Phase-locked all-optical differential polarization demodulation

doi:10.1088/1674-1056/23/6/064214

Abstract 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 3×3 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.

Keywords: optical communication systems demodulation polarization

Received: 29 September 2013
Revised: 12 November 2013
Accepted manuscript online:

PACS:	42.79.Sz	(Optical communication systems, multiplexers, and demultiplexers?)
	42.25.Ja	(Polarization)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11274037 and 61275075), the Program for New Century Excellent Talents in University, Ministry of Education of China (Grant No. NCET-12-0765), and the Foundation for the Author of National Excellent Doctoral Dissertation, China (Grant No. 201236).

Corresponding Authors: Li Zheng-Yong
E-mail: zhyli@bjtu.edu.cn

Cite this article:

Shi Ji (史骥), Li Zheng-Yong (李政勇), Zhang Ge (张革), Wang Hai-Yang (王海洋), Wang Yi-Xu (王一旭), Wu Chong-Qing (吴重庆) Phase-locked all-optical differential polarization demodulation 2014 Chin. Phys. B 23 064214

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Phase-locked all-optical differential polarization demodulation

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