ILX Lightwave OMM-6810B User manual

User’s Guide
70034103 January 2010
Optical Power and Wavelength Meter
OMM-6810B
ILX Lightwave Corporation · 31950 Frontage Road · Bozeman, MT, U.S.A. 59715 · U.S. & Canada: 1-800-459-9459 · International Inquiries: 406-556-2481 · Fax [phone]
ilx.custhelp.com ·www.ilxlightwave.com

TABLE OF CONTENTS
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TABLE OF CONTENTS
Safety Information and the Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
General Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Safety Marking Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
Comments, Suggestions, and Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Chapter 1 Introduction and Specifications
Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Available Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Chapter 2 Installation and Operation
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
AC Power Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Tilt-Foot Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Power-Up Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Front Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
General Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Left Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Right Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Bargraph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Buttons/Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

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Local Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
GPIB Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Power Autoranging/Manual Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Power Up / Down Arrow Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Wavelength Automatic / Manual Control . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Setting the Wavelength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Wavelength Store l Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Wavelength Recall l Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
WAVELENGTH Left/Right/Up/Down Arrow Switches . . . . . . . . . . . . . . . . 14
User Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Zeroing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Power Display Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Wavelength Display Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Delta Power Display Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Delta Lambda Display Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
View Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Brightness Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Zoom Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Rate Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Hold Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Error Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Rear Panel Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
AC Power Entry Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
GPIB Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Optical Measurement Head Input Connector . . . . . . . . . . . . . . . . . . . . . . . . 19
Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
General Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Warm-up and Environmental Considerations . . . . . . . . . . . . . . . . . . . . . . . . 20
Other Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Chapter 3 GPIB/IEEE 488.2 Remote Operation
Preparation for GPIB Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
GPIB Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
GPIB Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
ANSI/IEEE-488.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Syntax Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
<white space> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
<nrf value> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

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<suffix unit> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
<PROGRAM MESSAGE TERMINATOR> . . . . . . . . . . . . . . . . . . . . . . . . . . 26
<PROGRAM MESSAGE UNIT SEPARATOR> . . . . . . . . . . . . . . . . . . . . . . 26
<PROGRAM HEADER SEPARATOR> . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
<compound command program header> . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
<PROGRAM DATA> (Parameters) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
<ARBITRARY BLOCK PROGRAM DATA> . . . . . . . . . . . . . . . . . . . . . . . . . 28
<PROGRAM DATA SEPARATORS> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Power-On Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Default Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Getting Started with GPIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Overview of the OMM-6810B Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Using Commands with Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Substitute Parameter Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Multiple Parameter Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Queries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Terminators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Common Commands and Queries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Advanced Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Status Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Device Dependent Event and Condition Registers . . . . . . . . . . . . . . . . . . . . 44
Operation Complete Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Command Timing and Completion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Input Buffer and Output Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Remote Interface Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Interface Function Subsets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Remote Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Non-Supported Remote Interface Messages . . . . . . . . . . . . . . . . . . . . . . . . 46
Chapter 4 Command Reference
Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Commands and Queries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Substitute Parameter Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

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Compound Command Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Common Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
OMM-6810B Device-Dependent Commands . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Command Paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
OMM-6810B Device-Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . 55
Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Programming Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Chapter 5 Maintenance
Calibration Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Recommended Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Warm-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Resetting the Factory Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Line Voltage Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Chapter 6 Troubleshooting
Hardware Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
GPIB Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Appendix A Error Messages
Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Appendix B Quick Start Guide
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Power and/or Wavelength Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
More Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

OMM-6810B v
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SAFETY AND WARRANTY INFORMATION
The Safety and Warranty Information section provides details about cautionary
symbols used in the manual, safety markings used on the instrument, and
information about the Warranty including Customer Service contact information.
Safety Information and the Manual
Throughout this manual, you will see the words Caution and Warning indicating
potentially dangerous or hazardous situations which, if not avoided, could result in
death, serious or minor injury, or damage to the product. Specifically:
Caution indicates a potentially hazardous situation which can result in minor or
moderate injury or damage to the product or equipment.
Warning indicates a potentially dangerous situation which can result in serious injury or
death.
WARNING
Visible and/or invisible laser radiation. Avoid direct exposure to the beam.
General Safety Considerations
If any of the following conditions exist, or are even suspected, do not use the
instrument until safe operation can be verified by trained service personnel:
•Visible damage
•Severe transport stress
•Prolonged storage under adverse conditions
•Failure to perform intended measurements or functions
If necessary, return the instrument to ILX Lightwave, or authorized local ILX
Lightwave distributor, for service or repair to ensure that safety features are
maintained (see the contact information on page ix).
All instruments returned to ILX Lightwave are required to have a Return
Authorization Number assigned by an official representative of ILX Lightwave
Corporation. See Returning an Instrument on page vii for more information.

