This system has high accuracy of measurement, high automatization and can be easy to be operated by measuring the mode field diameter of the PMF two principal axes.

• 并通过两种典型的保偏光纤两个主轴的模场直径的测量实验证明该测试系统具有测量精度高、自动化程度高和操作简单等特点，在保偏光纤对轴、熔接等领域有一定参考意义。