Anritsu MG9637A User manual

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Tunable Laser Source
Operation Manual
Readthis manual before usingthe gquipment. Keepthis manualwith the equipment.
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MG9637AlMG9638A
Tunable Laser Source
Operation Manual
Sixth Edition
r ,
Readthis manualbefore usingthe equipment.
Keepthis manualwith the equipment.
\ I
MeasuringInstruments Division
MeasurementGroup
ANRITSU CORPORATION
Document No.: M-W1213AE-6.0
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I
Safety Symbols
To preventthe riskof personalinjuryor loss relatedto equipmentmalfunction, AnritsuCorporation usesthe following
safety symbolsto indicate safety-relatedinformation. Insurethat you clearlyunderstandthe meaningsof the symbols
BEFORE usingthe equipment.
Some or all ofthe symbols may not be usedonthis equipment. Inaddition, when drawings are includedinthis
manual, labelson the equipment may not be shown onthem.
Safety Symbols Used in Manual
This indicatesa very dangerous procedurethat could resultindeath or serious
DANGER A
injuryif not performedproperly.
WARNING A This indicatesa hazardousprocedurethat couldresultindeath or seriousinjuryif
not performedproperly.
CAUTION
This indicatesa hazardousprocedureor danger that couldresultinlight-to-severe
injury,or loss relatedtoequipmentmalfunction,if proper precautionsarenot taken.
SafetySymbols Usedon Equipmentandlor in Manual
The followingsafety symbols are usedinsideor on the equipment nearoperationlocations, and/orinmanualto
provideinformationabout safety itemsandoperationprecautions. Insurethat you clearly understandthe
meaningsof the symbols andtake the necessaryprecautionsBEFOREusingthe equipment.
This indicatesa prohibitedoperation. The prohibitedoperationisindicated
symbolicallyinor near the barredcircle.
0
This indicatesan obligatorysafety precaution. The obligatoryoperation isindi-
catedsymbolicallyinor near the circle.
n
This indicateswarning or caution. The contentsare indicatedsymbolicallyinor
nearthe triangle.
This indicatesa note. The contents are describedinthe box.
Tunable Laser Source
Operation Manual
27 January 1997 (First Edition)
26 May 2000 (Sixth Edition)
Copyright
0 1997-2000.ANRITSU CORPORATION.
All rights reserved. No part of this manual may
be reproduced without the prior written permission of the
publisher.
The contents of this manual may bechanged without prior notice.
Printed in Japan
ii
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For Safety
WARNING A
Repair
FallingOver
1. ALWAYS refer to the operation manualwhen working near locationsat
whichthe alert markshown onthe left isattached. If theoperation, etc.,
isperformedwithout heedingthe advice inthe operation manual,there
isa risk of personalinjury. Inaddition, the equipment performancemay
be reduced.
Moreover, this alert mark issometimesusedwith other marks andde-
scriptions indicatingother dangers.
2. When supplying power tothis equipment,connectthe accessory3-pin
power cordto a3-pin grounded power outlet. Ifa grounded3-pin outlet
isnot available, beforesupplyingpowertothe equipment, use aconver-
sion adapter andgroundthe greenwire, or connecttheframe groundon
the rear panelofthe equipmentto ground. If power issuppliedwithout
groundingthe equipment, there is a risk of receivinga severe or fatal
electricshock.
3. This equipmentcannot be repairedby the user. DO NOTattemptto
openthe cabinetor to disassembleinternalparts. OnlyAnritsu-trained
service personnel or staff fromyour sales representativewith a knowl-
edgeof electricalfire and shock hazardsshouldservicethis equipment.
There are high-voltagepartsin this equipment presentinga risk of se-
vere injury or fatal electric shock to untrained personnel. Inaddition,
there isa riskof damage to precisionparts.
4. This equipmentshould beused inthe correct position. If the cabinet is
turnedon itsside, etc., itwill beunstableand maybedamagedif itfalls
over as a result of receivinga slight mechanicalshock.
