Keysight (Agilent) 81536A Users Guide

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

Control Serial Number: Edition 2 applies directly 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

Safety Considerations

Before operation, you should review the instrument and manual, including the

red safety page, for safety markings and instructions.You must follow these to

ensure safe operation and to maintain the instrument in safe condition.

Initial Inspection

Warning

Power Requirements

The HP 81536A will operate when installed into the HP 8153A Optical

Multimeter mainframe.

Input/Output Signals

Caution

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.).

A maximum of 15V can be applied as an external voltage to any

BNC connectors.

iii

Contents

C. HP 81536A Specications

Supplementary Performance Characteristics . . . . . . . . . . . C-3

Analog output: ...... ...... ...... ..... C-3

D. HP 81536A Performance Tests

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . .

Equipment Required . . . . . . . . . . . . . . . . . . . . .

Test Record .......................... D-2

Test Failure .......................... D-3

Instrument Specication ...... ...... ...... .. D-3

Performance Test ........ ...... ...... ... D-3

Accuracy 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 interface . . . . E-7

Light dirt .. ...... ...... ...... ..... E-7

Heavy dirt ........................ E-7

D-1

D-1

Index

Contents-1

Figures

D-1. Accuracy and Linearity Test Setup .............. D-4

D-2. Addition of results (example) . . . . . . . . . . . . . . . . . D-7

Contents-2

C

HP 81536A Specications

Specications 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, these performance

specications apply only to this module.You should insert these pages into the

appropriate section of the manual.

C

HP 81536A Specications C-1

C

HP 81536A Specications

Sensor Element

Wavelength range

Power range

InGaAs

800-1700nm

+3 to -70dBm

Display resolution

dBm, dB 0.001

0.0001 on printout

Watt 0.01 to 10

(depending on power range)

Applicable ber type

9/125m - 100/140m, NA0.3

Uncertainty (Accuracy)62.5% (1000-1650nm)

Total Uncertainty

65%6

50pW (1000-1650nm)

Linearity

18Cto28C const. temp60.015dB630pW

0Cto55C const. temp60.05dB650pW

Noise

<

50pW (1200-1600nm)

peak-peak, avg. time 1sec

[1]

[2]

Dimensions

Weight

Recalibration period

Warmup time

75mm H, 32mm W, 335mm D (2.8"2

1.3"2

net 0.6kg (1.3lbs), shipping 1kg (2.2lbs)

2 years

20 min.

The display may vary by61 count.

Information on the traceability of power meters is available on request

[1] at the following reference conditions:

Power level 10W (-20dBm), Continuous Wave (CW).

Fiber 50m graded index, NA=0.2, fully excited.

C-2 HP 81536A Specications

13.2")

Ambient temperature 23C65K.

Connector Diamond HMS-10/HP.

At day of calibration (add 0.3% for aging over one year, add 0.6% over

two years).

Spectral width of source<10nm.

[2] at the following operating conditions:

Fiber50m, NA0.2.

For NA>0.2 add 1%.

Ambient temperature 0 to 55C, non-condensing.

Within 1 year after calibration, add 0.3% for second year.

For Biconic Connector add61%.

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.

C

Analog output:

Bandwidth:DC,300 to 400Hz, depending on range and sensor module.

Output voltage: 0 to 2V into open.

Output impedance: 600 typical.

Max. input voltage:610V.

HP 81536A Specications C-3