熊猫型保偏光纤应力分布模拟放大实验研究

Study on the Experiment to Imitate and Enlarge the Distribution of Stress in Panda Birefringence Fiber

提出一种利用光弹性效应原理等效放大熊猫型保偏光纤应力分布的实验方法,用于观察、分析熊猫型保偏光纤受力情况,为理论研究保偏光纤应力分布提供了依据.利用光弹性全息照相技术中的二次曝光法记录下施加应力时模型的等和线;为了观察模型的等倾线,提出采用白光照明,以除去等差线对等倾线的影响.

This paper offered An experiment device that can imitate and enlarge the distribution of stress in panda birefringence fiber utilizing elastic-optic effect is offered. With this method, distribution of stress in panda birefringence fiber can be is observed and analyzed. In the experiment, the distribution of isometric stress in the model bearing external forces was hologram with twice-exposure method in elastic-optic experiment. For observing the coordinative inclination stress in the model, white-light source is suggested to use to illuminate the model which removed the affect of arithmetical thread.