Keysight (Agilent) 83481A User Manual

User's

Guide

Agilent

83481A

Optical/Electrical

Plug-In Module

Agilent

Printed

Notice

without

with

warranties

T

echnologies

part

in

.

The

notice

regard

US

of

consequential

of

this

material.

number:

A

April

83481-90021

2000

information

.

to

Agilent

this

T

material,

merchantability

shall

not

be

damages

in

contained

echnologies

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and

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liable

for

connection

in

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makes

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errors

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for

a

particular

contained

the

furnishing,

is

subject

to

,

herein

to

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the

implied

purpose

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for

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incidental or

performance

Agilent

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Restricted

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Rights

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T

echnical

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DOD

Computer

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Use

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Computer

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Restricted

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(c)

ARS

(2) of

.

(1)

(ii)

the

for

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

Copyright Agilent T

echnologies 2000

All Rights Reserved. Reproduction, adaptation, or translation without prior

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Certication

Agilent

at

certies

National

the

International

Technologies

the time

of

shipment

that its

Institute of

Institute's calibration

Standards

certies

from

that

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this

factory

product

calibration measurements

Standards and

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Organization

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echnology

and

to

members

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its

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echnologies

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further

United

States

by

of

other

iii

W

arranty

This

Agilent T

material

During

repair

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or warranty

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charges

charges

charges

another

and workmanship

the warranty

or replace

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echnologies

products which

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Ex

THE

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warrant that

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be uninterrupted

a

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of

W

foregoing

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unauthorized

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OTHER

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ARRANTY

MERCHANT

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Remedies

REMEDIES

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A

GILENT TECHNOLOGIES

DIRECT, INDIRECT

properly installed

arranty

warranty

maintenance

specications

.

SPECIFICALL

ABILITY

PRO

DAMAGES, WHETHER B

LEGAL THEORY

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use

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with

software

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instrument

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of

error-free

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modication

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IS

EXPRESSED

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DISCLAIMS

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instrument.

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or

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product,

OR

or

improper

IMPLIED

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2701

vi

Safety

The

following safety

yourself

Symbols

with each

symbols

of

the

are

symbols

used

and

throughout

its

meaning

this

before

manual.

operating

F

amiliarize

this

instrument.

The

C

AU

TI

O

N

caution

procedure

damage

sign

until

The

W

A

R

N

I

N

G

warning

procedure

in

injury

indicated

sign

which, if

to

or

destruction

the

indicated

sign

which, if

or

loss

conditions

denotes a

not correctly

conditions

denotes

not

of

life

.

are

hazard

performed

of

the

instrument.

a

life-threatening

correctly

Do

not

proceed

fully

understood

to

the

instrument.

are

fully

performed

beyond

or

adhered

Do

not

proceed

understood

hazard.

or

adhered

a

warning

and

met.

It

It

calls

to

and

,

could

met.

calls

to

attention

beyond

,

could

sign

to

result

in

a

caution

attention to

result

until the

a

a

Instruction

Manual

L

The

instruction

for

the

user

to

manual

refer

to

symbol.

the

The

instructions

product is

in

the

marked

manual.

with

this

symbol

when

it

is

necessary

vii

General

Safety Considerations

W

A

R

N

I

N

G

Before

grounded

socket

Any

outside

can

W

AR

N

I

N

G

There

personal

Any

instrument with

trained service

W

A

R

N

I

N

G

If

equipment

condition

C

A

U

T

I

O

N

Before

has

F

the

C

A

U

T

I

O

N

Electrostatic

inside

warranty

this

outlet

interruption

result

are

adjustments

this

instrument

this

been

ailure

to

instrument

the

instrument

through

provided

the

instrument,

in

personal

many

injury.

could

(in

which

instrument

adapted

set the

when

discharge

instrument.