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I For Safety
WARNING A
5. DO NOTshortthe batteryterminals and never attempttodisassemble it
or dispose of it in a fire. If the battery is damaged by any of these
actions, the batteryfluid may leak.
This fluid is poisonous.
Battery Fluid DO NOT touch it, ingest it, or get inyour eyes.
If it is accidentally in-
gested, spit it out immediately, rinseyour mouth with water and seek
medical help. If
it enters your eyes accidentally, do not rub your eyes,
irrigatethem with clean runningwater and seek medical help.
If the
liquidgets onyour skin or clothes, wash it off carefullyandthoroughly.
LCD
6. This instrumentuses a Liquid Crystal Display (LCD); DO NOT subject
the instrument to excessiveforce or drop it.
If the LCD is subjected to
strong mechanicalshock, itmay break and liquid may leak.
This liquid isvery caustic and poisonous.
DO NOTtouch it, ingest it, or get inyour eyes.
If it is ingestedacciden-
tally, spit
it out immediately, rinseyour mouthwith water andseek medi-
cal help. If itentersyour eyes accidentally,do not rubyour eyes, irrigate
them with clean runningwater and seek medicalhelp.
If the liquidgets
on your skin or clothes, wash it off carefullyand thoroughly.
CAUTION A
1. Before changingthe fuses, ALWAYS removethe power cordfrom the
poweroutletand replacethe blownfuses. There is riskof receivinga
fatal electric shock
if the fuses are replacedwith the power cord con-
nected.
Changing Fuse
I
ALWAYS use new fuses of the type and ratingspecifiedon the fuse
markingon the rear panelof the cabinetor mentioned inthis manual.
TSA indicatesa time-lag fuse.
5A of time-lagfuses are usedfor this measuringinstrument.
2. Keepthe power supplyand coolingfan free of dust.
Clean the power inlet regularly. If dust accumulates around the
power pins,there isa risk of fire.
Cleaning Keepthe coolingfan clean so that the ventilation holes are not ob-
structed.
If the ventilation is obstructed, the cabinet may overheat
andcatchfire.
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For Safety
WARNING d
To ensuresafetywhen usinglaser light, this instrument has alaser OnIOff
key, amechanicalshutter to blockthe laserbeam, andaninterlockconnec-
tor. However, since there isasmallchancethat thesethree safetydevices
mightmalfunction,NEVER lookdirectly intothelaser output connector,nor
into the end of afiber connectedto the laser output, even
if the laser has
been switchedoff.
Laser Radiation Markings The productnameandthe danger classificationspecifiedby IEC825-1 and
FDA21-CER are explainedbelow.
MG9637A MG9638A
I EC825-1 Class3A Class3A
FDA21-CFR Class1 Class1
Class 1and Class 3 indicatesthe degree of danger of the laser radiation
outlined below as definedby IEC825-1 and FDA21-CER.
Class 1 Safelaser presentingnodanger when usedaccordingto design
specifications.
Class3A Precautionsare only requiredto preventcontinuousviewing of
the directbeam; a momentary (0.25 s) exposure aswould oc-
cur inaccidental viewing situationsis not consideredhazard-
ous. However,the laser beamshouldnotbe intentionallyaimed
at people. The use of optical viewing aids (e.g. binoculars) is
hazardous.
To ensure safeoperationof the laser optical output, this instrument hasan
opticaloutput ONIOFFkey, a mechanicalshutter, and an interlockconnec-
tor. However, although
it isvery unlikelythat thesesafety deviceswould all
fail simultaneously, as an added precaution. take care NEVER to look di-
rectly intothe laser light evenwhen the laser opticaloutput isoff.
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Laser Radiation Markings
I IDENTIFICATION LABEL I r.crn-rnrtmfi7
I I bcn I ~rlbn rlON LABEL 1 I
INVISIBLE LASER RADIATION
W NOTSTARE INTO BEAM OR VIEW
I
Laser light is always output from 2nd Output even
A when the optical output On10ff key is set to off.