SAFETY SYMBOLS
vi OMM-6810B
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SAFETY SYMBOLS
This section describes the safety symbols and classifications.
Technical specifications including electrical ratings and weight are included within
the manual. See the Table of Contents to locate the specifications and other
product information. The following classifications are standard across all ILX
Lightwave products:
•Indoor use only
•Ordinary Protection: This product is NOT protected against the harmful ingress of moisture.
•Class I Equipment (grounded type)
•Mains supply voltage fluctuations are not to exceed ±10% of the nominal supply voltage.
•Pollution Degree II
•Installation (overvoltage) Category II for transient overvoltages
•Maximum Relative Humidity: <80% RH, non-condensing
•Operating temperature range of 0 °C to 40 °C
•Storage and transportation temperature of –40 °C to 70 °C
•Maximum altitude: 3000 m (9843 ft.)
•This equipment is suitable for continuous operation.
Safety Marking Symbols
This section provides a description of the safety marking symbols that appear on
the instrument. These symbols provide information about potentially dangerous
situations which can result in death, injury, or damage to the instrument and other
components.
Caution,
refer to
manual
Earth
ground
Te r m i n a l
Alternating
current
Visible and/or
invisible laser
radiation
Caution, risk
of electric
shock
Protective
Conductor
Te r m i n a l
Caution, hot
surface
Frame or
chassis
Te r m i n a l
On: In position of a bistable push control.
The slash (I) only denotes that mains are on.
Off: Out position of a bistable push control.
The circle (O) only denotes that mains are off.
or
(I)
or
(O)

WAR RANTY
01_10 OMM-6810B vii

WARRANTY
ILX LIGHTWAVE CORPORATION warrants this instrument to be free from
defects in material and workmanship for a period of one year from date of
shipment. During the warranty period, ILX will repair or replace the unit, at our
option, without charge.
Limitations
This warranty does not apply to fuses, lamps, defects caused by abuse,
modifications, or to use of the product for which it was not intended.
This warranty is in lieu of all other warranties, expressed or implied, including any
implied warranty of merchantability or fitness for any particular purpose. ILX
Lightwave Corporation shall not be liable for any incidental, special, or
consequential damages.
If a problem occurs, please contact ILX Lightwave Corporation with the
instrument's serial number, and thoroughly describe the nature of the problem.
Returning an Instrument
If an instrument is to be shipped to ILX Lightwave for repair or service, be sure to:
1Obtain a Return Authorization number (RA) from ILX Customer Service.
2Attach a tag to the instrument identifying the owner and indicating the required service or
repair. Include the instrument serial number from the rear panel of the instrument.
3Attach the anti-static protective caps that were shipped with the instrument and place the
instrument in a protective anti-static bag.
4Place the instrument in the original packing container with at least 3 inches (7.5 cm) of
compressible packaging material. Shipping damage is not covered by this warranty.
5Secure the packing box with fiber reinforced strapping tape or metal bands.
6Send the instrument, transportation pre-paid, to ILX Lightwave. Clearly write the return
authorization number on the outside of the box and on the shipping paperwork. ILX
Lightwave recommends you insure the shipment.
If the original shipping container is not available, place your instrument in a
container with at least 3 inches (7.5 cm) of compressible packaging material on all
sides.
Repairs are made and the instrument returned transportation pre-paid. Repairs
are warranted for the remainder of the original warranty or for 90 days, whichever
is greater.

