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ILX Lightwave OMH-6722B User Manual

Silicon power / wavehead
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User's Guide
Silicon Power / Wavehead
OMH-6722B
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 406-586-9405
·
ilx.custhelp.com
www.ilxlightwave.com
70023304_02 March 2014

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  • Page 1 User’s Guide Silicon Power / Wavehead OMH-6722B 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 406-586-9405 · ilx.custhelp.com www.ilxlightwave.com 70023304_02 March 2014...
  • Page 2 Downloaded from StockCheck.com...

  • Page 3: Table Of Contents

    Specifications ........... 3  03_14 OMH-6722B Downloaded from StockCheck.com...
  • Page 4 Resetting the User Calibration ........17  OMH-6722B Downloaded from StockCheck.com...
  • Page 5 Troubleshooting Guide ......... . . 19  03_14 OMH-6722B Downloaded from StockCheck.com...
  • Page 6 TA B L E O F C O N T E N T S  OMH-6722B Downloaded from StockCheck.com...

  • Page 7: List Of Figures

    Figure 2.3 Power Analog Out ....... 8 Figure 2.4 OMH-6722B Optical Measurement Head ... . . 9 Figure 2.5 Wavelength Setting .
  • Page 8 L I S T O F F I G U R E S  OMH-6722B Downloaded from StockCheck.com...

  • Page 9: List Of Tables

    L I S T O F TA B L E S IST OF ABLES   03_14 OMH-6722B Downloaded from StockCheck.com...
  • Page 10 L I S T O F TA B L E S viii  OMH-6722B Downloaded from StockCheck.com...

  • Page 11: Safety And Warranty Information

    • 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 xiii).

  • Page 12: Safety Symbols

    Terminal On: In position of a bistable push control. Off: Out position of a bistable push control. The slash (I) only denotes that mains are on. The circle (O) only denotes that mains are off.  OMH-6722B Downloaded from StockCheck.com...

  • Page 13: Warranty

    Returning an Instrument If an instrument is to be shipped to ILX Lightwave for repair or service, be sure to: Obtain a Return Authorization number (RA) from ILX Customer Service.
  • Page 14 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.  OMH-6722B Downloaded from StockCheck.com...

  • Page 15: Comments, Suggestions, And Problems

    WA R R A N T Y 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.
  • Page 16 WA R R A N T Y 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!  OMH-6722B Downloaded from StockCheck.com...

  • Page 17: Introduction And Specifications

     This manual contains operation and maintenance information for the OMH-6722B Silicon Power / Wave Head. The OMH-6722B may be used in conjunction with either the OMM-6810B Optical Multimeter or the LPA-9080 Laser Diode Parameter Analyzer. To get started immediately, first read Appendix B of the OMM-6810B Instruction Manual.

  • Page 18: Available Options And Accessories

    C H A P T E R Product Overview Refer Servicing only to qualified, authorized personnel. Available Options and Accessories The OMH-6722B must be coupled to the OMM-6810B Optical Multimeter. Other options and accessories available with the OMM-6810B are listed in the OMM-6810B manual. ...

  • Page 19: Specifications

    Log Power -99.999 to 99.999 dBm / dB Resolution (Slow Update Rate) Linear Power 0.001 pW Log Power 0.001 dB Resolution (Medium / Fast Update Rate) Linear Power 0.01 pW Log Power 0.01 dB 03_14 OMH-6722B  Downloaded from StockCheck.com...
  • Page 20 Our goal is to design and produce the best optical test equipment 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.  OMH-6722B Downloaded from StockCheck.com...

  • Page 21: Chapter 2 Operation

    Chapter 2 of the OMM-6810B Instruction Manual. Installation The OMH-6722B must be connected to the 6810B. Make sure the power to the main unit is turned off and connect the cable from the 6722B to the INPUT connector on the rear panel of the 6810B.

  • Page 22: Power-Up

    The OMM-6810B/OMH-6722B is intuitively operated from the front panel keypad, indicator LEDs and dual displays. A drawing of the front panel is shown in Figure 2.1. Front panel functions which are not available with the OMH-6722B are outlined later in this Chapter.