.

is

switched

the

protective

with

protective

of

the

protective

or

disconnection

injury

.

points

Be

in

extremely

or

service

the

instrument

procedures

protective covers

personnel.

is

not

used

as

be

impaired.

all

means

is

to the

ac power

the ac

(ESD)

Repair

for

switched

voltage

input

power cable

on

of

on

,

make

conductor

earth

(grounding)

careful.

that

removed should

specied,

This

instrument

protection

on,

make

of

the

ac

to

the

correct

is

or

near

input

damage

due

sure

it

of

the

ac

contact.

conductor

of

the

protective

which

can,

require operation

be

the

protection

must

are

intact)

sure

its

primary

power

source

voltage

plugged

in.

connectors

to

misuse

has

been

power

,

inside

earth

if

contacted,

performed

provided

be

used

only

.

could

can

is

not

properly

cable

to

a

or

terminal

cause

of the

only

by

by

the

in

a

normal

.

power

cause

circuitry

damage

damage circuits

covered under

to

Before

center

properly grounded,

connecting

and

outer

any

conductors

and

touching any connector

viii

cable

should

.

to

of

the

the

touch

electrical

cable

together

the

frame

input,

.

of

momentarily

Personnel

the

instrument

short

should be

before

the

Contents

1.

The

Ordering

Men

The

The

F

ron

Getting

Installing

Trigger

Ligh

In

Cleaning

Cleaning

Cleaning

Cleaning

Storage

Making

Summary

Insp

Optical

Instrument

information

u

and

Key

Agilen

Firm

t

tro

purp

t

panel

w

a

v

duction

ection

w

e

t

83481A

ose

the

the

are

. .

Connector

and

non-lensed

ligh

lensed

.

connections

.

p

erformance

at

a

Glance

.

Con

v

en

tions

Optical/Electrical

of

the

plug-in

of

the

plug-in

b

est

p

erformance

plug-in

requiremen

.

.

.

handling

t

w

.

.

.

.

.

.

mo

.

.

.

Care

.

.

.

ligh

a

v

e

adapters

connections

.

.

.

.

.

.

.

.

.

.

testing

.

dule

ts

.

.

.

t

.

.

.

.

w

.

.

mo

mo

.

.

.

.

.

a

.

.

.

.

v

.

.

.

.

.

.

dule

dule

.

.

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.

.

.

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.

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.

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.

e

connectors

.

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.

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Plug-In

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1-4

.

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Mo

dule

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1-5

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1-7

.

1-8

.

1-8

1-11

.

1-11

.

1-11

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1-12

.

1-14

.

1-14

.

1-16

.

1-17

.

1-18

.

1-18

.

1-19

.

1-20

.

1-21

.

1-21

.

1-22

2.

Channel Setup

Displa

N

N

N

N

N

N

Display

N

N

N

N

N

N

Scale

N

N

N

NN

NN

Offset

N

NN

NN

NN

Bandwidth/Wavelength.

N

NN

N

N

N

Channel autoscale

NNNNNNNNNNN

External scale . .

NNNNNNNNNNNNNNNNNNNNNNNNN

Calibrate

ying the

N

N

N

N

N

N

N

N

N

NN

NN

NN

N

N

N

N

N

NN

NN

NN

N

N

.

NN

NN

N

N

N

N

N

N

N

N

N

NN

N

N

N

N

N

N

N

N

N

N

N

NN

NN

N

N

N

N

N

N

N

N

NN

N

N

N

N

N

N

N

NNNNNNNNNNNNNNNNNNNNNNNNN

Menu

Channel

.

.

.

.

.

.

. .

. .

NN

NN

NN

NN

NN

N

N

N

N

N

N

N

N

NN

N

N

N

N

N

N

N

N

N

N

N

NNNNNNNNNNNNNNNNNNNNNNNNN

NNNN

. . . . . . . . . . . . . . . . .

Setup

.

.

.

. .

. .

. .

N

N

N

N

N

N

NN

NN

NN

NN

NN

NN

N

N

N

N

N

N

N

N

N

N

NN

Men

us

.

.

.

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.

.

.

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.

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.

.

NN

NN

N

N

N

N

N

N

N

N

N

N

N

NN

NN

NN

N

.

.

. .

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N

.

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.

.

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2-5

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2-5

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2-6

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2-7

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2-8

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. . .

Contents-1

2-9

2-9

2-11

3.

Calibration

F

actory

Mainframe

O/E

User

O/E

Plug-in

Oset

Dark

Channel

Prob

External

Complete

4.