WAR RANTY
viii OMM-6810B

Claims for Shipping Damage
When you receive the instrument, inspect it immediately for any damage or
shortages on the packing list. If the instrument is damaged, file a claim with the
carrier. The factory will supply you with a quotation for estimated costs of repair.
You must negotiate and settle with the carrier for the amount of damage.

WAR RANTY
01_10 OMM-6810B ix

Comments, Suggestions, and Problems
To ensure that you get the most out of your ILX Lightwave product, we ask that
you direct any product operation or service related questions or comments to ILX
Lightwave Customer Support. You may contact us in whatever way is most
convenient:
Phone . . . . . . . . . . . . . . . . . . . . . . . . . . . [phone] or [phone]
Fax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [phone]
On the web at: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ilx.custhelp.com
Or mail to:
ILX Lightwave Corporation
P. O. Box 6310
Bozeman, Montana, U.S.A 59771
www.ilxlightwave.com
When you contact us, please have the following information:
If ILX Lightwave determines that a return to the factory is necessary, you are
issued a Return Authorization (RA) number. Please mark this number on the
outside of the shipping box.
You or your shipping service are responsible for any shipping damage when
returning the instrument to ILX Lightwave; ILX recommends you insure the
shipment. If the original shipping container is not available, place your instrument
Model Number:
Serial Number:
End-user Name:
Company:
Phone:
Fax:
Description of what is
connected to the ILX
Lightwave instrument:
Description of the problem:

WAR RANTY
x OMM-6810B

in a container with at least 3 inches (7.5 cm) of compressible packaging material
on all sides.
We look forward to serving you even better in the future!

OMM-6810B 1
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CHAPTER 1
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INTRODUCTION AND SPECIFICATIONS
This manual contains operation and maintenance information for the OMM-6810B
Optical Power and Wavelength Meter. If you want to get started immediately, read
Appendix B, Quick Start, first. Chapter 2 contains a detailed reference for control
of the 6810B front panel. Use Chapters 3 and 4 as a guide for controlling the
instrument remotely via the IEEE-448 bus (GPIB).
Information specific to each unique Optical Measurement Head (OMH) is provided
in that instrument's Instruction Manual. The data provided in this document is
particular to the OMM-6810B only.
Product Overview
The OMM-6810B Optical Power and Wavelength Meter is a microprocessor
controlled instrument capable of measuring and displaying optical power and
wavelength simultaneously. Specifically designed to interface with a variety of ILX
Lightwave measurement heads, the OMM-6810B is for general laboratory optical
power and wavelength measurements of laser diodes and other laser sources.
This instrument can also be integrated with other equipment via the GPIB/IEEE-
488.2 interface.
Easy mounting, quick setup and alignment, and a two meter cable make the ILX
Lightwave measurement heads easy to integrate into an experiment.
Measurement performance and overall accuracy is dependent upon which Optical
Measurement Head is used in conjunction with the 6810B. All measurement
heads are calibrated to NIST traceable standards to ensure accuracy.
Safety Considerations
The high brightness, sometimes invisible light output of laser diodes and other
laser sources poses a definite eye hazard. Direct viewing of the laser output can
produce retinal or corneal damage. Absorption of the laser light by the eye
causes localized heating and denaturing of tissue proteins. The ANSI publication

INTRODUCTION AND SPECIFICATIONS
Product Overview
2 OMM-6810B
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
Z-136.1, "The Safe Use of Lasers", lists Maximum Permissible Exposure (MPE)
levels for direct, or intrabeam viewing of laser beams. From the MPE levels, a
"hazard zone" may be computed for a particular laser and exposure time.
For more information concerning laser and laser diode safety, contact the Center
for Devices and Radiological Health or ILX Lightwave.
Refer Servicing to only to qualified, authorized personnel.

