Agilent 71450B Data Sheet

Quick Reference

HP 71450B/1B/2B Optical

Spectrum Analyzers

ABCDE

Printed in USA

HP Part No. 70950-90052

Edition 1

Printed in USA June 1995

1400 FountaingroveParkway,

Santa Rosa, CA

95403-1799, USA

Notice.

The information contained in this document is subject to

change without notice. Hewlett-Packard makes no warrantyofany

kind with regard to this material, including but not limited to, the

particular

a

implied w

purpose.

herein or

arranties

Hewlett-Pac

for inciden

the furnishing,

ARS

(c)

of

(2)

at

Righ

t

the

252.227-7013

of

AR

F

Restricted

ernmen

v

Go

(ii)

(1)

DF

at

and

clause

of merc

tal

performance,

Legend.

ts

ject

sub

is

in

ts

Righ

Commercial

the

52.227-19

han

kard

consequen

or

restrictions

to

ec

T

for

tabilit

shall

or

Use,

hnical

DOD

Computer

other

and

y

liable

e

b

not

damages

tial

this

of

use

duplication,

set forth

as

Data and

agencies,

agencies.

tness

Soft

for

errors

for

in

material.

disclosure

or

in

Computer

subparagraphs

and

are

w

tained

con

y

b

with

the U.S.

connection

subparagraph

clause

are

w

Soft

(c)

Restricted Righ

(c)

(1)

ts

c



Copyright Hewlett-P

All Righ

ts Reserv

ackard Company 1995

ed. Reproduction, adaptation, or translation without

prior written permission is prohibited, except as allo

copyrightlaws.

wed under the

iii

Contents

1. Menu Maps

MenuMaps ...... ...... ..... .. 1-2

Amptd Menu................... 1-3

Swp Men

BW,

er Men

Mark

Men

Misc

Men

State

Men

races

T

eln

v

a

W

USER

5

Men

2.

4

Optical

u

Men

ectrum

Sp

u.

.

u

u's

u.

..

.

DFB

FP

LED

PDL

.

..

.

anced

Adv

anced

Adv

anced

Adv

anced

Adv

Analyzer

.

..

.

..

.

..

Measuremen

unctions

F

.

..

.

t

.

Program

t

Program

t

Program

t

1-4

.

1-5

.

1-6

.

1-8

.

1-10

.

1-11

.

1-12

.

1-13

.

1-14

.

1-15

.

Con

Commands

tions

en

v

tions .

en

v

..

.

Programming

3.

Notation

tax

Syn

Functional Index .. ...... ..... .... 3-6

Programming Commands ...... ..... .. 3-18

4. Error Messages

User Application Errors (0001 { 0999) . . . . . . . . 4-2

.

..

.

2999)

{

arning

W

Brok

en

(2000

Errors

(6000

(7000

..

.

6999)

{

.

{

7999)

.

..... ....

..... ..

..... ....

.

..

.

erating

Op

Hardw

Errors

are-

Computation Errors (8000 { 8999)

Factory-Use Only Errors (9000 { 9999)

Warning Messages (16001 { 16012)

Contents-1

3-2

.

3-3

.

4-3

.

4-12

.

4-13

.

4-16

4-17

4-18

Menu Maps

1

Menu

Maps 1-1

Menu Maps

The menu maps that are in this guide graphically represent the

softkey menus that are located under the

Maps for each left-side softkey are shown in alphab etical order. Menu

maps contain the following features:

4

MENU

5

and the

4

USER

5

keys.

1-2

Menu Maps

Amptd Menu

Menu Maps

Menu

Maps 1-3

BW, Swp Menu

1-4

Menu Maps

Marker Menu

Menu

Maps 1-5

Misc Menu

1-6

Menu Maps

Misc menu (cont'd)

Misc Menu

Menu

Maps 1-7

State Menu

1-8

Menu Maps

State menu (cont'd)

State Menu

Menu

Maps 1-9

Traces Menu

1-10

Menu Maps

Waveln Menu

Menu

Maps 1-11

4

5

USER

Menu's DFB Advanced Measurement

Program

1-12

Menu Maps

4

5

USER

Menu's FP Advanced Measurement

Program

Menu

Maps 1-13

4

5

USER

Menu's LED Advanced Measurement

Program

1-14

Menu Maps

4

5

USER

Menu's PDL Advanced Measurement

Program

This program is available on HP 71451B (HP 70951B) instruments as

Option 003.

