Calibration and monitoring of coherent optical transceiver imperfections

Yangyang Fan; Yufeng Jiang; Zhenning Tao; Hisao Nakashima; Takeshi Hoshida

doi:10.1117/12.2544691

11 May 2020 Calibration and monitoring of coherent optical transceiver imperfections

Yangyang Fan, Yufeng Jiang, Zhenning Tao, Hisao Nakashima, Takeshi Hoshida

Proceedings Volume 11309, Next-Generation Optical Communication: Components, Sub-Systems, and Systems IX; 113090N (2020) https://doi.org/10.1117/12.2544691
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

Optical transceiver imperfection including device bandwidth limitation, various tributary imbalances and even the PCB induced long-memory ripple and tributary crosstalk is one of the biggest obstacles impeding the high-order QAM coherent systems towards 100GBaud and beyond. Generally, the static imperfections could be calibrated at the preservice stage. The dynamic imperfections should be handled at the in-service stage. This talk will firstly review the instrument-free calibration process for the pre-service stage. Then various digital monitors for diagnosis and fault allocation either at pre-service stage or in-service stage, relying on the inherent monitoring function of receiver-side digital equalizers and the machine learning tool, will also be reviewed.

Citation Download Citation

Yangyang Fan, Yufeng Jiang, Zhenning Tao, Hisao Nakashima, and Takeshi Hoshida "Calibration and monitoring of coherent optical transceiver imperfections", Proc. SPIE 11309, Next-Generation Optical Communication: Components, Sub-Systems, and Systems IX, 113090N (11 May 2020); https://doi.org/10.1117/12.2544691

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