INTRODUCTION AND SPECIFICATIONS
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01_10 OMM-6810B 3
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
Available Options and Accessories
Options and accessories available with the OMM-610B include the following:
Description Model Number
Silicon PowerHead
(1W Power Measurement, 400 - 1100 nm) OMH-6703B
InGaAs Power Head
(100 mW Power Measurement; 800 - 1600 nm) OMH-6708B
Silicon Power / WaveHead
(1W Power and Wavelength Measurement, 400 - 1100 nm) OMH-6722B
InGaAs Power / WaveHead
(1W Power and Wavelength Measurement, 950 - 1650 nm) OMH-6727B
Silicon Power / WaveHead
(1W Power and Wavelength Measurement, 350 - 530 nm) OMH-6732B
Silicon Power / WaveHead
(1W Power and Wavelength Measurement, 830 -1100 nm) OMH-6780B
Silicon Power / WaveHead
(10 W Power and Wavelength Measurement, 830 - 1100 nm) OMH-6790B
InGaAs Power / WaveHead
(10W Power and Wavelength Measurement, 1200 - 1650 nm) OMH-6795B
Head Mounting Kit MK-650
DIN Adapter (6709B, 6745B) AO226
FC Adapter (6703B, 6708B, 6722B, 6727B) AO271
ST Adapter (6703B, 6708B, 6722B, 6727B) AO272
SC Adapter (6703B, 6708B, 6722B, 6727B) AO273
DIN Adapter (6703B, 6708B, 6722B, 6727B) AO276
FC Adapter (6780B, 6790B, 6795B) CA-100
SC Adapter (6780B, 6790B, 6795B) CA-150
LC Adapter (6780B, 6790B, 6795B) CA-20001
Bare Firber Adapter Ring (6780B, 6790B, 6795B) CA-120
Bare Fiber Adapter Ring
(6703B, 6780B, 6722B, 6727B, 6709B, 6745B) AO120
Dual Rack Mounting Kit RM-123
Single Rack Mounting Kit RM-125

INTRODUCTION AND SPECIFICATIONS
Specifications
4 OMM-6810B
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
Specifications
Electrical performance and general specifications for the OMM-6810B are listed
below. The electro-optic performance specs can be found in the instruction
manual for each optical measurement head. All electrical parameters are
measured at 25oC.
Multimeter Electrical Specifications
Input Specifications
Gain Ranges 0 to 7 (10 mA, 1 mA, 100 A, 10 A, 1 A, 100 nA,
10 nA, 1 nA)
Accuracy < +0.2% of full scale, all ranges
Linearity +0.1%
Noise Floor < 1 pA
Temperature Coefficient < 500 ppm / oC
Stability
Short Term (10 minutes)
Long Term (24 hours) <100 ppm
<500 ppm
Input Bandwidth
Fast
Medium
Slow
60 Hz
10 Hz
1 Hz
Display Update Period
Fast
Medium
Slow
60 msec (1 sample)
240 msec (4 samples)
960 msec (16 samples)
Analog Output Specifications
Analog Output An uncalibrated voltage output representing the
measured power as a percent of full scale within the
selected gain range
Voltage 0 to 10 volts
Bandwidth 60 Hz (Gain ranges 0 - 5)
30 Hz (Gain range 6)
5 Hz (Gain range 7)
Display Specifications
Left Display (Power Display)
Type 6 digit, 7 segment green LED
Units - Linear Power
Units - Log Power pW, nW, W, mW, W
dBm, dB