ANRITSU CORP.
lW, MlNAMlAZABU SCHOME
MINATOKU, TOKYO 106, JAPAN
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vii
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EquipmentCertificate
Anritsu Corporation certifies that this equipment was tested before shipment using
calibrated measuring instruments with direct traceability to public testing organiza-
tions recognized by national research laboratoriesincludingthe Electrotechnical Labo-
ratory, the National Research Laboratory and the CommunicationResearch laboratory,
and was found to meet the published specifications.
Anritsu Warranty
Anritsu Corporation will repair this equipment free-of-charge if a malfunction occurs
within 1year aftershipmentdue toa manufacturing fault, provided that this warranty is
rendered void under any orall of the following conditions.
The fault isoutside the scope of the warranty conditions described in the operation
manual.
The fault is due to mishandling, misuse, or unauthorized modification orrepair of
the equipmentby the customer.
The fault is due tosevere usage clearlyexceeding normal usage.
The fault is due to improper or insufficientmaintenanceby the customer.
Thefault is due tonatural disaster including fire, flooding, earthquake,etc.
The fault is due to use of non-specified peripheral equipment, peripheral parts,
consumables,etc.
The fault isdue touse of a non-specifiedpower supply or in a non-specified instal-
lation location.
In addition, this warranty is valid only for the original equipment purchaser. It is not
transferable if the equipment isresold.
Anritsu Corporationwill not acceptliabilityforequipmentfaults due to unforeseenand
unusual circumstances, nor for faults due to mishandlingby the customer.
Anritsu Corporation Contact
If this equipmentdevelops afault,contact Anritsu Corporationor its representatives at
the address in this manual.
viii
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CE Marking
Anritsu affix the CEConformity Marking on the following product(s ) accordance with
the Council Directive 93168EEC to indicate that they conform with the EMC directive
of the European Union (EU).
CE Conformity Marking
1. Product NameIModel Name
Product Name: Tunable Laser Source'
Model Name: MG9637A, MG9638A
2. Applied Directive
EMC : Council Directive 891336EEC
Safety: Council Directive 73123EEC
3. Applied Standards
EMC:
Electromagnetic radiation:
EN5501l(ISM, Group 1,Class A equipment)
Immunity: EN50082-1
Performance Criteria*
IEC801-2 (ESD)
4 kVCD, 8 kVAD B
IEC801-3 (Rad.) 3 Vlm A
IEC801-4(EFT) 1kV B
*: Performance Criteria
A: No performance degradation or function loss
B: Self-recovered temporary degradation of performance or tempo-
rary loss of function
Harmonic current emissions:
EN61000-3-2 (Class A equipment)
Safety: EN61010-1(Instration Category
11, Pollution Degree 2)
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A~tsu aftix the C-tick markingonthe followingproduct(s) accordancewith the regu-
lation to indicate that they conform with the EMC framework of AustralidNew
Zealand
Gtick marking
1. ProductNameIModelName
Product Name: Tunable Laser Source
Model Name: MG%37A, MG%38A
2. Applied Standards
EMC:
Emission:
ASNS2W.112 (ISM, Group 1, ClassA equipment)
Immunity:
ASMZS 4252.1
*Performance Criteria
IEC801-2 (ESD) 8 kVAD B
IEC801-3
(Rad.) 3 VIm A
IEC801-4
(EFT) 1kV(peak) B
* PerformanceCriteria
A: No performance degradation
or function loss
B: Self-recovered temporary degradation of performance or
tempomy loss of function
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About This Manual
This manual explains how to operate, calibrate, and maintain the MG9637A and
MG9638A wavelength tunable laser sources (TLSs).
First-time users should first read Chapter 1,"Outline", to understand the basic func-
tions and for a summary of operations of this unit.
Detailed explanations are provided in the subsequent chapters in an easy-to-reference
arrangement. Use this information together with the index at the end of this manual.
indicates a reference item number including a detailed explanation and related
description.