Specications

Sp

ecications

V

ertical

En

P

o

W

Characteristics

Trigger

Declaration

5.

In

Case

If

Y

ou

If

If the

Error

Overview

Calibrations

Calibration

F

actory

Calibrations|Optical

User-W

e

vironmen

w

er

eigh

of

Ha

the

Messages

W

a

Mo

dule

Zero

Calibration

Calibration

Sk

ew

Calibration

Scale

Calibration

and

.

sp

ecications

tal

requiremen

t

.

.

.

input

of

Conformit

Diculty

v

e

Problems

mainframe

plug-in do

.

avelength

v

elength

V

ertical

.

Calibration

.

.

.

Summary

Characteristics

. .

. .

sp

ecications

ts

.

.

.

.

.

.

c

haracteristics

do

es

es not

. .

. .

.

.

.

.

.

.

.

Calibration

and

Electrical

Calibration

Calibration

.

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.

y

.

.

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. .

not

op

erate

operate

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3-4

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3-4

3-6

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3-7

3-9

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3-11

3-12

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3-14

.

3-15

3-16

.

3-18

.

3-20

.

4-3

.

4-4

.

4-8

.

4-8

.

4-8

.

4-9

.

4-9

.

4-10

.

5-3

.

5-3

.

5-4

.

5-6

Index

Contents-2

Figures

1-1.

Front panel

1-2.

Block diagram

2-1.

Optical Channel

2-2.

Electrical Channel

2-3.

A typical

3-1.

Current

3-2.

Plug-in

3-3.

Oset

3-4.

Dark calibration

3-5.

Electrical

3-6.

External

T

ables

of

Cal Status

Frame

calibration

Zero

Calibration

Channel

Scale

the

plug-in

of

the

plug-in

Setup menu.

Setup menu.

display

1T

emp

condition

menu

menu

Calibrate

Menu

.

.

.

.

.

.

.

..

module

module

.

.

.

.

.

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.

.

Menu

..

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..

.

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1-9

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1-10

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2-3

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2-4

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2-13

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. 3-5

.

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..

. 3-10

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3-13

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3-15

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3-17

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3-19

3-1.

F

actory

3-2.

Optical

3-3.

Miscellaneous

3-4.

Complete

Calibration

and Electrical

Summary

Channel User

User Calibration

Calibration Summary

.

.

.

.

.

..

Calibration Summary

Summary .

..

..

..

..

..

..

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..

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Contents-3

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3-4

.

3-8

.

3-9

.

3-20

Contents

1

The

Instrument

Glance

at

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The integrated optical channel reduces mismatch loss variation by eliminating

signal distorting cables and connectors associated with the use of external

receivers in order to accurately characterize optical waveforms

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channel is calibrated to provide both accurate display of the received optical

waveform in optical power units and measurement of the signal's average

power. In addition, the

User Cal feature provides for consistent accuracy at

1-2

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The

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47256/4108.6

Service

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user documentation

user documentation

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83481A Optical/Electrical

Figure

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1-11

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the

connecting

the

center

front-panel

the instrument.

to

prevent

damaged by

static

discharges

any

coaxial

and

outer

input

Be sure

buildup of

83481A Optical/Electrical

electrostatic discharge

to

the front-panel

cable

to the

connectors,

conductors

connectors

that the

static charge

of the

without rst

instrument is

.

(ESD).

cable together

properly

at

Plug-In

input

touching

a

Glance

Module

.

1-13

Lightwave

Introduction

Connector

Care

Lightwave

connection

nonrepeatable

best

Lightwave

connections

sources

or

components

Fiber

and

in

combinations

of

cables

cable

procedures

practices

connectors

,

receivers

optic

dierent

do

interfaces

or

inaccurate

to

clean,

may

be

,

patch

.

cables

are

environments

,

jackets

not

work

.

used

used

,

and

well

can be

Dirty

or

measurements

care

for

,

are

used

to

join

panels

at

dierent

.

indexes

together

damaged by

improper cleaning

damaged lightwave

.

This

connect,

to

cables

,

terminals

connect

between

and

and

inspect

two

many

wavelengths

There

are

a

variety

of

refraction.

.