Menu

Maps 1-15

2

Optical Spectrum Analyzer Functions

This chapter contains an alphabetical listing of all optical spectrum

analyzer softkeys, hardkeys, front-panel indicator lights, and front- and

rear-panel input and output connectors. A brief description has been

same)

enc

displa

alues.

men

programming

function

the

to

refer

.

e

DELTA

u's

has

vided for

pro

command

been

also

more

or

F

71450B/1B/2B

HP

kspaces

Bac

4j5

men

ey

softk

4

4g5

415

Increases

5

f

(custom-k

h

eac

erforms the

that p

provided.

detailed

the

us.

eypad

listed.

item

information

al

Optic

cursor

or

while

decreases

Activ

ey)

k

same

Sp

If

on

ctrum

e

activ

ates

applicable,

nearly

(or

eys or

softk

Analyzer

text

tering

en

parameter

e

Marker

the

hardkeys,

Refer

or

v

function.

1/T

Congures marker readouts to showmarker position as the

inverse of the marker sweep-time position.

3-DIMENfOnfOff

Views the 3-dimensional display. Related

command: THREED

t

oin

p

A

trace

from

B

A-B

results

A+B

Subtracts

Adds trace

f%

A

stores

f%

A

f

-

the

f

-

results in trace A. Related command:

Af%-f(A-B)-C

stores the results in trace A. Related command: AMBMC

then

trace

trace A.

in

A

trace

command:

oin

p

B

AMB

oint,

p

y

b

t

APB

Subtracts both trace B and trace C from trace A,

Optical

Spectrum Analyzer

y

b

oint,

p

then

Functions

then

stores

the

2-1

Af%-fA-B+DL

Subtracts trace B from trace A pointby point, adds

the value of the display line, then stores the results in trace A. Related

command: AMBPL

Af%-fA-C

Subtracts trace C from trace A pointbypoint, then

stores the results in trace A. Related command: AMC

Af%-fA-C+DL

Subtracts trace C from trace A pointby point, adds

the value of the display line, then stores the results in trace A. Related

command: AMCPL

Af%-fA*DL/(A+B)

Divides the displaylineby the sum of traces

A and B and then multiplys the result by trace A. Related command:

ADAPBTL

of

sum

the

y

b

line

y

displa

ultiplys

A

results

oth

b

The

line.

A

results

the

the displa

by

are

trace

results

the

y

b

are

sum

result

stored in

B

displa

stored

traces

of

trace

y

b

line

y

trace

and trace

are stored

line

y

trace

in

and

A

alue,

v

alue,

v

A.

C

in

A.

from

A.

B

trace

then

the

y

b

A.

A*DL

-

f

A

f%

traces A,

B, and

command: AD

A*DL/B

f

-

f%

A

result

divides

trace

divides

the

command:

(A-B)-C+DL

f

-

f%

then

A,

command:

A*DL/C

f

-

f%

the

command:

f

DL*(A+B)/C

f%

-

result

/(A+B+C)

f

Cand

APBPCTL

Multiplies

trace

y

b

ADBTL

the

adds

AMBMCPL

Multiplies

trace

y

b

ADCTL

Divides

m

then

trace

The

B.

Subtracts

y

displa

trace

The

C.

Multiplies the

display line. Then, this result is divided by trace C. The nal results

are stored in trace A. Related command: APBDCTL

AfMETERfOnfOff

Displays the power level of the trace point

currently being measured at the optical sp ectrum analyzer's input.

AMETER

Selects the

UNITS

amplitude

the

for

units

y

displa

tents of trace A and trace B registers.

UNITS

f

command:

AutoMan

f

scale. Related command: A

AfXCHfB

Exchanges the con

Related command: AXB

C

AfXCH

Exchanges the con

f

Related command: AX

Optical Spectrum

2-2

C

Analyzer

tents of trace A and trace C registers.

