Chinese Optics Letters, 2012, 10 (s1): S10603, Published Online: May. 18, 2012
System performance influenced by channel plan for coherent PDM-QPSK/OOK hybrid transmission systems 
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060.1660 Coherent communications 060.2330 Fiber optics communications 060.4510 Optical communications
Abstract
The impact of channel occupancies on polarization division multiplexed quadrature phase-shift keying (PDM-QPSK)/on-off keying (OOK) hybrid systems is investigated numerically over a dispersion-managed transmission link. In addition to keep large residual dispersion per span, we find that suitable channel occupancy also help to improve the nonlinear tolerance of such hybrid systems significantly. About 2.4-dBm more nonlinear threshold (NLT) and 75% increase of transmission reach can be obtained under suitable channel plan for 112-Gb/s PDM-QPSK/OOK hybrid systems.
Xiaogang Yi, Yan Li, Jian Wu, Kun Xu, Xiaobin Hong, Hongxiang Guo), Jintong Lin. System performance influenced by channel plan for coherent PDM-QPSK/OOK hybrid transmission systems[J]. Chinese Optics Letters, 2012, 10(s1): S10603.
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