Cables

should

interfaces can

chapter

lightwave

ber

ends

optical

other

,

in

of

sizes

In

general,

match

will

suggest

together

ports

on

types

single

or

,

core/cladding

dierent

each

other

and

result

some

connectors

.

These

devices

of

,

systems

multi-mode

types

and

in

.

laser

the

system.

However

to

to

repeatability

Lightwave connectors

connectors.

small ber

less in

microns

provide

another

diameter,

,

regardless

a

direct

.

When

becomes

In a

core.

in

diameter

of

the

cable

and

low-loss

these

connectors

an

important

dier from

ber optic

system, light

Because ber

and dust

,

dust

particles range

and

type

,

optical

are used

factor

electrical or

cores are

very

minute

the connectors

signal

transition from

in a

measurement system,

.

microwave

is

transmitted

often

62.5

microns

from tenths

contamination

have only

one ber

system

through

(0.0625

of a

micron

on

the end

one

function:

an

extremely

mm)

to

several

of

end

or

the

ber core can degrade the performance of the connector interface (where the

two cores meet). Therefore

connector

interface free of trapped foreign material.

, the connector must be precisely aligned and the

,

Connector (or

of a lightwave

insertion) loss is one important performance characteristic

connector.

Typical values are less than 1 dB of loss

,and

sometimes as little as 0.1 dB of loss with high performance connectors

1-14

.

The

Instrument

at

a

Lightwave Connector

Glance

Care

Return

loss

reection

The

best

40

dB

,

although

Causes

of

dierences

reections

use

and

removal

A

chieving

(no

air

gap)

1.

The

type

2.

Using

lossy

or

is

not

be

less

dierence

is

another

the

better

physically

20

connector

in

the

caused

of

the

best

and

properly

of

connector

the

proper

reective

smooth

accurate

in

optical

important

(the

contacting

to

30

loss

numerical

by

damaged,

index

possible

cleaning

,

light

or

the

connection

.

F

or this

measurement

factor

larger

the

return

connectors

dB

is

common.

and

reections

aperture

worn,

matching

compounds

connection,

aligned,

will

and

connecting

not

depends

make

is

reason, lightwave

systems

.

It

include

of

two

or

loose

where

a

not

repeatable

is

a

measure

loss

,

the

have

return

bers

ber

.

the

on

two

techniques

smooth

connections

.

of

smaller

losses

core

misalignment,

,

spacing

ends

,

and

ber

end

things:

.

If

transition.

,

measurement

reection:

the

reection).

better

and

air

the

improper

faces

the

connection

If the

can

make

the

less

than

gaps,

are

ush

transition

data will

a

critical

is

1-15

The

Instrument

at

a

Glance

Lightwave Connector

Care

Denition

Handling

Cleaning

of

terms

Cleaning and

Proper cleaning

achieving accurate

Technologies

before each

measurement

Information on

to properly

T

o

avoid

mate

confusion,

Connector

handling

and handling

and repeatable

lightwave equipment.

protecting

connectors

the following

Houses

cable

A

dapter

Does

connectors

Always

ends

or

Always

they

Three

clean non-lensed

clean lightwave

handle

should

cleaning

keep

are

not

cleaning

lightwave

never

be

solutions

connectors

in

use

.

processes

lightwave

adapters

lightwave connections

using

and

the

or

on

not

contain

connectors

allowed

and

tools

and

(See

\Storage

are provided.

.

The

.

of

lightwave

measurements with

Lightwave interfaces

the

techniques

storing

are

also

denitions

ber

end,

the

front

optical

.

to

touch

.

cable

ends

.")

connectors

third

your

included

most

panel

ber

and

cable

anything

covered

The rst

.

The

process

connectors

is

imperative

your

should

described

in

connectors/cables

in

this

section.

are

used

in

this

open

at

the

end

of

an

instrument

.

Used

to

mate two

ends

with

great

except

with

process

second

describes

other

a

protective

describes

process

how

for

Agilent

be

cleaned

this

handbook.

and

tips

handbook.

of

a

lightwave

or

accessory.

optical

care

.

