期刊
OPTICS COMMUNICATIONS
卷 282, 期 12, 页码 2421-2425出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2009.03.002
关键词
Coherent detection; Digital signal processing; Intra-channel nonlinearities; Optical fiber communication
类别
资金
- National Hi-tech Research and Development Program of China [2006AA01Z253, 2006AA01Z261]
- National Natural Science Foundation of China [60877045, 60736003]
- Fujitsu China
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
- Alexander von Humboldt foundation
A novel nonlinear electrical equalizer (NLEE) based on Volterra theory is proposed for mitigating intra-channel nonlinearities in pseudo-linear coherent optical communication systems. According to the temporal matching condition of intra-channel nonlinear pulse interactions, we just select specific nonlinear terms and reduce the computation complexity considerably. Numerical simulations of 10GBaud coherent quadrature phase-shift keying (QPSK) transmission show that the simplified NLEE can efficiently mitigate intra-channel nonlinearities. (C) 2009 B.V. All rights reserved.
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