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HP HP 81536A User Manual Download Page 19

D

P

erformance

T

est

for

the

HP

81536A

P

age

2

of

4

T

est

Equipment

Used:

Description

Model

No

.

Trace

No

.

Cal.

Due

Date

1.

Lightwave

Multimeter

(Std.)

HP

8153A

2.

Opt.

Head

Interface

Module

HP

81533A

3.

Optical

Head

HP

81524A

4a1.

CW

Laser

Source

HP

81552SM

4a2.

CW

Laser

Source

HP

81553SM

4b

.

CW

Laser

Source

HP

81554SM

5.

Optical

Attenuator

HP

8156A

Option

101

6.

Lightwave

Multimeter

(DUT)

HP

8153A

7.

Connector

Interface

HP

81000AI

N/A

N/A

8.

Connector

A

dapter

HP

81000AA

N/A

N/A

9.

Singlemode

Fiber

(2ea)

HP

81101A

C

N/A

N/A

12.

13.

14.

15.

16.

17.

18.

HP

81536A

P

erformance

T

ests

D-9

Summary of Contents for HP 81536A

Page 1: ...User s Guide HP 81536A Sensor Module SERIAL NUMBERS This manual applies to all instruments ABCDE HP Part No 81536 90011 Printed in Germany Second Edition E0796 ...

Page 2: ...ectly to all instruments Edition 1 1st May 1990 81536 90011 E0590 1st December 1990 81536 90011 E1290 Edition 2 1st April 1992 81536 90011 E0492 1st March 1993 81536 90011 E0393 1st December 1994 81536 90011 E1294 1st July 1996 81536 90011 E0796 ...

Page 3: ...t in safe condition Initial Inspection Warning To avoid hazardous electrical shock do not perform electrical tests when there are signs of shipping damage to any portion of the outer enclosure covers panels etc Power Requirements The HP 81536A will operate when installed into the HP 8153A Optical Multimeter mainframe Input Output Signals Caution A maximum of 15V can be applied as an external volta...

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Page 5: ... and Linearity Test D 4 Test Setup D 4 I Accuracy Test D 5 II Linearity Test D 5 III Noise Test D 7 E Cleaning Procedures The Cleaning Kit E 1 Other Cleaning Tools E 3 Preserving Connectors E 4 Cleaning Instrument Housings E 4 Correct Cleaning Procedure E 5 Cleaning Cable Connectors E 5 Cleaning Connector Adapters E 6 Cleaning Connector Interfaces E 6 How to clean instruments with a recessed lens ...

Page 6: ...Figures D 1 Accuracy and Linearity Test Setup D 4 D 2 Addition of results example D 7 Contents 2 ...

Page 7: ...ntary performance characteristics describe the instrument s non warranted typical performance Because of the modular nature of the instrument these performance speci cations apply only to this module You should insert these pages into the appropriate section of the manual HP 81536A Speci cations C 1 ...

Page 8: ...ity 18 C to 28 C const temp 60 015dB630pW 0 C to 55 C const temp 60 05dB650pW Noise 50pW 1200 1600nm peak peak avg time 1sec Dimensions 75mm H 32mm W 335mm D 2 8 21 3 213 2 Weight net 0 6kg 1 3lbs shipping 1kg 2 2lbs Recalibration period 2 years Warmup time 20 min The display may vary by 61 count Information on the traceability of power meters is available on request 1 at the following reference c...

Page 9: ...densing Within 1 year after calibration add 0 3 for second year For Biconic Connector add 61 Supplementary Performance Characteristics Add 1 to total uncertainty for the full wavelength range Outside the speci ed wavelength range the noise increases by up to 5 times the value shown above Analog output Bandwidth DC 300 to 400Hz depending on range and sensor module Output voltage 0 to 2V into open O...

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Page 11: ...be performed without access to the interior of the instrument The test equipment given corresponds to tests carried out with Diamond HMS 10 HP conectors Equipment Required Equipment required for the performance test is listed in the table below Any equipment which satis es the critical speci cations of the equipment given in the table may be substituted for the recommended models HP 81536A Perform...

Page 12: ...01 Singlemode Fiber HP 81101AC 2ea Plastic Cap 5040 9351 2ea Test Record Results of the performance test may be tabulated on the Test Record provided at the end of the test procedures It is recommended that you ll out the Test Record and refer to it while doing the test Since the test limits and setup information are printed on the Test Record for easy reference the record can also be used as an a...

Page 13: ...nufacturing changes design or traceability to the National Institute of Standards and Technology NIST will be covered in a manual change supplement or revised manual Such speci cations supercede any that were previously published Performance Test The performance test given in this section includes the Accuracy Test the Linearity Test and the Noise Test Perform each step in the order given using th...

Page 14: ...e table and that both the optical head and the DUT are close together so that minimum cable movement is required when connecting the cable to the head or to the DUT Figure D 1 Accuracy and Linearity Test Setup 3 Turn the instruments on enable the laser source and allow the instruments to warm up for at least 20 minutes Note The linearity test must only be performed at either 1300nm or 1550nm The a...

Page 15: ...T display and note the result in the test record 6 Repeat steps 1 to 5 at the second wavelength with the corresponding source II Linearity Test 1 Make sure that the HP 8156A output is disabled ZERO the DUT 2 Enable the HP 8156A output 3 On the DUT switch o autoranging and select the 20dBm range Set the display to show results in dBm 4 Alter the attenuation until the DUT displays 17 4dBm 5 Press 4D...

