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Содержание E5970A

Страница 1: ...User s Guide HP E5970A Optical Power Meter SERIAL NUMBERS This manual applies to all instruments HP Part No E5970 91011 Printed in the Federal Republic of Germany First Edition E0295 ...

Страница 2: ...cations at the time of merchantability andfitnessJior a with an instrument will its shipment from the factory particular purpose programming instructions when properly installed on that instrument Hewlett Packard further certifies Hewlett Packard shall not be liable HP does not warrant that the that its calibration measurements for errors contained herein or for operation of the instrument are tra...

Страница 3: ...ng power Comply with the installation section Additionally the following shall be observed Do not remove instrument covers when operating rn Do not operate the instrument in the presence of flammable gases or fumes Operation of any electrical instrument in such an environment constitutes a definite safety hazard Do not install substitute parts or perform any unauthorized modification to the instru...

Страница 4: ...gn denotes a hazard It calls attention to an operating procedure practice or the like which if not correctly performed or adhered to could result in damage to or destruction of part or all of the equipment Do not proceed beyond a CAUTION sign until the indicated conditions are fully understood and met Introduction This guide has two sections rn How to operate the instrument chapters 1 and 2 and Su...

Страница 5: ...alue on the Display Releasing the Value on the Display Measuring a Reference Entering or Editing the Reference Example Making a Loss and Power Measurement 2 Identifying Modulated Light Identifying Fibers in a Cable 2 1 Example Identifying the Modulation Frequency 2 2 A Preparing for Operation Initial Inspection A l Power Supply Requirements A 1 Changing the Batteries A 2 Operating and Storage Envi...

Страница 6: ...ent D 1 Performance Test D 2 General D 2 Linearity Test D 2 Uncertainty Test D 4 PC The Wavelength Corrected Power Level D 7 E Cleaning Procedures The Cleaning Kit E 1 Other Cleaning Tools E 2 Preserving Connectors E 3 Cleaning Instrument Housings E 4 Cleaning Procedures E 4 Cleaning Cable Connectors E 4 Cleaning Connector Adapters E 5 Cleaning Connector Interfaces E 5 Cleaning Bare Fiber Adapters...

Страница 7: ...the Power Meter On Permanently To switch the power meter on 1 Press I E5910A OPTICALPOWW METER 800 1800 run I The Power Meter Display at Power On The whole display except the bottom right corner is filled for approximat ely2 seconds then the number 8B is displayed for approximately 2 seconds after which the power meter is ready to use If the power meter does not switch on check the battery see Cha...

Страница 8: ...e number 8888 is displayed for approximately 2 seconds after which the power meter is ready to use If the power meter does not switch on check the battery see Changing the Batteries in Appendix A for information on accessing and changing the battery Zeroing the Instrument You do not have to zero the instrument The instrument zeros itself approximately 20 seconds after you switch it on and then app...

Страница 9: ...ff To switch the power meter off 1 Press 1 Configuring the Wavelength The wavelength is shown at the bottom of the display in the middle There are four calibrated wavelengths that you can choose from 8 850nm 1300nm 1310nm 1550nm To change the wavelength 1 Press repeatedly until the wavelength you want is shown The Sel X Key and the Wavelength Display Making Measurements 1 3 ...

Страница 10: ... Reference for information about taking and editing references Is the wavelength shown on the display alternating with HOL If it is 1 Press m 2 Change the wavelength as described above Measuring Absolute Power The power measured at the optical input is shown by the large digits on the display with the units to the right of the measurement There are three units that you can choose from dBm which is...

Страница 11: ...lue on the Display The value for the power on the display is updated approximately every half a second To hold the value I Press Holdl The Hold Key and the Hold Indicator While the value is being held the indicator HCiL is shown alternating with the wavelength in the middle at the bottom of the display Releasing the Value on the Display If a power value is being held on the display you can release...

Страница 12: ...bsolute power measurements and is described in Measuring Absolute Power and dB which is the unit for relative power measurements To select the relative power measurement and the unit 1 Press j repeatedly until the units at the right of the display are IJE The dB Ref Key and the Power Unit OR Make a reference measurement see Measuring a Reference If you cannot change to measuring the relative power...

Страница 13: ...to the point at which the reference is to be measured 2 Press I If you cannot measure a reference check the following Is REF shown at the top left of the display If it is 1 Press KT 2 Measure the reference as described above w Is the wavelength shown in the middle at the bottom of the display alternating with HIIIL If it is 1 Press lHold 2 Measure the reference as described above Entering or Editi...