  • Page 23: Unused Functions

    See Appendix A in the OMM-6810B Instruction Manual for a detailed list of error messages. Rear Panel Connections The OMH-6722B interfaces with the rear panel of the multimeter as described in the following paragraphs. Input Connector The OMH-6722B interfaces the Multimeter via the 26-pin high density “D”...

  • Page 24: Analog Output

    For example, if the full scale power for gain range three is 10  W and the displayed power is 5.000  W, then 5.0 volts is present on the POWER ANALOG OUT connector. Figure 2.3 Power Analog Out  OMH-6722B Downloaded from StockCheck.com...

  • Page 25: General Operating Procedures

    Beam Alignment Considerations The OMH-6722B is designed to provide a simple operating format. The beam from the source should be directed perpendicular to the face of the 6722B and directly into its aperture.

  • Page 26: Diverging Beams (Laser Diodes)

    General Operating Procedures Diverging Beams (Laser Diodes) The OMH-6722B can measure the wavelength and power of laser diodes without the need for complicated coupling optics. For low powered lasers and laser diodes, position the package as close as possible to the 6722B to insure that all of the light enters the integrating sphere.

  • Page 27: Zeroing

    "noise". If the entry aperture to the allow the OMH-6722B is blocked instead, the zeroing function will not work properly. This is especially true for low power applications or in areas of high background light. • If the DISPLAY ZERO indicator is illuminated, press the DISPLAY ZERO button once to disable the existing compensation factors.

  • Page 28: User Calibration

    C H A P T E R General Operating Procedures User Calibration It is possible to calibrate the OMH-6722B using a laser source of known power and wavelength. The calibration procedure is described in Chapter 6 of this manual. Press the CAL USER button to toggle the instrument in and out of the User Calibration Mode.

  • Page 29: Installing Fiber Optic Adapters

    C H A P T E R Installing Fiber Optic Adapters Installing Fiber Optic Adapters Use the following procedure to install Fiber Optic Adapters onto the OMH-6722B Measurement Head. • Locate the model AO270 threaded ring adapter and the two #2-56 X 3/16” cap screws that secure it to the Measurement Head.
  • Page 30 O P E R A T I O N C H A P T E R Care and Maintenance  OMH-6722B Downloaded from StockCheck.com...

  • Page 31: Chapter 3 Calibration

    Do not attempt to disassemble the Optical Measurement Head. Calibration Overview It is possible to calibrate the OMH-6722B using a source of known wavelength and power. Calibrate the 6722B whenever performance verification indicates that calibration is necessary. The wavelength calibration consists of one point which shifts future measurements by the amount of the calibration.

  • Page 32: Manual Operation User Calibration

    • Identify ambient conditions and zero the instrument as described in Section 2.6.4. • Launch a laser of known wavelength and power into the OMH-6722B. • Start the calibration by pressing the CAL USER button to place the unit in User Calibration Mode.

  • Page 33: Programming A Fixed Offset To Wavelength And Power Measurements

    Resetting the User Calibration The User Calibration is preset at the factory. The factory preset calibration can be restored by pressing the CAL USER button on the 6810B so that the CAL USER indicator is off. 03_14 OMH-6722B  Downloaded from StockCheck.com...
  • Page 34 C A L I B R A T I O N C H A P T E R Resetting the User Calibration  OMH-6722B Downloaded from StockCheck.com...
  • Page 35 This chapter is intended to be used as a guide when the OMM-6810B and OMH-6722B do not perform as expected. It is not a service manual, rather a guide to alleviate basic problems which may arise during operation. A more complete guide, including a GPIB troubleshooting guide, is provided in Chapter 7 of the OMM-6810B Instruction Manual.
  • Page 36 Troubleshooting Guide Symptom Causes and Corrective Actions • The OMH-6722B is designed to accurately measure the Measurement will not wavelength of a CW source with an amplitude instability of up to stabilize 40% depth of modulation. Ensure the laser source’s wavelength is stable and that any modulation is minimized.

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