Notes on operation and useful contents are described as "Hint:"
Note:
This unit can be set to either a wavelength or frequency display; however, in this
manual, there are many portions explained assuming the wavelength display. Users
applying the frequency display should read "wavelength" instead of "frequency."
This unit provides a GPIB and RS-232C serial interfaces sothat users can perform
remote operationby connectinga computer. For details on these interfacesand remote
commands,refer to the manual below.
MG9637AIMG9638ARemote Control InstructionsManual (M-W1214AE)
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Table of Contents
For Safety ......................................................
About This Manual ........................................
Section 1 Outline .......................................... 1-1
1.1 MG9637Aand MG9638AWavelength Tunable
Laser Sources
................................................................. 1-2
1.2 Major Functionsand Operations
..................................... 1-2
1.3 StandardConfiguration
................................................... 1-3
1.4 Options
........................................................................... 1-4
1.5 Application Parts
............................................................. 1-4
Section2 Before Use ...................................
2-11
2.1 Unpacking ....................................................................... 2-2
2.2 Name andFunctionof each Part
.................................... 2-2
2.3 FrontPanel
..................................................................... 2-4
2.4 Front Panel
..................................................................... 2-6
2.5 Screen Display
................................................................ 2-8
....................................
Section 3 Setting Up
.......................................................................
3.1 lnstallation
3.2 ConnectingPower Cable and GroundLine
....................
3.3 Laser Safety ....................................................................
3.4 ConnectingRemote InterlockConnector ........................
3.5 Noteson Vibrationand Shock ........................................
3.6 ConnectingOptical Fiber Cable ......................................
3.7 ReplacingOpticalConnector ..........................................
3.8 ReplacingFuse ...............................................................
Section4 Operation ..................................... 4-51
4.1 Power-onand Heat-up .................................................... 4-3
4.2 Turning Laser OutputON
............................................... 4-5
4.3 OperationMap
................................................................ 4-6
4.4 EnteringSetValues (Parameters)
.................................. 4-7
4.5 SettingWavelength Output Mode
................................... 4-10
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4.6 SettingWavelength .........................................................
.........................
4.7 SettingLaser OutputTime (DwellTime)
4.8 Setting LaserOutput Level
.............................................
4.9 SettingAdvance Mode ....................................................
4.1 0 Sweeping ........................................................................
4.1 1 Modulation ......................................................................
4.12 Coherency ......................................................................
4.13 GPlBAddress .................................................................
.............................................................
4.14 Rear Connectors
Section 5 PerformanceTest and
Calibration
................................... 5-1
5.1 PerformanceTest ........................................................... 5-2
5.2 Calibration
....................................................................... 5-4
Section 6 Maintenance ................................ 6-1
6.1 DailyMaintenance .......................................................... 6-2
6.2 Noteson Storage
............................................................ 6-3
6.3 Retransportation
............................................................. 6-4
6.4 If an Erroris Displayedby Self-check
............................ 6-4
6.5 If a FaultOccurs
............................................................. 6-5
Appendix A Standard .................................. A-I
Appendix B Initial Set Values
..................... B-I
Appendix C Error Codes
............................. C-I
Appendix D PerformanceTest Result
Record Sheet
.......................... D-I
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Section 1 Outline
This chapter outlines the basic functions and operations of this unit. For details on
performanceand function specifications, see Appendix A.
1.1 MG9637A and MG9638AWavelengthTunable
Laser Sources
........................................................... 1-2
1.2 Major Functionsand Operations
............................... 1-2
1.2.1 Successively outputting any wavelength
... CW mode ................................................... 1-2
1.2.2 Sweepingout a set wavelength
... Sweep mode .............................................. 1-3
1.2.3 Settingan output level
... Power/Max Power ..................................... 1-3
1.3 StandardConfiguration
............................................. 1-3
1.4 Options
..................................................................... 1-4
1.5 Application Parts
....................................................... 1-4
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Section 1 Outline
I .I MG9637A and MG9638A Wavelength Tunable
Laser Sources
The MG9637A and MG9638A wavelength tunable laser sources enable the output of
any wavelength. They can also sweep out an output wavelength
in a specific range. In
addition, they enable you to specify a laser output level and select a successive laser
output or modulation laser output (internal or external modulation). These laser
sources are applicable to measure wavelength characteristics of an optical device and
perform experiments with specific wavelengths.
