Effect of laser frequency offset on optical minimum-shift keying transmission system

Han Chen; Yi Dong; Hao He; Weisheng Hu; Lemin Li

doi:10.1117/12.802866

11 November 2008 Effect of laser frequency offset on optical minimum-shift keying transmission system

Han Chen, Yi Dong, Hao He, Weisheng Hu, Lemin Li

Proceedings Volume 7136, Optical Transmission, Switching, and Subsystems VI; 713618 (2008) https://doi.org/10.1117/12.802866
Event: Asia-Pacific Optical Communications, 2008, Hangzhou, China

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.

Citation Download Citation

Han Chen, Yi Dong, Hao He, Weisheng Hu, and Lemin Li "Effect of laser frequency offset on optical minimum-shift keying transmission system", Proc. SPIE 7136, Optical Transmission, Switching, and Subsystems VI, 713618 (11 November 2008); https://doi.org/10.1117/12.802866

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