In this paper, we describe the basic principle of polarization maintaining optical fiber and the method to measure the beat length of PM optical fiber.
本文叙述了保偏光纤能够保证传输光波偏振特性的基本原理，介绍了测量保偏光纤拍长的基本方法。
The invention also relates to the adopted device, can more quickly search polarization maintaining optical fiber azimuth to increase axle fixing speed and precision.
本发明还涉及所述方法所采用的装置，可以更加快速的搜索到保偏光纤的所在方位角，从而提高定轴速度和定轴精度。
Comparing single mode optical fiber with panda polarization maintaining optical fiber, this paper introduces the differences between the performance and manufacture technology of the optical fibers.
通过对普通单模光纤和熊猫型保偏光纤的比较，介绍了两种光纤的性能差别和制作工艺的差别。
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