen...

Page 154: ...ribed in section OSICS Information and Warning Markings p 19 12 2 Selecting the Operating Mode Subject You can operate the SWT APC in Switch or Full Band mode In the Unit Setup menu the Mode menu disp...

Page 155: ...appears and indicates the currently active SWT APC channel or output mode with a cross next to the selected channel Figure 114 SWT APC Unit Setup Channel Selection menu SWT APC 1x4 Example Screen 4 T...

Page 156: ...ted to the SWT APC Subject The OSICS T100 and ECL modules already installed in the Mainframe not being used by other applications can be automatically detected by the OSICS SWT APC module The automati...

Page 157: ...21 you can manually configure the OSICS T100 and ECL modules connected to your SWT APC module Before Starting Connect the wanted OSICS T100 and ECL to the input ports of the OSICS SWT APC Ch1 to Chn...

Page 158: ...d on select the symbols In the column the wavelength limits are automatically defined for OSICS ECL and T100 with version higher than 2 21 f Press the knob to validate the selected digit The following...

Page 159: ...Turn the rotary knob to put the cursor before the Optical Output DISABLED menu 3 Press the rotary knob to enable the laser of all installed modules The OSICS modules beep and the laser is enabled on a...

Page 160: ...L The power value is software limited by the SWT APC in a range between 6 99 dBm and 3 dBm Before Starting Set the optical power unit from the OSICS Mainframe Main Setup menu see section Selecting the...

Page 161: ...l Installed Modules p 39 You cannot set the spectral unit of an individual module Set the SWT APC to Full Band mode see section Selecting the Operating Mode p 154 and specify the connected modules sec...

Page 162: ...Set Step sub menu appears and displays the current value of the wavelength frequency step in nm or GHz Figure 119 SWT APC Unit Setup Set Step sub menu 3 Modify the step value as follows a Turn the ro...

Page 163: ...re Starting Set the SWT APC to Full Band mode see section Selecting the Operating Mode p 154 and specify the connected modules section Configuring the Full Band Mode p 156 Procedure 1 Access the SWT A...

Page 164: ...SWT APC Unit Setup menu see section Accessing an OSICS Module Setup Menu p 33 2 Expand the Scan menu and enter the Control sub menu Figure 120 SWT APC Unit Setup Scan Control sub menu 3 Turn the rotar...

Page 165: ...ect any external modulation device to the OSICS system The following procedure explains how to activate the coherence control function to produce the linewidth broadening required Before Starting Set...

Page 166: ...section Selecting the Operating Mode p 154 and specify the connected modules section Configuring the Full Band Mode p 156 Procedure 1 Access the SWT APC Unit Setup menu see section Accessing an OSICS...

Page 167: ...ction Selecting the Operating Mode p 154 and specify the connected modules section Configuring the Full Band Mode p 156 12 10 1 Defining the Modulation Source for All Connected T100 and ECL Modules Su...

Page 168: ...to the SWT APC To achieve this the modulation source and frequency must be set for all modules Before Starting Set the wanted modulation source for all T100 and ECL modules connected to the SWT APC as...

Page 169: ...esponding slots The channel port OUT 1 of the SWT APC provides an analog signal that you can use to monitor the module output power in real time The OUT 1 voltage is electronically linked to the photo...

Page 170: ...SWT APC modules you want to test 2 Turn on the OSICS multifunction platform see section Turning on the OSICS Multifunction Platform and Accessing the System Status Screen p 29 3 Let the OSICS multifun...

Page 171: ...aser output 4 Enable the output channel under test in our example Ch1 and record the power output value P1 and P2 provided respectively by OPM1 and OPM2 after the power reading has stabilized 5 Select...

Page 172: ...r modules in the OSICS Mainframe 2 Connect the measurement equipments as indicated on Figure 127 p 172 3 Select dBm as the power meter unit 4 Select the channel Ch1 in our example that you want to mea...

Page 173: ...a spectrally pure and truly single mode operation 13 1 1 OSICS T100 Technical Specifications T100 1310 T100 1415 T100 1520 T100 1550 T100 1575 T100 1620 Wavelength Range nm P 3 dBm 1260 1360 1360 1470...