TheMG9637A and MG9638A wavelengthtunablelaser sources provide the GPIB and
RS-232C as remote interfaces. Combining themwith a computer and other measuring
instruments (optical spectrum analyzer, optical power meter, etc.) enables automatic
measurement and synchronous measurement.
1.2 Major Functionsand Operations
1.2.1 Successively outputting any wavelength ... CW mode
To successively output any wavelength, press the CW key; the screen below appears.
Then, press the F1 (wavelength) key and use the ten-key pad to key in "1560."
"1560nm" appears on the right of "Input Wavelength" at the bottom of the screen.
After confirming the input value, finally press the ENTER key. The specification of
the wavelength is then completed. Thelaser output wavelength is 1560nm.
In this explanation, the wavelength is used, but you may set a frequency instead of the
wavelength.
For details, see Section 4.9.1.
I r
, I I.. ..... .i
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1.3 StandardConfiguration
Sweeping out a set wavelength ... Sweep mode
TheMG9637AIMG9638A can sweep out a wavelength by specifying a sweep starting
wavelength,sweepending wavelength, and step wavelength. First press the SWEEP
key; the screen below appears. Then, press the F1 key to highlight "Start" in "Stad
Center." Use the ten-key pad to key in 1540; "1540 nm" appears on the "Input Start
Wavelength"line at the bottom of the screen. Press the ENTER key to adopt the input
value. The sweep starting wavelength is then set to 1540nm. To specify the sweep
endingwavelength, press the F2 key to highlight "Stop" in "Stoplspan"and use the ten-
key pad to key in an input value. To specify the sweep step wavelength, in the same
way as above, press the F3 key to highlight "Sweep Step" and use the ten-key pad to
key in an input value.
In this explanation,the wavelength is used, but you may set a frequency instead of the
wavelength.
For details, see Section 4.9.1.
Dwell The 1 .00s
Power
O1T
1.2.3 Setting an output level ... Power/Max Power
To specifya laser output level in the CW mode, press the CW key to place the unit in
the CW mode. Then, press the F5 (Power) key and use the ten-key pad and enter keys
or rotary knob to specifya level in the input limit range.
1.3 Standard Configuration
Standardaccessories
AC power cord
5-A fuse x 2
Instructionsmanual (this manual)
Remote ControlInstructionsManual
Laser output control key x 2
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Section 1 Outline
1.4 Options
Opticalconnectors
MG%37A MG%38A
E2000 (DIAMOND) connector MG9637A-27 MG9638A-27
EC (RADIAL) connector MG9637A-31 MG9638A-3 1
FC connector MG9637A-37 MG9638A-37
STconnector MG9637A-38 MG9638A-38
DIN (47256) connector MG9637A-39 MG9638A-39
SC connector MG9637A-40 MG9638A-40
HMS-IOIA (DIAMOND) connector MG9637A-43 MG9638A-43
Application Parts
RS-232C cable (9P-9P) J0654A
RS-232C cable (9P-25P) J0655A
GPIB cable (1-m)
Replaceable optical connectors
FC connector
STconnector
DIN (47256) connector
HMS-1OIA (DIAMOND) connector
SCconnector
Optical
fiber cable (2-m)
Fenule cleaner
Ferrule cleanerrefill tape (6 unitslset)
Adapter cleaner (stick type, 200 unitslset)
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Section 2 Nameand Functionof each Part
This chapterdescribesthe name and functionofeach part on the frontandrear panels
of this unit and explains how to useit
.
2.1 Unpacking ................................................................. 2-2
2.2 Name and Functionof each Part
.............................. 2-2
2.3 Front Panel
............................................................... 2-4
2.4 Front Panel
............................................................... 2-6
2.5 Screen Display
.......................................................... 2-8
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