光纤传输系统偏振模色散对输出信号偏振度的影响

周赢武; 郭凌伟; 黄锐; 瞿荣辉; 方祖捷

中国激光, 2004, 31 (10): 1231, 网络出版: 2006-06-12

光纤传输系统偏振模色散对输出信号偏振度的影响

Effects of Degree of Polarization of the Output Pulse on Polarization Mode Dispersion in Optical Fiber Transmission Systems

论文大纲

周赢武 ^1,2郭凌伟 ¹黄锐 ¹瞿荣辉 ¹方祖捷 ¹

作者单位

¹ 中国科学院上海光学精密机械研究所, 上海 201800

² 福州大学电子系,福建福州 350002

光通信偏振模色散偏振度 Jones矩阵 optical communication polarization mode dispersion degree of polarization Jones matrix

摘要

光纤通信系统的偏振模色散(PMD)是限制系统传输容量和距离的关键因素。系统输出信号的偏振度(DOP)反映了系统的偏振模色散。利用光纤通信系统的Jones矩阵模型,在理论上得到了系统的输出光脉冲Stokes矢量的表达式。在此基础上分析和计算了系统的输出脉冲的偏振度特性。结果表明,系统的输出信号的偏振度随入射脉冲偏振态的变化而变化,当入射脉冲偏振态与系统的主偏振态一致时,系统的输出信号的偏振度达到极大;同时,随着系统的偏振模色散幅度的增大而变小。系统的输出信号的偏振度还随着信号原始啁啾系数绝对值的增大而减小,但与啁啾系数的符号无关。

Abstract

The polarization mode dispersion (PMD) of the optical fiber transmission system has been the main factor to limit the transmission capacity and distance of the system. The degree of polarization (DOP) of optical signals is related to the PMD of the system. The expression of the output pulse Stokes vector is derived based on Jones matrix model proposed by A. Orlandini. The basic properties of degree of polarization of optical pulse have been investigated. It is shown that the degree of polarization of optical signals changes with polarization state of the input, and reaches its maximum at the position of the principal state of polarization; it decreases with the increase of the PMD magnitude; And it decreases also with the increase of absolute value of the initial pulse chirp coefficient, but has no relation with the sign of chirping coefficient.

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周赢武, 郭凌伟, 黄锐, 瞿荣辉, 方祖捷. 光纤传输系统偏振模色散对输出信号偏振度的影响[J]. 中国激光, 2004, 31(10): 1231. 周赢武, 郭凌伟, 黄锐, 瞿荣辉, 方祖捷. Effects of Degree of Polarization of the Output Pulse on Polarization Mode Dispersion in Optical Fiber Transmission Systems[J]. Chinese Journal of Lasers, 2004, 31(10): 1231.

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