激光技术, 2013, 37 (2): 235, 网络出版: 2013-03-27
基于强度传输矩阵的保偏光纤耦合器偏振研究
Polarization dependence of polarization-maintaining fiber couplers based on intensity transmission matrix
光学器件 保偏光纤耦合器 强度传输矩阵 偏振相关性 分光比 附加损耗 optical devices polarization-maintaining fiber coupler intensity transmission matrix polarization dependence beam splitting ratio extra loss
摘要
为了描述保偏光纤耦合器的分光比、附加损耗对输入光偏振态较为敏感的问题, 提出了强度传输矩阵的概念, 利用强度传输矩阵分析方法可以解释分光比和附加损耗随偏振态的变化规律。针对强度传输矩阵的概念, 进行了理论分析和实验验证, 搭建实验系统测量出耦合器的损耗、分光比以及偏振串音, 将测量数据代入到快慢轴的理论方程中进行计算可以得到耦合器的强度传输矩阵参量, 并且代入到圆偏振光注入情况下的方程中, 进行了相应的实验验证。结果表明, 强度传输矩阵参量对于描述保偏光纤耦合器的偏振特性具有重要的参考意义。
Abstract
In order to effectively describe the relationship between beam splitting ratio, extra loss of polarization-maintainning fiber and polarization state, a new concept of intensity transmission matrix was proposed. The new theory can refine the expression equation including intensity transmission matrix parameters, extra loss and beam splitting ratio with different polarization. The curves of extra loss, beam splitting ratio with 45°circularly polarized light and eight intensity transmission matrix parameters was included and the correctness of intensity transmission matrix was validated. The results show intensity transmission matrix has important influence for the description of polarization characteristics of polarization-maintaining fiber couplers.
徐宏杰, 张倩, 张硕. 基于强度传输矩阵的保偏光纤耦合器偏振研究[J]. 激光技术, 2013, 37(2): 235. XU Hong-jie, ZHANG Qian, ZHANG Shuo. Polarization dependence of polarization-maintaining fiber couplers based on intensity transmission matrix[J]. Laser Technology, 2013, 37(2): 235.
PDF全文
