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Proceedings Paper

Research on PMD mitigation by using distributed fast polarization scrambling and FEC
Author(s): Dahai Han; Minliang Li; Lixia Xi
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Paper Abstract

Polarization mode dispersion (PMD) is one of the major obstacles in high-speed (above 100 Gbits rate) and long-haul optical communication system. In order to meet the requirements of high-sped optical communication quality, some PMD compensation and mitigation schemes had been developed. Forward error correction (FEC) is useful to increasing the system margin. The combination of distributed fast polarization scrambler (D-FPS) and FEC is an effective method to improving the optical system's PMD tolerance. The fundamental reason is that D-FPS can accelerate the redistribution of the link PMD to enable FEC to be more effective during the periods that would otherwise have PMD outages. Another advantage of this scheme is that it can mitigate the influence of PMD in multichannel system without feedback control and compensation based on each channel. The principle and performance of scrambling is introduced in this paper and the fundamental idea of improving PMD mitigation by using D-FPS combined with FEC is proposed. Some key factors such as scrambling speed and the number of scrambler which affecting the performance of this scheme are also introduced. Finally, proposing an assumption that the impact for system performance caused by the style of FPSs is distributed along the fiber link, and the mathematical estimation model is established. The combination of D-FPS and FEC would be a promising approach for performance improvement in ultra-high-speed optical communication system.

Paper Details

Date Published: 19 January 2011
PDF: 6 pages
Proc. SPIE 7986, Passive Components and Fiber-Based Devices VII, 798613 (19 January 2011); doi: 10.1117/12.888577
Show Author Affiliations
Dahai Han, Beijing Univ. of Posts and Telecommunications (China)
Minliang Li, Beijing Univ. of Posts and Telecommunications (China)
Lixia Xi, Beijing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 7986:
Passive Components and Fiber-Based Devices VII
Perry P. Shum, Editor(s)

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