Fiber

mating surfaces

cap

how

describes

to

care

how

for

on

how

when

to

lensed

to

CA

UT

I

O

N

Agilent

not

as

you

manufacturer for information on application and cleaning procedures

be

gels

think

T

echnologies

applied

,

may

be

the

to

their

dicult

use

of

strongly

instruments

to

remove

such

compounds

recommends

and

accessories

and

can

is

necessary

that

index

contain

matching

.

Some

compounds

compounds

damaging particulates

,

refer

to the

compound

.

,

such

.If

1-16

The

Instrument

at

a

Lightwave Connector

Glance

Care

Equipment

C

A

U

T

I

Process

Cleaning non-lensed

The

following

lightwave

Any

commercially

Cotton

Compressed

O

N

Agilent

to

clean

that

can

Before

cleaning

connector

air

.

Then

scrubbing

alcohol

to

times

a

cotton

.

alone

This

is

connectors

swabs

air

T

echnologies

optical

ber

degrade

the

.

Use

isopropyl

use

alcohol

of

the

will

swab

technique

a

list

of

.

available

:

:

:

:

:

:

:

:

:

:

:

:

recommends

ends

performance

ber

to

ber

end

not

remove

and

moving

can

lightwave connectors

the

items

that

should

denatured

:

:

:

:

:

:

::

::

::

:

:

:

:

::

::

::

::

that

.

F

oam

swabs

::

:

:

:

:

:

:

alcohol

:

:

:

:

:

:

you

can

:

:

:

:

:

:

do

leave

:

:

Agilent

not

.

end,

clean

the

ferrules

alcohol,

clean

can

help

the

help

them.

it

back

remove

clean

ber

remove

This

and

cotton

end.

Some

particles

can

be

forth

or

displace particles

be

used

Agilent

use

lmy

and

swabs

amount

done

across

to

part

part

any

deposits

other

,

and

when

by

the

clean

non-lensed

number

number

type

of

on

parts

of

clean

compressed

of wiping

application

applying

ber

end

smaller

8520-0023

8500-5262

foam

swab

ber

ends

the

or mild

of

the

alcohol

several

than

one

micron.

Allow

the

compressed

the

ber

end

across the

soon as

the connector

connector

air

after

ber end.

to

.

Compressed

the

alcohol

Visually inspect

is dry

dry

(about

air

lessens

evaporates.

,

the

connection

a

minute)

the

the

chance

It should

ber

or dry

end

should

it immediately

of deposits

be blown

for

stray

be

made

remaining on

horizontally

cotton

.

with

bers

clean

.

As

CA

UT

IO

N

Inverting the

the sprayed

compressed air

surface.

Refer to

canister while

spraying will

instructions provided

on

produce

the

compressed

residue

air

on

canister.

1-17

The

Instrument

at

a

Glance

Lightwave Connector

Care

Equipment

Process

Cleaning lightwave

All

of

the

items

listed

above

lightwave

with

connector

N

As

are

outweighs

Clean

with

clean

adapters

isopropyl

adapters

O

T

E

noted

in

a

very

thin

the

the

adapter

a

foam

compressed

alcohol

previous

however

risk

of

swab

.

In

addition,

and

.

caution

statement,

,

and

the

risk

contamination

by

applying isopropyl

.

Allow

air

.

adapters

for

cleaning

small

compressed

the

of

other

of

foam

the

adapter

connectors

foam

air

foam

swabs

contamination

swab

deposits

alcohol

to

air

swabs

to

clean

can

buildup

dry

left

,

leave

from

to

or

may

may

the

lm

on

cleaning

the

dry

be

be

used

inside

y deposits.

the inside

the

inside

it

immediately

used

to

along

of

lightwave

These deposits

of adapters

inside of

of

the

clean

greatly

adapters.

connector

with

Cleaning

Some

instruments may

the

connection

the

light is received into a lens rather than into a connecting ber

lensed

does

not provide

connections

have a

connector

a

physically

that

contacting

is

\lensed."

In

other

connection,

. These

words:

but

receiving lenses usually have an anti-reective coating that is very easily

damaged. Therefore

, these connectors should

never

have cleaning solutions

or any other substance applied to them unless it is specically recommended

by the manufacturer

of dust from time to time

.Y

ou may wish to use clean compressed air

.

to rid them

1-18