Page 174: ...on line 1 At constant temperature 2 With the high resolution option R the tuning speed is 2 5 nm s typ 3 The kinematic chain of the laser does not allow for swept operation 4 Measured over a 0 1 nm ba...

Page 175: ...tion p 30 Modulation Input Connector Coaxial SMB type This connector enables you to directly modulate the laser diode chip of the module see section Setting Up Analog Modulation Using an External Sour...

Page 176: ...OSICS Module Into the OSICS Mainframe p 23 96 pin VME Connector The rear panel of the OSICS modules interfaces with the OSICS Mainframe backplane by means of the 96 pin VME connector Opening The openi...

Page 177: ...me For laser safety reasons the light source in modules are disabled after OSICS initialization Before Starting Connect an optical device to the OSICS module see section Connecting Optical Devices to...

Page 178: ...not set the power unit of an individual module Procedure 1 Access the T100 Unit Setup menu see section Accessing an OSICS Module Setup Menu p 33 2 Turn the rotary knob to put the cursor before the Set...

Page 179: ...wer setting with the first digit highlighted Figure 130 T100 Unit Setup Adjust Power menu 3 Adjust the power value as follows a Turn the knob clockwise to increase the digit value or anticlockwise to...

Page 180: ...etup menu see section Accessing an OSICS Module Setup Menu p 33 2 Turn the rotary knob to put the cursor before the Set f menu and press the knob The Set Wavelength menu appears and displays the emiss...

Page 181: ...ue as follows a Turn the rotary knob to put the cursor under the digit you want to modify and press the knob to highlight it b Turn the knob clockwise to increase the value or anticlockwise to decreas...

Page 182: ...not need to connect any external modulation device to the OSICS system The following procedure explains how to activate the coherence control function to produce the linewidth broadening required Proc...

Page 183: ...cedure 1 Access the T100 Unit Setup menu see section Accessing an OSICS Module Setup Menu p 33 2 Turn the rotary knob to put the cursor before the Auto peak find menu and press the knob The Auto peak...

Page 184: ...0 internal source Digital TTL modulation using the OSICS Mainframe internal source External modulation Digital TTL modulation using an external source connected to the OSICS Mainframe Analog modulatio...

Page 185: ...tical output signal follows a pattern as shown in the following figure Figure 136 TTL Modulated Output Power Signal T100 Module Procedure Step 1 Set the module modulation source to INTERNAL 1 Access t...

Page 186: ...he knob to highlight it b Turn the knob clockwise to increase the value or anticlockwise to decrease it and press the knob to validate the selected digit c Perform steps 1 and 2 again with the other d...

Page 187: ...OSICS Mainframe Synchro output connector The range of the frequency of the modulation provided by the OSICS Mainframe is defined to encompass the frequency requirements of all types of OSICS T100 modu...

Page 188: ...he Modulation menu and select the Set frequency sub menu The Modulation frequency sub menu appears and displays the current selected modulation frequency value Figure 141 Main Setup Modulation Frequen...

Page 189: ...cess the T100 Unit Setup menu see section Accessing an OSICS Module Setup Menu p 33 2 Expand the Modulation menu and enter the Source sub menu The Modulation source sub menu appears and the cursor aut...

Page 190: ...panel see Figure 135 p 184 This allows all the modules or an external device connected to the OSICS Mainframe Synchro output connector to be modulated in a synchronous way by means of an external sour...

Page 191: ...TL signal not exceeding the maximum voltage of 5 V and repetition frequency between 50 Hz and 1 MHz The green LED located next to the Mod In connector is lit to indicate that an external signal genera...

Page 192: ...er the Control sub menu The Modulation control sub menu appears and displays the current state of the modulation control Figure 147 T100 Unit Setup Modulation Control On 3 Turn the rotary knob to put...

Page 193: ...d current Vin is the voltage applied to the SMB input Rinternal is the 50 internal impedance of your T100 module TTL modulation can also be applied directly on the module s front panel using the input...

