Lasers, Fiber Optics, and Communications

Mitigation of nonlinear interference noise introduced by cross-phase modulation in the dual-polarization 16 QAM wavelength-division multiplexing coherent optical system

[+] Author Affiliations
Bo Zhang

Beijing University of Posts and Telecommunications, State Key Laboratory of Information Photonics and Optical Communications, Beijing, China

Beijing University of Posts and Telecommunications, School of Science, Beijing, China

Bo Liu

Nanjing University of Information Science & Technology, Photoelectric Research Institute, Nanjing, China

Lijia Zhang, Xiangjun Xin, Qi Zhang, Feng Tian, Yongjun Wang, Qinghua Tian, Lan Rao, Yuhan Guo

Beijing University of Posts and Telecommunications, State Key Laboratory of Information Photonics and Optical Communications, Beijing, China

Ru Zhang

Beijing University of Posts and Telecommunications, School of Science, Beijing, China

Opt. Eng. 56(5), 056109 (May 27, 2017). doi:10.1117/1.OE.56.5.056109
History: Received January 18, 2017; Accepted April 26, 2017
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Abstract.  A complex adaptive equalizer using a least-mean-square (LMS) algorithm is proposed to mitigate the effect of nonlinear interference induced by cross-phase modulation in wavelength-division multiplexing (WDM) coherent optical systems. We show the effect of nonlinear interference is equivalent to slow time-varying intersymbol interference. Simulations of dual-polarization 16 quadrature amplitude modulation (QAM) WDM systems are conducted to test the effectiveness of our proposed compensation method. The consequences show that significant improvement in system performance can be achieved by using the adaptive LMS equalization method.

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© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Bo Zhang ; Bo Liu ; Lijia Zhang ; Xiangjun Xin ; Ru Zhang, et al.
"Mitigation of nonlinear interference noise introduced by cross-phase modulation in the dual-polarization 16 QAM wavelength-division multiplexing coherent optical system", Opt. Eng. 56(5), 056109 (May 27, 2017). ; http://dx.doi.org/10.1117/1.OE.56.5.056109


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