Functions

ACT Front-panel indicator light that turns on whenever the optical

spectrum analyzer is b eing displayed.

ACTIVEfMARKER

adcfsync

Presents a menu for synchronizing an external signal

Selects the active marker.

with pulse modulation capability with the optical spectrum analyzer's

analog-to-digital converter.

ADC SYNC OUT

Rear-panel output connector that allo ws the user

to synchronize an event, external to the instrument to the instrument

data acquisition.

adcftrigger

spectrum

analyzer to

Presents a menu for synchronizing the optical

pulsed

a

ligh

source.

t

ADCTRG

amplitudes

ADCTRIG

measured on

result

the

of

ADCTR

G

ADCTRIG

(ADC)

erter

v

con

ADCTR

GDL

ADCTRIG

command:

ADCTRIG

command:

AC

Selects

f

opposite

ecomes

b

C

A

DELAY

f

after

Y

FREE

f

ADCTR

NEGEDGE

f

ADCTR

external

edges

trace

the

ys

Dela

trigger

the

Selects

FREE

G

Selects

NEGEDGE

G

are

amplitude

external

ternal

in

external

triggering.

ADC

subtracted

triggering

ADC

and

value.

The

absolute

the

Related command:

analog-to-digital

the

of

command:

the

of

triggering.

alue

ADCTRIGfPOSEDGE

Selects external ADC triggering. Related

command: ADCTRG POSEDGE

ALIGNfPRESET

Returns alignment to factory default settings.

Related command: ALIGNPRST

OFFSET

f

REF

f

AMP

relativ

e-amplitude

oset

AMPCORf-&LOWER

Adjusts the

alue.

v

Copies amplitude-correction

displa

Related command:

limit-line table. Related command: COR

AMPCOR-&fUPPER

upper limit-line

Copies amplitude-correction v

table. Related command: COR

Optical

Spectrum Analyzer

amplitude

ed

y

TOLIM

OFFSET

R

values in

alues in

TOLIM

using

el,

lev

to a lo

to an

Functions

a

wer

2-3

AMPCORfOnfOff

Turns on and o the use of amplitude

corrections. Related command: AMPCOR

Amptd

Presents a menu of softkeys that control the optical spectrum

analyzer's sensitivity and amplitude scale.

AMPTDfVALUE

Enters the beginning amplitude value of the

currently selected limit-line segment. Related command: LIMIAMP

ANALOG OUT

Rear-panel output connector that provides a

voltage equal to the photocurrentinthediodemultiplied bythe

transimpedance value.

ANALYZRfTEST

Initiates a self-test routine. Related command:

TEST

ANOTATN

CHR

ANY

f

annotation

ed

y

displa

the

an

T

y

urns

ASCI

haracter

c

I

as

part

Off

On

f

ters

En

on

programming

a

of

o.

and

command.

mo

to

dify

MKR

f

AT

execute

on

command:

autmeas

automatic

Auto

4

A

alignmen

A

Determines

ALIGN

UTO

t

UTOALIGN

Off

f

On

f

unique

a

UTOMMKR

A

state

f

measuremen

(custom-k

5

routine

the

to

Allo

signal

Presen

routine.

t

v

eypad

ensure

the

ws

in

ts

alues

amplitude

automatic measuremen

environmen

ultiple

m

a

men

a

measured

ey)

k

signal

whic

u

y

b

Initiates

accuracy

allows

h

the

an

mark

.

t

to

ou

y

er.

automatic

command:

the

AUTOfALIGN

Initiates an automatic alignment routine to ensure

amplitude accuracy. Related command: AUTOALIGN

4

AUTO MEASURE

5

Initiates an automatic measurement routine that

searches for a signal and then centers and narrows the span around it.

UTOMEAS

command:

MEASURE

f

searches for a signal and then cen

Related command: A

AUTOfSCALE

amplitude of the displa

(PDL) measuremen

Optical Spectrum

2-4

A

Initiates

automatic

an

ters and narro

measurement

ws the span around it.

