SBS-enhanced FWM for polarization division multiplexed signals in coherent communication systems

被引：7
|
作者：
Huang, Chaoran [1 ]
Zhang, Ning [1 ]
Shu, Chester [1 ]
机构：
[1] Chinese Univ Hong Kong, Dept Elect Engn, Shatin, Hong Kong, Peoples R China
来源：
OPTICS LETTERS | 2017年 / 42卷 / 21期
关键词：
WAVELENGTH CONVERSION; GENERATION; FIBERS;
D O I：
10.1364/OL.42.004271
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Stimulated Brillouin scattering (SBS) is applied to improve the performance of polarization insensitive four-wave mixing (FWM) realized with two orthogonal pumps. By manipulating the phase matching condition with SBSinduced phase change, we achieve conversion efficiency improvement up to 6 dB with negligible polarization dependence. Our approach is implemented in a coherent communication system where polarization division multiplexing (PDM) quadrature phase shift keying (QPSK) signal is applied. The quality of the converted idler is evaluated in both back-to-back (BtB) and transmission systems. Our experimental results show that the converted signal enjoys an improved conversion efficiency with negligible polarization- induced distortion. The SBS-enhanced Q factor leads to an extension of the transmission distance by 240 km. The results indicate that SBS-enhanced FWM can accommodate the advanced modulation formats and multiplexing schemes in today's optical networks. (C) 2017 Optical Society of America
引用
收藏
页码：4271 / 4274
页数：4
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