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Proceedings Paper

Calibration and monitoring of coherent optical transceiver imperfections
Author(s): Yangyang Fan; Yufeng Jiang; Zhenning Tao; Hisao Nakashima; Takeshi Hoshida
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Paper 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.

Paper Details

Date Published: 11 May 2020
PDF: 7 pages
Proc. SPIE 11309, Next-Generation Optical Communication: Components, Sub-Systems, and Systems IX, 113090N (11 May 2020); doi: 10.1117/12.2544691
Show Author Affiliations
Yangyang Fan, Fujitsu R&D Ctr. (China)
Yufeng Jiang, Fujitsu R&D Ctr. (China)
Zhenning Tao, Fujitsu R&D Ctr. (China)
Hisao Nakashima, Fujitsu Limited (Japan)
Takeshi Hoshida, Fujitsu Limited (Japan)

Published in SPIE Proceedings Vol. 11309:
Next-Generation Optical Communication: Components, Sub-Systems, and Systems IX
Guifang Li; Xiang Zhou, Editor(s)

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