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METHOD AND DEVICE FOR MEASURING POLARISATION STATE AND POLARISATION MODE DISPERSION IN PHOTONIC TRANSMISSION SYSTEMS

机译:光子传输系统中偏振态和偏振模色散的测量方法及装置

摘要

The invention relates to a method and device for the evaluation of the specific values of the polarisation state of a signal transmitted within a photonic transmission system for a number of frequencies of one or more pulses extracted from the optical signal with the translation of the frequency components of the polarisation state of one or more pulses to the time domain through the use of an optical Fourier transformer, as well as for sampling, quantification and subsequent analysis. The aforementioned analysis is used to calculate the variation in the polarisation state in relation to frequency, the associated PMD vector and the DGD present in the transmitted signal. Said information can be used as a control signal for a PMD compensating device in order to improve the communication quality in the system.
机译:本发明涉及一种方法和装置,用于评估从光信号中提取的一个或多个脉冲的多个频率的光子传输系统内传输的信号的偏振态的特定值,以及频率分量的平移通过使用光学傅立叶变换器,以及用于采样,量化和后续分析,将一个或多个脉冲的偏振态转换到时域。上述分析用于计算极化状态相对于频率,相关的PMD矢量和发射信号中存在的DGD的变化。所述信息可以用作用于PMD补偿设备的控制信号,以便改善系统中的通信质量。

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