Страница 14: ...isplay alternating with HOL If it is 1 Press 2 Measure the reference as described above Example Making a Loss and Power Measurement This example describes how to measure the power through and the loss due to a badly made connection In this example we use rn The HP E5970A Optical Power Meter with a HP 81005AA HMS 10 Adapter A HP E5974A Dual Laser Source with a HP 81005AI HMS 10 Adapter rn Two HP 81...

Страница 15: ... the reference a Press c j 3 Make the DUT a Separate the two connectors in the through adapter HP 81000UM 4 Measure the loss a Read the value for the loss in dB on the display of the power meter 5 Measuring the power through the connector pair a Press c 1 b Read the value for the power in dBm on the display of the power meter c Press CdBm W d Read the value for the power in Watt on the display of ...

Страница 16: ......

Страница 17: ... the power meter are available from the HP E5972A and HP E5974A sources except for the 330Hz modulation By connecting one or more sources you can use the power meter to identify fibers at the far end of the cable Note If you are not making absolute power measurements for example where you only need to identify the modulation frequency it is not necessary to set the value for the wavelength If the ...

Страница 18: ... 81005AA HMS 10 Adapter rn A HP E5972A LED Source with a HP 81005AA HMS 10 Adapter A HP 81101AC Diamond HMS 10MP to HMS fOMP Patchcord 1 Set up the equipment as shown in the diagram Set Up for Power and Loss Measurement Example 2 Switch on both the instruments 3 Press on the source Note that the modulation indicator on the power meter shows 270Hz after a slight delay 4 Press on the source Note tha...

Страница 19: ...eration of the instrument If the contents are incomplete mechanical damage or defect is apparent or if an instrument does not pass the operat or s checks notify the nearest Hewlett Packard office Power Supply Requirements The instrument is powered by t wo 1 5V dry batteries Mignon AA size for an operating period of approximately 36 hours or two 1 2V rechargeable batteries for an operating period o...

Страница 20: ... of the instrument The Thumbscrews on the Rear of the Instrument 2 Remove the cover Removing the Rear Cover 3 Remove the batteries 4 Making sure that the polarity is correct it is shown on the bottom of the battery compartment insert the new batteries 5 Put the cover back on 6 Tighten the thumbscrews with your fingers A 2 Preparing for Operation ...

Страница 21: ...ld be protected from temperature extremes and changes in temperature that may cause condensation within it The storage and operating temperatures are given below Operating Temperature Range 1O C to 55 C Storage Temperature Range 40 to 70 C Humidity The operating humidity for the instrument is 595 Optical Input The connector adapters and accessories listed in Connector Adaptersn in Appendix B are u...

Страница 22: ...r 2 Carefully place the adapter onto the photodetector 3 Tighten the thumbscrews with your fingers Removing a Connector Adapter Warning Be careful not to touch the photodetector or its glass cover while removing the adapter Any contact with the photodetector could dirty or damage it To remove the adapter 1 Loosen the thumbscrews 2 Remove the adapter from the photodetector 3 Cover the photodetector...

Страница 23: ...ingers 2 Insert the bare fiber into the connector a Remove approximately lOmm of the secondary coating of the fiber b Strip away a few millimeters from the end of the fiber using a fiber cleaver c Use the adjusting screw to lift the clamping plate of the connector The Clamping Plate d Open the connector e Insert the fiber into the notch so that the secondary coating section lies in the large V not...

Страница 24: ...y close the connector making sure that the fiber does not move h Hold the connector closed and gently pull back the end of the connector until it is even with the end of the connector 3 Insert the connector into the adapter Note Make sure the instrument does not move or the fiber is not disturbed while you are measuring A 6 Preparing for Operation ...

Страница 25: ...rcial Calibration Report Option UKG AC Adapter HP E5974A only Product Number Option Number Region HP E5974A 001 U S HP E5974A 002 Europe HP E5974A 003 U K HP E5974A 004 Australia If an applicable A C adapter is not listed above you can use an AC adapter which satisfies the following specifications Voltage 9 f l V DC Current 5150mA Plug tube jack inside diameter 1 35mm outside diameter 3 7mm jack l...

Страница 26: ...1005FA DIN 47256 Ada terHP 81005SA I ST Adapter HP 81005VA Biconic Adapter HP 81005WA SMA Adapter HP 81005JA Bare Fiber Adapter HP 81005BA Connector Adapters for the HP E5974A Dual Laser Source Description Product Number HMS 10 Adapter HP 81005AI FCIPC Adapter HP 81005FI DIN 47256 Adapter HP 81005SI ST Adapter HP 81005VI Biconic Adapter HP 81005WI B 2 Ordering Information ...

Страница 27: ...interfaces and patchcords connectors and patchcords must be absolutely clean and undamaged Total Uncertainty The inaccuracy in measuring any power level within the specifled range and specified conditions assuming specified HP connector interfaces and patchcords connectors and patchcords must be absolutely clean and undamaged Performance Specifications Specifications describe the instrument s warr...

