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Proceedings Paper

Performance of optical DPSK and DQPSK in 40G bit/s transmission systems
Author(s): Jie Gao; Jianmin Cui; Lihui Feng; Fang Cui; Yunan Sun
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Paper Abstract

We have simulated the OSNR sensitivity, filtering tolerance, chromatic dispersion tolerance, and nonlinear tolerance of optical DPSK and DQPSK formats with and without RZ carving in 40Gbit/s transmission systems. The results show that RZ-DPSK has the highest OSNR sensitivity, and is most robust against fiber nonlinearity in dispersion compensated systems with moderate channel spacing. The DQPSK systems have the highest filtering tolerance and dispersion tolerance, and is least affected by the reduction of the channel spacing. The simulations of long haul dispersion compensated systems show that RZ-DPSK has better performance in single channel system and WDM system with 100GHz channel spacing, while RZ-DQPSK has better performance in WDM system with 50GHz channel spacing.

Paper Details

Date Published: 4 January 2008
PDF: 8 pages
Proc. SPIE 6837, Information Optics and Photonics Technologies II, 68371C (4 January 2008); doi: 10.1117/12.757474
Show Author Affiliations
Jie Gao, Beijing Institute of Technology (China)
Jianmin Cui, Beijing Institute of Technology (China)
Lihui Feng, Beijing Institute of Technology (China)
Fang Cui, Beijing Institute of Technology (China)
Yunan Sun, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 6837:
Information Optics and Photonics Technologies II
Guoguang Mu; Feijun Song; Francis T. S. Yu; Suganda Jutamulia, Editor(s)

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