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Proceedings Paper

Electronic dispersion compensation for high speed long haul transmission with DQPSK modulation
Author(s): Li Lu; Jianming Lei; Xuncheng Luo; Linlin Bing
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Paper Abstract

The applications of Electronic Dispersion Compensation (EDC) have recently attracted attention for high speed long haul transmission. Moreover, recent progress in signal formats has gained interest in recent years such as Differential Quadrature Phase Modulation (DQPSK). This format has higher spectral efficiency and reduced symbol rate compared to binary modulation compared to binary modulation formats. In this paper, we investigate the application of different EDC schemes with DQPSK format against chromatic dispersion (CD). The schemes are nonlinear feed-forward equalizer (FFE) and Decision-Feedback equalizer (DFE) and butterfly FFE-DFE. We demonstrate that butterfly structure can mitigates nonlinearity of cross-coupling because of processing two DPQSK tributaries independently. A 40 Gb/s simulated transmission system over 160km length is established. Simulation results show that butterfly FFE-DFE has better performance than separate FFE-DFE.

Paper Details

Date Published: 26 October 2009
PDF: 6 pages
Proc. SPIE 7516, Photonics and Optoelectronics Meetings (POEM) 2009: Optoelectronic Devices and Integration, 751604 (26 October 2009); doi: 10.1117/12.843355
Show Author Affiliations
Li Lu, Huazhong Univ. of Science and Technology (China)
Air Force Radar Academy (China)
Jianming Lei, Huazhong Univ. of Science and Technology (China)
Xuncheng Luo, Huazhong Univ. of Science and Technology (China)
Linlin Bing, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 7516:
Photonics and Optoelectronics Meetings (POEM) 2009: Optoelectronic Devices and Integration
Zishen Zhao; Ray T. Chen; Yong Chen; Jinzhong Yu; Junqiang Sun; Weiwei Dong, Editor(s)

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