In this paper we study the structure of panda fibers how to effect the birefringence (beat length) by an infinitesimal element method.
2
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。
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.
3
高双折射光纤的一个重要参数是拍长,由于拍长很短和周期性变化,如何实现准确测量是十分困难的。
One of the most important parameters about high birefringence fibers is the beat length. Because of its shortness and periodicity, measuring beat length is a critical one.