Performance of optical DPSK and DQPSK in 40G bit/s transmission systems

Jie Gao; Jianmin Cui; Lihui Feng; Fang Cui; Yunan Sun

doi:10.1117/12.757474

4 January 2008 Performance of optical DPSK and DQPSK in 40G bit/s transmission systems

Jie Gao, Jianmin Cui, Lihui Feng, Fang Cui, Yunan Sun

Proceedings Volume 6837, Information Optics and Photonics Technologies II; 68371C (2008) https://doi.org/10.1117/12.757474
Event: Photonics Asia 2007, 2007, Beijing, China

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.

Citation Download Citation

Jie Gao, Jianmin Cui, Lihui Feng, Fang Cui, and Yunan Sun "Performance of optical DPSK and DQPSK in 40G bit/s transmission systems", Proc. SPIE 6837, Information Optics and Photonics Technologies II, 68371C (4 January 2008); https://doi.org/10.1117/12.757474

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