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

doi:10.1007/s12200-016-0602-7

Front. Optoelectron. ›› 2016, Vol. 9 ›› Issue (3) : 526 -530. DOI: 10.1007/s12200-016-0602-7

RESEARCH ARTICLE

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

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Abstract

An in-band optical signal-to-noise ratio (OSNR) monitoring technique with high resolution and large measurement range is demonstrated based on low-bandwidth 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.

Keywords

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

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Yingqin PENG, Yuli CHEN, Qi SUI, Dawei WANG, Dongyu GENG, Freddy FU, Zhaohui LI. In-band OSNR monitoring based on low-bandwidth coherent receiver and tunable laser. Front. Optoelectron., 2016, 9(3): 526-530 DOI:10.1007/s12200-016-0602-7