Experimental demonstration of multigranularity switching between optical DFT-spread-OFDM and Nyquist superchannel  

作　　者：丁瑞 张婷婷 张帆 

机构地区：[1]State Key Laboratory of Advanced Optical Communication Systems & Networks,Peking University

出　　处：《Chinese Optics Letters》2014年第11期21-25,共5页中国光学快报（英文版）

基　　金：supported by the National 973 Program of China(No.2010CB328201);the National 863 Program of China(No.2012AA011302);the National Natural Science Foundation of China(No.61077053)

摘　　要：We experimentally investigate multigranularity optical subband switching functionality between two superchannels with slight error vector magnitude penalty. One is 4×39 Gb/s polarization-division-multiplexed（PDM） quadrature phase shift keying discrete Fourier transform spread orthogonal frequency division multiplexing（DFT-spread-OFDM） superchannel with 12.5 GHz band spacing. The other is 8×29 Gb/s PDM-16-quadrature amplitude modulation Nyquist pulse shaping superchannel with 6.25 GHz band spacing. To the best of our knowledge, this is the first time that optical switching functionality for individual band between different superchannels with multigranularity is realized.We experimentally investigate multigranularity optical subband switching functionality between two superchannels with slight error vector magnitude penalty. One is 4×39 Gb/s polarization-division-multiplexed（PDM） quadrature phase shift keying discrete Fourier transform spread orthogonal frequency division multiplexing（DFT-spread-OFDM） superchannel with 12.5 GHz band spacing. The other is 8×29 Gb/s PDM-16-quadrature amplitude modulation Nyquist pulse shaping superchannel with 6.25 GHz band spacing. To the best of our knowledge, this is the first time that optical switching functionality for individual band between different superchannels with multigranularity is realized.

关 键 词：Amplitude modulation Discrete Fourier transforms Local area networks Phase shift Phase shifters Pulse shaping Quadrature amplitude modulation Quadrature phase shift keying 

分 类 号：TN929.1[电子电信—通信与信息系统]