Phase-locked all-optical differential polarization demodulation

被引：2
|
作者：
Shi Ji [1 ]
Li Zheng-Yong [1 ]
Zhang Ge [1 ]
Wang Hai-Yang [1 ]
Wang Yi-Xu [1 ]
Wu Chong-Qing [1 ]
机构：
[1] Beijing Jiaotong Univ, Minist Educ, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China
来源：
CHINESE PHYSICS B | 2014年 / 23卷 / 06期
基金：
中国国家自然科学基金;
关键词：
optical communication systems; demodulation; polarization; QUANTUM KEY DISTRIBUTION; MODULATION; SCHEME;
D O I：
10.1088/1674-1056/23/6/064214
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A novel scheme of differential polarization demodulation is presented and demonstrated based on a polarized asymmetrical Mach-Zehnder interferometer configuration with polarization control. To enhance the stability of the demodulator, a phase-lock device is designed, and it is composed of a symmetric 3 x 3 coupler and a feedback circuit. For further establishing a differential polarization-shift keying (DPolSK) transmission system, we successfully carry out the demodulation experiments on 10-Gb/s DPolSK optical signals for the first time. Due to the all-optical structure with phase-lock, our scheme is available to realize the DPolSK optical communication in practical optical fiber systems.
引用
收藏
页数：4
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