Page 16: ...dBm 20dBm 17 4 Disp Ref 10dBm 0 004 R1 10dBm 7 4 Disp Ref 0dBm 0 008 R2 20dBm 27 4 Disp Ref 30dBm 0 008 R3 Example Calculated Results for the Linearity Test Test Minimum Maximum Measurement No Test Description Spec Result Spec Uncertainty Non Linearity Range Formula 0dBm R1 R2 0 015dB 0 012dB 0 015dB 60 006dB 10dBm R1 0 015dB 0 004dB 0 015dB 60 006dB 20dBm 0 000dB 60 00 30dBm R3 0 015dB 0 008dB 0 ...

Page 17: ... and display in Watts Set the averaging time to 1s Press 4Zero5 Select the MENU mode Press 4Record5 to select Stability Press 4Edit5 and select the T_TOTAL parameter Set T_TOTAL to 1 minute Press 4Edit5 and then 4Exec5 to run the noise measurement When the test has completed press 4More5 to select the SHOW application Press 4Edit5 and then 4Next5 4Prev5 to display the DIFF result Note the DIFF res...

Page 18: ... 81536A Page 1 of 4 Test Facility Report No Date Customer Tested By Model HP81536A Sensor Module Serial No Ambient temperature C Options Relative humidity Firmware Rev Line frequency Hz Special Notes D 8 HP 81536A Performance Tests ...

Page 19: ...HP 81533A 3 Optical Head HP 81524A 4a1 CW Laser Source HP 81552SM 4a2 CW Laser Source HP 81553SM 4b CW Laser Source HP 81554SM 5 Optical Attenuator HP 8156A Option 101 6 Lightwave Multimeter DUT HP 8153A 7 Connector Interface HP 81000AI N A N A 8 Connector Adapter HP 81000AA N A N A 9 Singlemode Fiber 2ea HP 81101AC N A N A 12 13 14 15 16 17 18 HP 81536A Performance Tests D 9 ...

Page 20: ...ent No Test Description Spec Result Spec Uncertainty I Accuracy Test W measured at nm Output Power 9 72 W 10 28 W 62 measured at nm Output Power 9 72 W 10 28 W 62 II Linearity Test dB Range Power dBm 20dBm 17 4 Disp Ref 10dBm R1 10dBm 7 4 Disp Ref 0dBm R2 20dBm 27 4 Disp Ref 30dBm R3 D 10 HP 81536A Performance Tests ...

Page 21: ... Minimum Maximum Measurement No Test Description Spec Result Spec Uncertainty Non Linearity Range Formula 0dBm R1 R2 0 015dB dB 0 015dB 60 006dB 10dBm R1 0 015dB dB 0 015dB 60 006dB 20dBm 0 000dB 0 00 30dBm R3 0 015dB dB 0 015dB 60 006dB III Noise Test pW 50pW HP 81536A Performance Tests D 11 ...

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Page 23: ...rkets or pharmacies Note If you are cleaning connector interfaces or adapters the diameter of the cotton swab is important Cotton swabs for babies normally have a smaller diameter Caution Do not use foam swabs as these can leave lmy 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 or dir...

Page 24: ...tial that your compressed air is free of dust water and oil Only use clean dry air If you do not it can lead to lmy deposits or scratches When using compressed air from a can Hold the can upright A slant can cause propellant to escape with the compressed air and dirty your optical device Spray the rst couple of seconds into the air as the rst stream of compressed air can contain condensation or pr...

Page 25: ...orrode or be damaged Do not use hot water as this can lead to mechanical stress that can damage your optical device Ensure that your liquid soap has no abrasive properties or perfume in it as these can scratch or damage your optical device Do not use normal washing up liquid as it can leave behind an iridescent lm Premoistened cleaning wipes These are available from HP The part number is HP 92193N...

Page 26: ...back on or close the shutter cap if the equipment is not going to be used immediately Keep the caps on the equipment always when it is not in use All of Hewlett Packard s lightwave instruments and accessories are shipped with either laser shutter caps or dust caps If you need additional or replacement dust caps contact your Hewlett Packard sales o ce Immersion Oil and Other Index Matching Compound...

Page 27: ...t beam you can use an infrared sensor card Hold the card approximately 5 cm from the output of the connector The invisible emitted light is projected onto the card and becomes visible as a small circular spot Preferred Procedure 1 Clean the connector by rubbing a new dry cotton swab over the surface using a small circular movement 2 Blow away any remaining lint with compressed air Procedure for St...

Page 28: ...as the core and the bristles of the pipe cleaner are hard and can damage the interface Do not use pipe cleaners on optical head adapters as the hard core of normal pipe cleaners can damage the bottom of an adapter Preferred Procedure 1 Clean the interface by pushing and pulling a new dry pipe cleaner into the opening Rotate the pipe cleaner slowly as you do this 2 Then clean the interface by rubbi...

Page 29: ...l should only be used if there is fat on the lens In this case choose a new swab and moisten it with alcohol Remove the dirt by gently rotating the swab using light pressure Then select a fresh dry swab to wipe away the alcohol Blow away any remaining lament with compressed air Caution Do not press the swabs too hard onto the optical surface of your device as this may produce scratches and your re...

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