Effect of phase noise on optical minimum-shift keying transmission systems |
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| Authors: | Han Chen Yi Dong Hao He Weisheng Hu Lemin Li |
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| Institution: | aState Key Lab. of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, 800 DongChuan Rd., Shanghai 200240, China;bKey Lab. of Optical Fiber Transmission and Communication Networks, University of Electronic Science and Technology of China, No. 4, Section 2, North Jianshe Rd., Chengdu 610054, China |
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| Abstract: | Phase-modulated (PM) signals have recently been used in long-haul lightwave communication systems to reach record distances. Added directly to the signal phase, linear and nonlinear phase noise cause performance degradation in PM systems. Minimum-shift keying (MSK), as a special format of PM signals, presents some different features of phase noise tolerance. This paper investigates the effect of phase noise on the performance degradation in the 10 Gb/s optical MSK systems and analyzes the contribution of phase noise to the bit error rate (BER), compared with the conventional PM format, 50% duty cycle optical return-to-zero differential phase-shift keying (RZ-DPSK) signals, in several typical local fiber dispersion transmission systems. The effect of intensity noise on the performance degradation in the corresponding transmission systems is also investigated. |
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| Keywords: | Minimum-shift keying Return-to-zero differential phase-shift keying Differential phase Q-factor Phase-modulated |
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