Page 194: ...lower than the maximum allowed current Imax indicated in the system acceptance test report The best way to fulfill the above conditions is to monitor the T100 module bias current Ibias via the rated...

Page 195: ...lation Source If the voltage applied to the SMB input is an AC signal with no DC component and with peak to peak amplitude is Vpp the above condition becomes Vpp 2 x Rinternal Imax Ibias Vpp 2 x Rinte...

Page 196: ...rce for other devices The following procedure explains how to set the OUT 2 analog signal You can also use the OSICS Mainframe as a modulation source for external devices with the Synchro BNC output c...

Page 197: ...t power POUT The scale factors for the OUT 1 signal are the following FPGA v 3 00 Laser diode current ILD 10 V 260 4 mA Optical output power POUT 10 V 15 mW The following procedure explains how to set...

Page 198: ...epending on the unit setting with a mechanical reference as explained in section Performing a Wavelength Reference Calibration p 198 then the system enters the two point wavelength frequency calibrati...

Page 199: ...b clockwise to put the cursor under ENTER and press the knob to validate the value The message Moving appears while the first wavelength frequency is being set The Wavelength Frequency calibration win...

Page 200: ...e new system calibration default Before Starting Make sure you have a power meter Procedure 1 Set the T100 output power to 1 mW 2 Connect the optical output of the OSICS T100 module to a power meter 3...

Page 201: ...T100 Unit Setup menu is displayed The new calibration data sets the new system calibration default 13 9 4 Asking for a Factory Recalibration Subject To externally verify the performance of the OSICS...

Page 202: ...ic connectors needed may vary depending on the type of equipment used and the distance between the test equipment and the OSICS T100 modular optical source under test Procedure 1 In the OSICS Mainfram...

Page 203: ...lute wavelength accuracy is the deviation between the wavelength setting and the wavelength reading provided by the wavemeter at each measurement step 7 Increment the T100 wavelength setting one wavel...

Page 204: ...act your Yenista Optics customer support service see section Contact Information p 4 immediately 13 10 4 Validating the Side Mode Suppression Subject This procedure enables you to verify the suppressi...

Page 205: ...14 1 1 OSICS TLS 50 Technical Specifications C band L band Number of ITU Channels 89 50 GHz spacing 93 50 GHz spacing Wavelength Range 1 196 1 to 191 7 THz 1528 77 to 1563 86 nm 191 1 to 186 5 THz 15...

Page 206: ...value is displayed in the System Status screen see section System Status Screen Description p 30 Optical Output Connector The standard output connector is a FC APC type connector For more details on t...

Page 207: ...rame p 23 96 pin VME Connector The rear panel of the OSICS modules interfaces with the OSICS Mainframe backplane by means of the 96 pin VME connector Opening The opening ensures proper flow of cooled...

Page 208: ...me For laser safety reasons the light source in modules are disabled after OSICS initialization Before Starting Connect an optical device to the OSICS module see section Connecting Optical Devices to...

Page 209: ...ss the TLS 50 Unit Setup menu see section Accessing an OSICS Module Setup Menu p 33 2 Turn the rotary knob to put the cursor before the Set Power menu and press the knob The Set Power menu appears and...

Page 210: ...or before the Set f menu and press the knob The Set f menu appears and displays the current channel and the corresponding emission wavelength or frequency Figure 158 TLS 50 Unit Setup Set Wavelength F...

Page 211: ...lows a Turn the rotary knob to put the cursor under the digit you want to modify and press the knob to highlight it b Turn the knob clockwise to increase the value or anticlockwise to decrease it and...

Page 212: ...llisecond range You can immediately use it for accurate measurements Procedure 1 Access the TLS 50 Unit Setup menu see section Accessing an OSICS Module Setup Menu p 33 2 Expand the Scan menu and ente...

Page 213: ...stem Status screen Stopping the Scan 1 Access the TLS 50 Unit Setup menu see section Accessing an OSICS Module Setup Menu p 33 2 Expand the Scan menu and enter the Control sub menu 3 Turn the rotary k...