UTOMEAS

HP 71451B Option 003 only

Automatically scales the

yed signal during a p olarization dependen

t. Related command: PDLSCALE

Analyzer

Functions

routine

that

tloss

AUTOPTSfALIGN

Runs an automatic alignment routine for the

ber positioner's tracking table. Related command: ALIGN

AUTORNGfOnfOff

Turns automatic ranging on and o. Related

command: AUTORNG

AUTZEROfOnfOff

Turns o zeroing between traces. Related

command: AUTZERO

Bf%-fB-DL

Subtracts the value of the display line from trace B,

then stores the result in trace B. Related command: BML

BfXCHfC

Exchanges the contents of trace B and trace C registers.

Related command: BXC

BEEPER

signal has

that a

Off

On

f

urns

T

crossed a

displa

limit

ed

y

command:

alerting

for

alarm

an

o

and

on

LIMIBEEP

ed.

y

displa

eing

b

from

data

A

trace

ts

BLANK

A

f

command:

B

BLANK

f

command:

C

BLANK

f

command:

TRACES

f

or

Swp

BLANK

creation

BW,

bandwidth,

en

trace

ts

en

trace

ts

en

Presen

of

men

a

ts

editing

and triggering.

en

B

C

the

ts

lines.

for

u

data

from

displa

con

being

trace

of

y

command:

instrumen

displa

A,

ed.

y

ed.

y

and

B,

BLANK

sw

t

ou

y

C

eep,

Cf%-fB

calfmenu

Places contents of trace B into trace C.

Presents a menu for performing user calibrations at a set

wavelength and power level.

w

o

ts

ap

amen

CAL

cal

POWER

f

setup

f

erforms

P

Presen

wavelength for user calibrations.

CALfWAVELEN

Performs a w

wavelength and amplitude.

CALfWVL

ATfPIT

f

Performs a w

pit. Related command: CAL

a

w

set

a

ecifying

at

the

er

w

o

p

calibration

er

sp

for

u

elength calibration at a set

av

avelength calibration at a signal

Optical

Spectrum Analyzer

elength.

v

and

Functions

2-5

CALCf+fDISPLAY

HP 71451B Option 003 only

* Calculates

and displays the peak-to-peak polarization-dep endent loss. Related

command: PDLCALC

CALCffOnfOff

Turns the calculation of advanced-measurement

program results on and o.

CANCEL

catalogf&fMSI

Cancels the various memory-erase operations.

Displays the contents of the currently selected

user memory. Related command: CATALOG, DSPMODE CAT, and

MEM

4

CENTER

command: CENTER

CENTER

command: CENTER

CHANGE

are

CHOP

5

Species the wavelength displayed at center screen. Related

WL

ecies the

Sp

wa

elength

v

displa

screen.

ter

cen

at

ed

y

WL

les

to

hed

attac

prex

\c

hop"

the

command:

de on

mo

PREFX

o.

and

On

f

PREFIX

f

memory

in

Off

f

Changes

.

urns

T

they

when

command:

CHOP

end

the

CLEAR

data

the

CLEAR

obtained

CLEAR

obtained

END

f

TO

f

line.

A

f

WRT

f

scanning

from

B

f

WRT

f

from scanning

Deletes

Con

all

uously

tin

input

the

uously

tin

the input

haracters

c

dates

up

ectra.

sp

dates

up

spectra.

from

trace

with

A

with

B

to

data

new

command:

data

new

command:

CLR

W

of

CLEARfWRTfC

Continuously updates trace C with new data

obtained from scanning the input spectra. Related command: CLRW

CLOSESTfPEAK

Moves the active marker to the closest signal p eak.

Related command: MKPK CP

pit.

CLOSEST

COMMAND

v

Mo

PIT

f

MKPK

Accesses a men

es the

e

activ

CPIT

uforen

the

to

er

mark

tering, editing,

closest

and executing short

signal

programming routines.

CONFIG

module in the mo

the conguration of the optical spectrum analyzer

Shows

dular measurement system (MMS). Related

command: CONFIG and DSPMODE CONFIG

Optical Spectrum

2-6

Analyzer

Functions

CONFIRMfDELETE

DELETEfALL

has been pressed.

