We propose a novel in-band optical signal-to-noise ratio (OSNR) monitoring method based on polarization interference. The method realizes a monitoring accuracy of ±0.5 dB within the range of 9-34 dB. Our results indicate that the proposed method is transparent to bitrate and modulation format, as well as independent of polarization mode dispersion and chromatic dispersion.
© 2013 Chinese Optics Letters
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4510) Fiber optics and optical communications : Optical communications
(350.2460) Other areas of optics : Filters, interference
Fiber Optics and Optical Communications
Wenyu Peng, Lixia Xi, Xuan Weng, Xia Zhang, Donghe Zhao, and Xiaoguang Zhang, "Novel in-band OSNR monitoring method based on polarization interference," Chin. Opt. Lett. 11, 080604- (2013)