All-optical regeneration of DQPSK/QPSK signals based on phase-sensitive amplification

被引：30
|
作者：
Zheng, Zheng [1 ]
An, Lin [1 ]
Li, Zheng [1 ]
Zhao, Xin [1 ]
Liu, Xiang [2 ]
机构：
[1] Beihang Univ, Sch Elect & Informat Engn, Beijing 100083, Peoples R China
[2] Alcatel Lucent, Bell Labs, Holmdel, NJ 07733 USA
来源：
OPTICS COMMUNICATIONS | 2008年 / 281卷 / 10期
关键词：
all-optical regeneration; quadrature phase-shift keying (QPSK); phase-sensitive amplifier (PSA); Mach-Zehnder interferometer (MZI); nonlinear optical fiber;
D O I：
10.1016/j.optcom.2008.01.046
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An all-optical regeneration scheme for DQPSK and QPSK signals using phase-sensitive amplifiers (PSAs) is studied and its effectiveness is investigated through numerical simulations. By leveraging the ability of PSAs to provide phase and amplitude regenerative amplification, we show significant simultaneous suppression of both phase and amplitude noises of (D)QPSK signals under optimized conditions. The reduction in the phase noise variance of a noise-corrupted DQPSK signal obtained by one such regenerative amplification can be as large as similar to 5.5 folds, showing its good potential for distributed optical regeneration of (D)QPSK signals. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：2755 / 2759
页数：5
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