Страница 28: ...erence Optical Input Applicable Fiber Type C 2 Specifications Value PERManent Operation Low BATtery Non Contact Removable Connector Adapters 91125pm to 50 125pm Operating Time typical 36 hours 12 hours for rechargeable batteries Power Level 2OdBm Continuous Wave Wavelength 1310nmf2nm Ambient Temperature 23 Cf3K Relative Humidity 45 to 75 9 125 1m SM fiber HPIHMS 10 Connector within 2 years L21 Wav...

Страница 29: ...Bm for 850nm Detected frequencies are 270Hz 330Hz IkHz and 2kHz Reference value is presettable from 30 to 80dBm Each calaibrated wavelength has its own reference memory Display content can be transferred to reference memory Typical Spectral Responsivity TypicalSpectral Responsivity 8 L 1 8M 900 1000 1100 1200 1300 1400 1502 1603 850 950 1050 1150 1250 1350 1450 1550 Wavelength in nm Specifications...

Страница 30: ...D 3 7 1 9 x7 7 500g approx Operating Temperature 10 to 55OC I Storage Temperature 40 to 70 C Relative Humidity non condensing Recommended Recalibration Period 2 years Electromagnetic Compatibility according to EN 50 081 1 EN 50 082 1 I The Auto Off mode can be disabled The time given is after power on L21 Including batteries and connector adapter C 4 Specifications ...

Страница 31: ...ommended Model Required Characteristic Lightwave Multimeter 1 HP 8163A Optical Head Interface Module 1 HP 81533B Optical Detector Head 1 HP81620A C01 Optical Detector Head 1 HI 81524A C01 Laser Source 860 nm 1 HP 81561MM 860f 10 nm short term stability f0 01dB Laser Source 131011560nm 1 HP 81664SM 1310 10nm f 2nm 1560510nm short term stability f0 006dB Optical attenuator 860 nrn Optical attenuator...

Страница 32: ...e other tests give the correct results 1 Set up and switch on the equipment a k e sure that all the connectors are clean Connect up the equipment as shown in the figure HP 8lOOOAA Test Setup for the Reference Measurement 1310 1550nm Switch on the lightwave multimeter and the attenuator and leave them to warm up Switch on the E5970A DUT holding the ONIOFF key until PERPI is shown on the display Mak...

Страница 33: ...he 8153A i Note the setting of the 8156A for setting 2 in the test report b On 8156A set attenuation to give 8 00 dB on the 8153A display i Note the setting of the 8156A for setting 3 in the test report c On 8156A set attenuation to give 14 00 dB on the 8153A display i Note the setting of the 8156A for setting 4 in the test report d On 8156A set attenuation to give 33 00 dB on the 8153A display i ...

Страница 34: ...t fails this test fails it needs to be readjusted This can only be done at a Hewlett Packard Lightwave Service Center Uncertainty st 1 Make sure that you satisfy the environmental conditions ambient temperature 23OCA3K relative humidity 45 to 75 D 2 Make sure all your connectors are clean 3 Switch on the instruments a Switch on the E5970A DUT for permanet operation by holding the ON OFF key for mo...

Страница 35: ...e laser source in the test report e Set the power meter and the attenuator to the wavelength of the laser source f Enable the laser source and the attenuator output 5 Make the reference measurement a Change the attenuation of the attenuator until the optical power meter displays 3 00dBm Note In some cases the laser source will not be powerful enough to 3 give 3 00dBm In such a case set the attenua...

Страница 36: ...ower meter displays 50 00dBm i Note the setting of the attenuator for setting 4 in the test report 6 Measure the DUT a Make sure the E5970A DUT has warmed up the E5970A has warmed up after it performs its first zero operation b Connect the attenuator output cable to the DUT as shown in the figure please note that the setup is different for 850nm DUT t Setup for the Uncertainty Test DUT Measurement...

Страница 37: ...5nm and the wavelength to be tested is 1310nm then this is wit hin 2nm and no correction is necessary However if the wavelength to be tested is 1300nm this is outside the 12nm window and correction is necessary The correction depends on the wavelength tested and is given in the following equations where PCis the wavelength corrected power level P is the measured power level A is the wavelength of ...

Страница 38: ...ate 1 Lightwave Multimeter HP 8153A 2 Optical Head Interface Module HP 81533B 3 Optical Head HP 81520A KO1 4 Optical Head HP 81524A KO1 5 Laser Source 850nm HP 81551MM 6 Laser Source 1310 1550nm HP 81554SM 7 Optical Attenutor 850nm 8 Optical Attenutor 131011550nm HP 8156A lo1 9 Patchcord HMS 101HMS 10 9150pm HP 81101AC 10 Patchcord HMS 101HMS 10 501125pm HP 81501AC 11 Connector interface HP 81000A...

