Huang Zejia, Wu Chongqing, Wang Zhi, Wang Jian, Liu Lanlan
Opt Express. 2018 Feb 19;26(4):4798-4806. doi: 10.1364/OE.26.004798.
Using a quaternion method, the polarization mode-coupling coefficient can be derived from three components of the Stokes vectors at three adjacent points along a fiber. A complete polarization optical time-domain reflectometry scheme for polarization mode coupling distributed measurement in polarization-maintaining fiber ring is proposed based on the above theoretical derivations. By comparing the measurement results of two opposite incident directions and two orthogonal polarization axes of polarization-maintaining fiber rings with different lengths, the feasibility and repeatability of the measurement scheme are verified experimentally with a positioning spatial resolution of 1 meter.
采用四元数方法，可以从沿光纤三个相邻点处斯托克斯矢量的三个分量推导出偏振模耦合系数。基于上述理论推导，提出了一种用于保偏光纤环中偏振模耦合分布测量的完整偏振光时域反射测量方案。通过比较不同长度保偏光纤环两个相反入射方向和两个正交偏振轴的测量结果，以1米的定位空间分辨率对测量方案的可行性和可重复性进行了实验验证。