Page 214: ...216 The shape sinusoidal or triangular SBS Waveform see section Selecting the SBS Waveform p 216 The amplitude deviation is the amplitude modulation depth in X Y 100 between 0 1 and 10 SBS AM see sec...

Page 215: ...tion mode amplitude modulation AM or frequency modulation FM Procedure 1 Access the TLS 50 Unit Setup menu see section Accessing an OSICS Module Setup Menu p 33 2 Expand the SBS Suppression menu and e...

Page 216: ...ue or anticlockwise to decrease it and press the knob to validate the selected digit c Perform steps a and b again with the other digit to modify d Turn the rotary knob clockwise to put the cursor und...

Page 217: ...rate for amplitude and frequency modulation are given in section Setting the SBS Suppression Mode p 214 Procedure 1 Access the TLS 50 Unit Setup menu see section Accessing an OSICS Module Setup Menu...

Page 218: ...ee section Accessing an OSICS Module Setup Menu p 33 2 Expand the SBS Suppression menu and enter the SBS AM sub menu The sub menu appears and displays the current amplitude deviation Figure 166 TLS 50...

Page 219: ...ion Accessing an OSICS Module Setup Menu p 33 2 Expand the SBS Suppression menu and enter the SBS On Off sub menu The sub menu appears and displays the current state of the SBS Suppression Figure 167...

Page 220: ...ment and the OSICS TLS 50 modular optical source under test Procedure 1 In the OSICS Mainframe install the TLS 50 modules you want to test 2 Turn on the OSICS multifunction platform see section Turnin...

Page 221: ...front panel 6 Compute the wavelength deviation of the TLS 50 module and check that it is not greater than 1 GHz compared with the wavelength reading of the wavemeter The absolute wavelength accuracy i...

Page 222: ...hnical Specifications and check that the TLS 50 module can deliver the desired output power at the given wavelength 7 If either of the rated output power at the wavelength range ends cannot be achieve...

Page 223: ...ng 15 1 1 OSICS TLS AG Technical Specifications C Band L Band Wide C Band Wide L Band Grid Selection Adjustable to any wavelength grid ITU T 100 GHz 50 GHz and arbitrary grid Frequency Wavelength Rang...

Page 224: ...tion System Status Screen Description p 30 SSER typ 5 60 dB RIN 6 150 dB Hz Operating Temperature Range 15 to 35 C 59 to 95 F Optical Interface FC APC connector on PMF PER 20 dB Control interface Stat...

Page 225: ...le into the OSICS Mainframe slot see section Installing an OSICS Module Into the OSICS Mainframe p 23 96 pin VME Connector The rear panel of the OSICS modules interfaces with the OSICS Mainframe backp...

Page 226: ...me For laser safety reasons the light source in modules are disabled after OSICS initialization Before Starting Connect an optical device to the OSICS module see section Connecting Optical Devices to...

Page 227: ...cted wavelength frequency is possible on a 6 GHz range with 1 MHz resolution High Resolution Mode In this mode you can directly enter the requested wavelength frequency Resolution is 1 MHz 0 01 pm Pro...

Page 228: ...a Turn the rotary knob to put the cursor under the digit you want to modify and press the knob to highlight it b Turn the knob clockwise to increase the value or anticlockwise to decrease it and press...

Page 229: ...highlight it b Turn the knob clockwise to increase the value or anticlockwise to decrease it and press the knob to validate the selected digit c Perform steps a and b again with the other digits to mo...

Page 230: ...ss the TLS AG Unit Setup menu see section Accessing an OSICS Module Setup Menu p 33 2 Turn the rotary knob to put the cursor before the Set Power menu and press the knob The Set Power menu appears and...

Page 231: ...rting Set the spectral unit from the OSICS Mainframe Main Setup menu see section Selecting the Spectral Unit for all Installed Modules p 39 You cannot set the spectral unit of an individual module If...

Page 232: ...z Procedure 1 Access the TLS AG Unit Setup menu see section Accessing an OSICS Module Setup Menu p 33 2 Expand the Step menu and enter the Set Step sub menu The Set Step sub menu appears and displays...