Страница 39: ...0A Setting Number 1 rest Description performed at 1310nm Linearity Reference Attenuator DUT 8153A Display Setting E5970A Display Disp Refj CDisp Ref Minimun Spec Date Result Page 2 of 5 Reference DLTT Maximum spec PerformanceTest 0 9 ...

Страница 40: ...e Attenuator P 8153A Display Setting E5970A Display E5970A Optical Power Meter No Date For 1308nm A 1312nm 20 00dBm dB I Measurement uncertainty 1 dB dB I Maximum Spec lkst Description I D I 1 I f Atest 2 nm A Atest 2 nm PC Pm Atest 1O nm A Atest 2 nmor Atest 2 nm ASK Atest 10 nm PC Pm 0 0026dBlnm x Asrc At t nm D 10 PerformanceTest Minimum Spec Result ...

Страница 41: ...Page 4 of 5 E5970A Optical Power Meter No Date Measurement Uncertainty I dB bst Description Jncertainty bst Wavelengths 1550nm Source Wavelength A n m Performance Test D 11 Reference Attenuator 8153A Display Setting Minimum Spec PC P E5970A Display Result Maximum Spec ...

Страница 42: ...er rest Description IMinimum I IMaximum Jncertainty rest Wavelength 850nm Source Wavelength A n m Spec Reference Attenuator P 8153A Display Setting E5970A Display Measurement Uncertainty Result ID t 845nm A 855nm P C P 840nm A 845nm or 855nm A 860nm PC Pm 0 02dBlnm x A AteSt nm Spec D 12 Performance Test ...

Страница 43: ...ermarkets or pharmacys Note If you are cleaning connector interfaces or adapters the diameter of the cotton swab is important Cotton swabs for babys normally have a smaller diameter Caution m Do not use foam swabs as these can leave filmy deposits on the surface you are cleaning Store your cotton swabs carefully and never reuse them Dust and dirt from the air or from previous cleaning can scratch ...

Страница 44: ...epropellant for the sake of the environment Other Cleaning Tools To examine devices you also require Microscope Ultrasonic bath Premoistened cleaning wipes Select a microscope with a magnification range of between 50X and 300X These should be available from photographic stores or laboratory suppliers Ensure that the light source of the microscope is flexible This helps you to examine your device c...

Страница 45: ...r an adapter make sure that the fiber end does not touch the outside of the mating connector or adapter Otherwise you will rub the fiber end against an unsuitable surface producing scratches and d m deposlts on the surface of your fiber Be careful when replacing dust caps after use Do not press the bottom of the cap onto the fiber as any dust in the cap can scratch or dirty your fiber surface When...

Страница 46: ...polish the connector This depends on the degree of dirtiness or the depth of the scratches This is a difficult procedure and should only be done by skilled personal and as a last resort as it wears out your connector Warning Never look into the end of an optical cable that is connected to an active source E To assess the projection of the emitted light beam you can use an infrared sensor card Hold...

Страница 47: ...procedure particularly when there is greasy dirt on the adapter Stubborn Dirt 1 Moisten a new cotton swab with isopropyl alcohol 2 Clean the adapter by rubbing the cotton swab over the surface using a small circular movement 3 Take a new dry soft tissue and remove the alcohol diisolved sediment and dust by rubbing gently over the surface using a small circular movement 4 Blow away any remaining li...

Страница 48: ...hen dirty the surface of an inserted fiber Preferred Blow away any dust or dirt with compressed air Procedure Procedure for Use this procedure particularly when there is greasy dirt on the adapter Stubborn Dirt Caution Be careful when using pipe cleaners as the core and the bristles of the pipe cleaner are hard and can damage the adapter Cleaning Bare Clean the adapter by pushing and pulling a new...

Страница 49: ...sible as a small circular spot Preferred 1 Clean the interface by rubbing a new dry cotton swab over the surface Procedure using a small circular movement 2 Blow away any remaining lint with compressed air Procedure for Use this procedure particularly when there is greasy dirt on the interface Stubborn Dirt 1 Moisten a new cotton swab with isopropyl alcohol 2 Clean the interface by rubbing the cot...

Страница 50: ...the difficulty of cleaning out any dirt that is washed to the edge of the interface 1 Moisten a new cotton swab with isopropyl alcohol 2 Clean the interface by rubbing the cotton swab over the surface using a small circular movement 3 ke a new dry soft tissue and remove the alcohol dissolved sediment and dust by rubbing gently over the surface using a small circular movement 4 Blow away any remain...

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