Erases the contents of the limit-line table after

CONFIRMfERASE

CONT

Resumes op eration of a halted program.

CONTfSWEEP

Erases memory.

Sweeps the measurement range when the trigger

conditions are met. Related command: CONTS

currentfsource

Option 001 only

Presents a menufor

controlling the pulsed current source.

CURRENT SOURCE

Rear-panel connector that utilizes the same

capability as the ADC SYNC OUT connector.

to

ter-w

amplitude

the

equal

elength

v

a

and activ

command:

relativ

els

softk

curren

e mark

t

Sets

the cen

CWL

-

&f

Related Command:

STEP

f

CWL

-

&

1

f

w

et

dierence

the

automatic

Selects

dBm

debug

DEBUG

command:

AutoMan

f

measuremen

amplitude

Accesses

FAST

f

command:

Starts

elength

v

a

w

ter

MKCWL

cen

the

Sets

reference

the

een

MKSS

Changes

routine.

t

in

units

program-debugging

the

debugging

AST

DEBUG

F

the

step

scale

to

e

functions.

ey

DLP

mark

size

w

er

used

UTOMDB

A

1mW.

a

at

w

er

equal

elengths.

v

a

y

b

fast

elength.

v

a

to

the

rate.

DEBUG

Off

Activates

f

ON

debugging

DEBUG

DEBUGfSLOW

Starts debugging the current DLP at a slow rate.

Related command: DEBUG SLOW

DEFINEfUSRfKEY

command:

DELETE

KEYDEF

ALL

f

Places softkeys in the user menu. Related

currently

y

Erases

an

command: LIMIDEL

DELETEfCHAR

DELETEfor...

Deletes the c

Displays the

haracter at the displa

DELETEfCHAR

characters from the text.

Optical

limit

of

loaded

DLPs.

yed cursor.

softkey for deleting

Spectrum Analyzer

command:

2-7

DELETEfSEGMENT

command: LIMISDEL

Erases the selected limit-line segment. Related

DELTA

Displays a delta marker relative to a reference marker.

Related command: MKD

DETECTRfExtfInt

Species the receive device to be either

optical or electrical thus selecting optical-to-optical testing or

optical-to-electrical testing. Related command: PDLDEV and

PDL DEV?

DFB

Turns on the DFB advanced-measurement program. Related

command: DFB

functions

4

DISPLA

Y

5

Presen

as: HP-MSIB

DISPOSE

f

u

men

ts a

addressing, comm

USER

Erases

con

for

unication, and

con

le

a

trolling

taining

system-lev

user-men

el

conguration.

softk

u

eys

memory.

distrib

menu

f

Displa

ys

a

men

u

for

selecting

statistical

distributions.

the

on

of

y

signal

trace.

displa

B.

trace

ailable

v

a

connectors.

DISTRIB

LIN

f

DSP

DUTY

the

f

CYCLE

f

rear-panel

command: IGENDTYCY

distribution

wer

o

p

a

ys

Displa

Off

f

On

f

horizontal

ositions

P

Off

f

On

f

a

line

DL

displa

the

o

and

on

urns

T

OFF

f

ON

f

B

of

cycle

y

dut

OUT

the

and

CURRENT

SOURCE

f

ADC

Changes

%

SYNC

from

.

y

suc

at

h

EDITfFUNCDEF

ENTERfCOMMAND

Displays a user-dened function for editing.

Allows commands to be executed from the front

panel.

limit

enter

command:

ENTERfLINE

ENVLOPE

Selects an en

the limit-line

ys

Displa

LIMIEDIT,

Enters a title

velope statistical distribution

LIMILINE,

created b

table

y the user on the displa

distribution trace. Related command: FP

ENVLOPEfMKR

BW

f

Sets the F

abry-Perot laser en

amplitude. Related command: FP MKBW

Optical Spectrum

2-8

Analyzer

Functions

for

and

creating

limit

LIMISEG

for the po

velope bandwidth

lines.

y.

wer

Agilent 71450B Data Sheet

Specifications and Main Features

Frequently Asked Questions

User Manual

Menu Maps

Optical Spectrum Analyzer Functions