Flexible multidimensional modulation formats based on PM-QPSK constellations for elastic optical networks  

作　　者：何子龙 刘文涛 沈百林 陈雪 高夕晴 施社平 张琦 尚冬冬 吉勇宁 刘英峰 

机构地区：[1]State Key Lab of Information Photonics and Optical Communications,Beijing University of Posts and Telecommunications, Beijing 100876, China [2]ZTE Corporation, Beijing 100191, China

出　　处：《Chinese Optics Letters》2016年第4期20-23,共4页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.61571061);the Fund of State Key Laboratory of Information Photonics and Optical Communications(Beijing University of Posts and Telecommunications),China

摘　　要：We demonstrate flexible multidimensional modulation formats, polarization multiplexed k-symbol check quad- rature phase shift keying （PM-kSC-QPSK）, based on PM-QPSK constellations for elastic optical networks. The experimental results show a significant optical signal noise ratio （OSNR） tolerance improvement for PM-2SC- QPSK and PM-4SC-QPSK over PM-QPSK in both back-to-back and 500 km transmission scenarios at the expense of spectral efficiency reduction. This flexible modulation method can be used ＇in elastic optical networks to provide a trade-off between the spectral efficiency and OSNR tolerance.We demonstrate flexible multidimensional modulation formats, polarization multiplexed k-symbol check quad- rature phase shift keying （PM-kSC-QPSK）, based on PM-QPSK constellations for elastic optical networks. The experimental results show a significant optical signal noise ratio （OSNR） tolerance improvement for PM-2SC- QPSK and PM-4SC-QPSK over PM-QPSK in both back-to-back and 500 km transmission scenarios at the expense of spectral efficiency reduction. This flexible modulation method can be used ＇in elastic optical networks to provide a trade-off between the spectral efficiency and OSNR tolerance.

关 键 词：Economic and social effects Efficiency Fiber optic networks MODULATION Optical signal processing Phase shift Phase shift keying Phase shifters 

分 类 号：TN929.1[电子电信—通信与信息系统]