Theoretical investigation of DOP as feedback control signals for PMD compensation

Jian Wang; Jinlong Yu; Yanan Li; Hao Hu

doi:10.1117/12.572579

11 February 2005 Theoretical investigation of DOP as feedback control signals for PMD compensation

Jian Wang, Jinlong Yu, Yanan Li, Hao Hu

Proceedings Volume 5625, Optical Transmission, Switching, and Subsystems II; (2005) https://doi.org/10.1117/12.572579
Event: Asia-Pacific Optical Communications, 2004, Beijing, China

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.

Citation Download Citation

Jian Wang, Jinlong Yu, Yanan Li, and Hao Hu "Theoretical investigation of DOP as feedback control signals for PMD compensation", Proc. SPIE 5625, Optical Transmission, Switching, and Subsystems II, (11 February 2005); https://doi.org/10.1117/12.572579

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