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Proceedings Paper

Effect of laser frequency offset on optical minimum-shift keying transmission system
Author(s): Han Chen; Yi Dong; Hao He; Weisheng Hu; Lemin Li
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Paper Abstract

As a special case of continuous phase frequency-shift-keying (FSK), minimum-shift keying (MSK) exhibits some different properties compared with the traditional optical phase modulation formats, such as return-to-zero (RZ) differential-phase-shift-keying (DPSK) and differential-quadrature-phase-shift-keying (DQPSK). In this paper, we investigated the receiver performance degradation caused by laser frequency offset between laser frequency and delay interferometer (DI) phase, which is found to be the most critical impairment for the receiver performance in a practical optical phase modulated system. Results show that MSK system is about double times and six times more robust to frequency offsets than RZ-DPSK and RZ-DQPSK systems operating at the same 10Gb/s bit rate, respectively.

Paper Details

Date Published: 11 November 2008
PDF: 5 pages
Proc. SPIE 7136, Optical Transmission, Switching, and Subsystems VI, 713618 (11 November 2008); doi: 10.1117/12.802866
Show Author Affiliations
Han Chen, Shanghai Jiao Tong Univ. (China)
Yi Dong, Shanghai Jiao Tong Univ. (China)
Hao He, Shanghai Jiao Tong Univ. (China)
Weisheng Hu, Shanghai Jiao Tong Univ. (China)
Lemin Li, Univ. of Electronic Science and Technology of China (China)

Published in SPIE Proceedings Vol. 7136:
Optical Transmission, Switching, and Subsystems VI
Ken-ichi Kitayama; Pierpaolo C. Ghiggino; Kim Roberts; Yikai Su, Editor(s)

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