Page 233: ...increment is stored in the Step parameter up to the last wavelength value the upper wavelength limit you have set During each scan interval the OSICS TLS AG module scans at a selected wavelength rang...

Page 234: ...his section explains how to start stop and resume the scan Before Starting Configure the scan parameters as explained in section Setting the Scan Parameters p 233 The laser takes around 20 s to stabil...

Page 235: ...ne Tune function to directly adjust the emission wavelength or optical frequency of the TLS AG tunable laser with high sensitivity This is useful in some applications for instance in coherent applicat...

Page 236: ...ckwise to decrease it and press the knob to validate the selected digit c Perform steps a and b again with the other digits to modify d Turn the rotary knob clockwise to put the cursor under ENTER and...

Page 237: ...optical fiber On OSICS TLS AG the laser is modulated with a single frequency dither signal of 20 8 kHz You can select the optical frequency deviation from 0 to 1 GHz Procedure 1 Access the TLS AG Uni...

Page 238: ...menu is automatically displayed 15 6 3 Disabling the Frequency Control Dither Function Subject The OSICS TLS AG tunable laser uses a dither tone at 888 Hz used to lock the emission wavelength onto its...

Page 239: ...the wanted setting and press it to validate your selection The function is deactivated and the Unit Setup menu is automatically displayed After warm up it takes around 10 seconds before the disable f...

Page 240: ...ment and the OSICS TLS AG modular optical source under test Procedure 1 In the OSICS Mainframe install the TLS AG modules you want to test 2 Turn on the OSICS multifunction platform see section Turnin...

Page 241: ...es up to 20 seconds to be stabilized 6 Compute the wavelength deviation of the TLS AG module and check that it is not greater than 1 GHz compared with the wavelength reading of the wavemeter The absol...

Page 242: ...hnical Specifications and check that the TLS AG module can deliver the desired output power at the given wavelength 7 If either of the rated output power at the wavelength range ends cannot be achieve...

Page 243: ...out applying excessive force onto it 16 2 Cleaning Optical Connectors Subject To ensure measurement accuracy and prevent loss of optical power you must verify that optical connectors are clean every t...

Page 244: ...3 Replacing the Line Fuse Before Starting Unplug the power cable Make sure you have the following material Appropriate power fuse see section OSICS Mainframe Technical Specifications p 16 Small flat b...

Page 245: ...e can no longer communicate with modules Reset the system as follows 1 Turn off the OSICS Mainframe power by pressing the on off button located on the front panel 2 Turn on the OSICS Mainframe by pres...

Page 246: ...eout The maximum time for the system to try moving the module internal mechanical components has been reached Turn off and on the OSICS multifunction platform to reset the module T100 ECL Switch error...

Page 247: ...d with the WEEE symbol for recycling This means that you must not discard the product with domestic household waste At the end of the product s useful life please contact your local Yenista Optics rep...

Page 248: ...Certification and Compliance 248 OSICS User Manual...

Page 249: ...Modulation Source Mainframe Figure 52 81 DFB Unit Setup Power calibration Figure 63 93 DFB Unit Setup Set Frequency Figure 44 76 DFB Unit Setup Set Power menu Figure 37 70 DFB Unit Setup Set Step sub...

Page 250: ...76 114 Main Setup New Password Figure 11 35 Main Setup Power reference sub menu Figure 13 39 Main Setup Save configuration Figure 20 47 Main Setup Save configuration Figure 21 48 Main Setup Set unit d...

Page 251: ...SWT Reverse Configuration Figure 95 137 SWT Standard Configuration Figure 94 137 SWT Unit Setup Channel Selection menu SWT 1x4 Example Screen Figure 100 142 SWT Unit Setup Sequence Switching Control F...

Page 252: ...Fine Tune sub menu Figure 176 236 TLS AG Unit Setup Frequency Dither Control sub menu Figure 179 239 TLS AG Unit Setup Grid First Channel sub menu Figure 170 228 TLS AG Unit Setup Grid Spacing sub men...

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