Semiconductor optical amplifier used as regenerator for degraded differential phase-shift keying signals  

作　　者：席丽霞 李建平 杜树成 徐霞 张晓光 

机构地区：[1]Key Laboratory of Information Photonics and Optical Communications,Ministry of Education,Beijing University of Posts and Telecommunications [2]College of Nucleus Science and Technology,Beijing Normal University

出　　处：《Chinese Physics B》2011年第2期311-315,共5页中国物理B（英文版）

基　　金：supported by the Scientific Fund for Chinese Universities (Grant No. BUPT 2009RC0413);the National "863" High Technology Projects (Grant No. 2009AA01Z224)

摘　　要：Phase and amplitude regeneration are necessary for degraded differential phase-shift keying communication sys- tems. This paper proposes a regenerator based on semiconductor optical amplifier for differential phase-shift keying signals. The key regeneration mechanism is theoretically analysed. The effectiveness of semiconductor optical amplifier based regenerator is demonstrated by comparing the bit error rate and eye diagrams before and after regeneration for 40-Cbit/s differential phase-shift keying 1080-km transmission systems. The results show that regeneration effects are very well. Bit error rate is tess than 10-12 with the regenerator.Phase and amplitude regeneration are necessary for degraded differential phase-shift keying communication sys- tems. This paper proposes a regenerator based on semiconductor optical amplifier for differential phase-shift keying signals. The key regeneration mechanism is theoretically analysed. The effectiveness of semiconductor optical amplifier based regenerator is demonstrated by comparing the bit error rate and eye diagrams before and after regeneration for 40-Cbit/s differential phase-shift keying 1080-km transmission systems. The results show that regeneration effects are very well. Bit error rate is tess than 10-12 with the regenerator.

关 键 词：differential phase-shift keying REGENERATION semiconductor optical amplifier phase noise 

分 类 号：TN722[电子电信—电路与系统] TN915.05