In-band OSNR monitoring based on low-bandwidth coherent receiver and tunable laser

Yingqin Peng,Yuli Chen,Qi Sui,Dawei Wang,Dongyu Geng,Freddy Fu, Zhaohui Li

Frontiers of Optoelectronics（2016）

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摘要

An in-band optical signal-to-noise ratio (OSNR) monitoring technique with high resolution and large measurement range is demonstrated based on lowbandwidth coherent receiver and a tunable laser. The measurement range of OSNR is from 10 to 25 dB and the resolution can be controlled about ± 1 dB.

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关键词

optical performance monitoring (OPM),optical signal-to-noise ratio (OSNR),coherent communication,tunable laser

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