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Optical Engineering

Mitigation of nonlinear interference noise introduced by cross-phase modulation in the dual-polarization 16 QAM wavelength-division multiplexing coherent optical system
Author(s): Bo Zhang; Bo Liu; Lijia Zhang; Xiangjun Xin; Ru Zhang; Qi Zhang; Feng Tian; Yongjun Wang; Qinghua Tian; Lan Rao; Yuhan Guo
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Paper 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.

Paper Details

Date Published: 27 May 2017
PDF: 8 pages
Opt. Eng. 56(5) 056109 doi: 10.1117/1.OE.56.5.056109
Published in: Optical Engineering Volume 56, Issue 5
Show Author Affiliations
Bo Zhang, Beijing Univ. of Posts and Telecommunications (China)
Bo Liu, Nanjing Univ. of Information Science & Technology (China)
Lijia Zhang, Beijing Univ. of Posts and Telecommunications (China)
Xiangjun Xin, Beijing Univ. of Posts and Telecommunications (China)
Ru Zhang, Beijing Univ. of Posts and Telecommunications (China)
Qi Zhang, Beijing Univ. of Posts and Telecommunications (China)
Feng Tian, Beijing Univ. of Posts and Telecommunications (China)
Yongjun Wang, Beijing Univ. of Posts and Telecommunications (China)
Qinghua Tian, Beijing Univ. of Posts and Telecommunications (China)
Lan Rao, Beijing Univ. of Posts and Telecommunications (China)
Yuhan Guo, Beijing Univ. of Posts and Telecommunications (China)


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