Phase-sensitive amplification in loop configuration for QPSK signal regeneration

被引：2
|
作者：
Inoue, K. [1 ]
Okazaki, S. [1 ]
机构：
[1] Osaka Univ, Suita, Osaka 5650871, Japan
来源：
OPTICS COMMUNICATIONS | 2013年 / 298卷
关键词：
Phase-sensitive amplifier; Signal regeneration; QPSK signal; ALL-OPTICAL REGENERATION; AMPLITUDE REGENERATION; DPSK SIGNALS;
D O I：
10.1016/j.optcom.2013.02.047
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, phase-sensitive amplification (PSA) in a loop configuration for phase regeneration of quadrature phase-shift keying (QPSK) signals is proposed. Unlike the conventional PSA schemes in which the signal output phase is locked to one of two values (e.g., 0 or pi), the proposed scheme outputs signal light with one of four phase values different by pi/2, owing to the loop configuration with two pump lights. All-optical QPSK signal regeneration can be achieved by using this PSA scheme. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：202 / 206
页数：5
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