偏振稳定器的理论分析与实验研究

Theoretical and Experimental Research on Polarizing Stabilizer

对于高速率(40Gb/s以上)的光纤通信系统,其偏振相关特性显得尤为重要。推导并验证了偏振控制器的琼斯矩阵及穆勒矩阵,对于任意输入光偏振态,实验得到了任意希望输出的偏振态。分析并设计了以偏振控制器为核心器件的偏振稳定器,通过实时地控制偏振控制器,使稳定器输出端的偏振态不随输入端偏振态的扰动而改变,并且不受环境因素的干扰。

Polarizing dependent characteristics of the fiber-optic transmission system becomes especially important when the bit rate increase to 40 Gb/s or above. The Jones matrix and muller Matrix,the principles behind the polarizing characteristics,are also derived from the author's calculation and are testified in the experiment,which shows any expected output of polarizing-state can be produced with whatever input of polarizing-state at the operator's discretion. Base on the analysis and with the polarizing controller as the key component,a design is worked out for a polarizing stabilizer. As such,only by controlling the polarizing controller will never the output of the stabilizer be changed,no matter how vibrate it has been at the input end and what changes have taken place in the environment.