INTRODUCTION AND SPECIFICATIONS
Specifications
01_10 OMM-6810B 5
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
1. Antistatic covers are included on all connectors. These covers should remain in place when the instrument is not in use to prevent a
static discharge from damaging the instrument.
Range - Linear Power
Range - Log Power 0.000 pW to 999.99 W
-99.999 to 99.999 dBm / dB
Resolution (Slow Update Rate)
Linear Power
Log Power 0.001 pW
0.001 dB
Resolution (Medium and Fast Update Rate)
Linear Power
Log Power 0.01 pW
0.01 dB
Right Display (Wavelength Display)
Type 5 digit, 7 segment green LED
Units - Wavelength nm, cm-1
Range - Wavelength 190 to 30,000 nm, 52632 to 333 cm-1
Resolution - Wavelength 0.1 nm, 0.1 cm-1
Bargraph 16 segment green LED representing the percent of
full scale power within the selected gain range
Zoom Performs a x10 function on the bargraph display
Brightness 5 settings incrementally spaced from darkest to
brightest
General Specifications
Connectors
Analog Output
GPIB Connector
OMH Connector
BNC, Female
IEEE 488.1 - 1987 Standard
26 pin High-Density sub-D
GPIB Meets ANSI/IEEE Standard 488.1 - 1987
Meets ANSI/IEEE Standard 488.2 - 1987
SH1, AH1, T6, L4, SR1, RL1, PP0, DC1, DT0, C0,
E1; all functions remotely controllable except for
power on and the GPIB address
Power (50 to 60 Hz) 100 V, +10%
120 V, +10%
220 V, +10%
230-240 V, +10%
Operating Temperature 10oC to 40oC
Storage Temperature -40oC to +70oC
Humidity < 85% RH, non-condensing
Overall Dimensions (H x W x D) 89mm x 217mm x 313mm
Weight < 2.5 kg (5.5 lbs)
Warm-up 1 hour

INTRODUCTION AND SPECIFICATIONS
Specifications
6 OMM-6810B
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Our goal is to make the best laser diode instrumentation available anywhere. To
achieve this, we need your ideas and comments on ways we can improve out
products. We invite you to contact us at any time with your suggestions.

OMM-6810B 7
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CHAPTER 2
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INSTALLATION AND OPERATION
This chapter describes how to install, adjust, and operate the OMM-6810B. It is
divided into five sections covering installation, power-up, front panel and rear
panel controls, and general operation.
Appendix B, Quick Start, is intended for users who wish to begin operation
immediately. It contains the minimum amount of information required to safely
operate the instrument.
Installation
AC Power Considerations
The device can be configured to operate at nominal line voltages of 100, 120, 220,
or 240 VAC. This configuration is normally done at the factory and need not be
changed before operating the instrument. Ensure the voltage printed on the back
panel of the instrument matches the power-line voltage in your area. Refer to
Chapter 6, Maintenance, should it be necessary to reconfigure the input AC
voltage range.
To avoid electrical shock hazard, connect the instrument to a properly earth grounded,
three prong receptacle only. Failure to observe this precaution can result in severe injury
or death.
Tilt-Foot Adjustment
The instrument has front legs that extend to make it easier to view the display.
Place the OMM-6810B on a stable base and rotate the feet downward until they
lock into position.

INSTALLATION AND OPERATION
Power-Up Sequence
8 OMM-6810B
CHAPTER 2
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Rack Mounting
The OMM-6810B may be rack mounted by installing a rack mount flange on each
side of the enclosure. Detailed installation instructions are included with the rack
mount kit. Refer to Chapter 1 for applicable rack mount accessory part numbers.
Power-Up Sequence
Connect the instrument to an AC power source. Press the POWER switch to
supply power to the device and start the power-up sequence.
The power-up sequence takes about six seconds. Initially, all LEDs and
enunciators are illuminated and the seven-segment displays denote "8". Then, all
LEDs and the displays are turned off while the microprocessor executes a device
self-test. Should the self test fail, error message E-720 is displayed. The device
then loads personality and calibration data from the measurement head. The
OMH model number is shown on the left display and the firmware version is
shown on the right display. If an error occurs while loading data, message E-711
is displayed. If a incompatible head is connected, E-713 is displayed. If a
measurement head is not connected both displays show "------" until a head is
attached. Refer Appendix A for a detailed explanation of error messages.
Table 2.1 OMM-6810B Default Settings
POWER ONLY HEADS POWER AND
WAVELENGTH HEADS
POWER AUTO ON ON
ATTN OFF Not Used
AUTO WAVE OFF ON
USER CAL OFF OFF
ZERO OFF OFF
ZOOM OFF OFF
BRIGHTNESS BRIGHTEST BRIGHTEST
RATE MEDIUM MEDIUM
LEFT DISPLAY P (lin) P (lin)
RIGHT DISPLAY (nm) (nm)