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Proceedings Paper

Theoretical investigation of DOP as feedback control signals for PMD compensation
Author(s): Jian Wang; Jinlong Yu; Yanan Li; Hao Hu
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Paper Abstract

Based on the assumption of a quasi-monochromatic wave for light in fibres and 2□2 coherency matrix, a relationship of DO P with several parameters as well as DGD is derived from the common definition of DOP. A normalized coherent coefficient, showing the degree of correlation of optical signals in both principal states of polarization (PSPs), is derived theoretically. The value of this parameter indicates directly the degree of polarization of optical signals within the communications fibers. The correlation is also the straightforward express of differential group delay between two PSPs. With a pulse shape of Gaussian, we give a useful expression of DOP with power splitting ratio and differential group delay. Two curves of calculations are also given. When DGD becomes bigger, the coherent coefficient is smaller, meaning that the DOP is lower. DOP is one of feedback control signals for dynamic PMD compensation.

Paper Details

Date Published: 11 February 2005
PDF: 6 pages
Proc. SPIE 5625, Optical Transmission, Switching, and Subsystems II, (11 February 2005); doi: 10.1117/12.572579
Show Author Affiliations
Jian Wang, Tianjin Univ. (China)
Civil Aviation Univ. of China (China)
Jinlong Yu, Tianjin Univ. (China)
Yanan Li, Tianjin Univ. (China)
Hao Hu, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 5625:
Optical Transmission, Switching, and Subsystems II
Cedric F. Lam; Wanyi Gu; Norbert Hanik; Kimio Oguchi, Editor(s)

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