Operator’s Manual Optical Modulation Analyzer Optical Modulation Analyzer Operator’s Manual August, 2016 700 Chestnut Ridge Road Chestnut Ridge, NY 10977 (845) 425-2000 teledynelecroy.com Optical Modulation Analyzer Operator’s Manual © 2016 Teledyne LeCroy, Inc. All rights reserved. Unauthorized duplication of Teledyne LeCroy documentation materials other than for internal sales and distribution purposes is strictly prohibited. However, clients are encouraged to duplicate and distribute Teledyne LeCroy documentation internally for their own educational purposes. LabMaster, X-Stream, and Teledyne LeCroy are trademarks of Teledyne LeCroy, Inc. Other product or brand names are trademarks or requested trademarks of their respective holders. Information in this publication supersedes all earlier versions. Specifications are subject to change without notice. 927295-00 Rev A August, 2016 Operator’s Manual Contents About This Manual ................................................................................................................. iv Definitions ................................................................................................................................. iv About Teledyne LeCroy ............................................................................................................ iv About Coherent Solutions ........................................................................................................ iv Introduction ........................................................................................................................... 1 Shipped Items ........................................................................................................................... 2 OMA Accessories ..................................................................................................................... 2 Coherent Receiver Features ..................................................................................................... 3 LabMaster Real-Time Oscilloscope ......................................................................................... 4 Compatible Hardware ............................................................................................................... 4 OMA System Architecture ........................................................................................................ 5 Safety ................................................................................................................................... 7 Symbols .................................................................................................................................... 7 Oscilloscope Precautions ......................................................................................................... 7 Coherent Receiver Precautions ................................................................................................ 8 Operating Environment............................................................................................................. 8 Cooling ...................................................................................................................................... 9 Cleaning .................................................................................................................................... 9 Calibration ................................................................................................................................. 9 Lifting and Moving .................................................................................................................... 9 Power ...................................................................................................................................... 10 Fuse Replacement .................................................................................................................. 10 Grounding ............................................................................................................................... 10 System Installation .............................................................................................................. 11 Hardware Configuration ......................................................................................................... 11 Optical Configuration ............................................................................................................. 14 Coherent Receiver LCD Control Interface .............................................................................. 20 Navigating the LCD Control Interface .................................................................................... 20 Changing Numerical Values ................................................................................................... 20 Changing Numerical Units ..................................................................................................... 20 Changing Step Size ................................................................................................................ 21 Changing the Output Power ................................................................................................... 21 i Optical Modulation Analyzer Preparing for Optimal Measurements ................................................................................... 22 Warm Up ................................................................................................................................. 22 Deskew Channels ................................................................................................................... 22 Adjust Signal Pre-Processing ................................................................................................. 23 Using the Optical Modulation Analyzer Software ................................................................... 24 Starting the OMA Software .................................................................................................... 24 Acquisition Controls ............................................................................................................... 25 Optical Inputs ......................................................................................................................... 26 Electrical Inputs ...................................................................................................................... 29 Signal Processing ................................................................................................................... 32 Graphs ..................................................................................................................................... 39 Measurements ........................................................................................................................ 45 Using Custom MATLAB Scripts ............................................................................................. 50 Using X-Stream Browser ...................................................................................................... 51 Applying Math and Measurements to OMA Data ................................................................... 52 Applying Math Functions ....................................................................................................... 52 Applying Measurements ........................................................................................................ 53 Maintenance ........................................................................................................................ 54 Troubleshooting ..................................................................................................................... 54 Technical Support .................................................................................................................. 55 Returning a Product ............................................................................................................... 56 Warranty.................................................................................................................................. 57 Certifications .......................................................................................................................... 58 Appendix 1: OMA Calibration ................................................................................................ 61 Coherent Receiver Factory Calibrations ................................................................................ 61 Full System Factory Calibrations ........................................................................................... 61 Manual Calibrations ............................................................................................................... 61 Dynamic Calibrations ............................................................................................................. 61 Appendix 2: OMA Algorithms ................................................................................................ 62 Dispersion Compensation ...................................................................................................... 62 Polarization De-multiplexing .................................................................................................. 63 Frequency Estimation ............................................................................................................ 64 Phase Estimation ..................................................................................................................