80-GB all-optical serial-to-parallel convertor for QPSK signal based on cascaded phase modulators and optical filters  

作　　者：孔德明 李岩 王慧 伍剑 林金桐 

机构地区：[1]State Key Laboratory of Information Photonics and Optical Communications,Beijing University of Posts and Telecommunications

出　　处：《Chinese Optics Letters》2012年第11期80-82,共3页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.61001121,60932004,and61006041);the National"973"Program of China(No.2011CB301702);the National"863"Program of China(No.2012AA011303);the Fundamental Research Funds for Central Universities

摘　　要：An all-optical serial-to-parallel converter （SPC） utilizing two cascaded phase modulators and optical bandpass filters （OBPFs） is experimentally investigated and applied to demultiplex an 80-GBd optical timedivision multiplexing （OTDM） return-to-zero （RZ） differential quadrature phase-shift keying （QPSK） signal. Two 40-GBd OTDM tributaries are error-free demultiplexed with a power penalty of approximately 4 dB in the worst case. With its advantages of compact structure, high speed, low power penalty, simultaneous two-tributary operation, and no assistance from a light source, the SPC has potential for use in future OTDM networks. However, the performance of the SPC still needs imDrovement.An all-optical serial-to-parallel converter （SPC） utilizing two cascaded phase modulators and optical bandpass filters （OBPFs） is experimentally investigated and applied to demultiplex an 80-GBd optical timedivision multiplexing （OTDM） return-to-zero （RZ） differential quadrature phase-shift keying （QPSK） signal. Two 40-GBd OTDM tributaries are error-free demultiplexed with a power penalty of approximately 4 dB in the worst case. With its advantages of compact structure, high speed, low power penalty, simultaneous two-tributary operation, and no assistance from a light source, the SPC has potential for use in future OTDM networks. However, the performance of the SPC still needs imDrovement.

关 键 词：Bandpass filters Light sources Low power electronics Optical filters Quadrature phase shift keying Time division multiplexing 

分 类 号：TN713[电子电信—电路与系统] TN761