光纤耦合中的偏振匹配优化

量子电子学报

光纤耦合中的偏振匹配优化

宋红芳1,2,3，曾孟彦1,2,3，黄垚1,2，管桦1,2,高克林1,2?

1 中国科学院武汉物理与数学研究所波谱与原子分子物理国家重点实验室，湖北武汉 430071； 2 中国科学院武汉物理与数学研究所, 中国科学院原子频标重点实验室，湖北武汉 430071； 3 中国科学院大学，北京 100049

发布日期:2019-06-11
通讯作者: 高克林（1958-），湖北人，研究员，主要从事囚禁离子光频标与精密谱测量方面的研究。 E-mail:klgao@wipm.ac.cn
作者简介:宋红芳（1988-），女，安徽人，博士生，主要从事囚禁离子与精密谱测量方面的研究。E-mail: songhf@wipm.ac.cn
基金资助:
Supported by National Natural Science Foundation of China (国家自然科学基金, 11474318, 11622434, 91336211, 11634013)

Optimization of polarization matching in fiber coupling

SONG Hongfang1,2,3, ZENG Mengyan1,2,3, HUANG Yao1,2, GUAN Hua1,2, GAO Kelin1,2

1 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China; 2 Key Laboratory of Atomic Frequency Standards, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China; 3 University of Chinese Academy of Sciences, Beijing 100049, China

Online:2019-06-11

摘要/Abstract

摘要： 单模保偏光纤因其优良的保偏特性而被广泛应用。在冷原子精密测量领域，光路搭建过程中用光纤引导激光到不同的实验平台以实现激光功率的合理分配，光纤入射端光偏振匹配不好会导致输出光功率发生严重抖动。以397 nm激光为例介绍了如何使空间传输的线偏振激光的偏振方向与保偏光纤的双折射轴匹配。在光纤输出端放置一个偏振器，通过旋转偏振器可将光纤输出光的功率抖动控制在5%左右。

关键词: 单模保偏光纤, 偏振匹配, 功率稳定, 偏振器

Abstract: Single mode polarization-maintaining fibers are widely used for its excellent polarization-maintaining property. In the field of precision measurement of cold atoms, in order to realize the reasonable distribution of laser power, lasers are guided with fibers into different experiment platforms in the process of optical path building. Poor laser polarization matching at the fiber incident end can cause severe jitter of output laser power. Taking the 397 nm laser as an example, it’s introduced how to match the polarization direction of linearly polarized laser in space with the birefringence axis of polarization-maintaining fiber. A polarizer is placed at the fiber output end, and laser power jitter out of the fiber can be controlled at about 5% by rotating the polarizer.

Key words: single-mode polarization-maintaining fiber, polarization matching, power stabilization, polarizer

宋红芳1,2,3，曾孟彦1,2,3，黄垚1,2，管桦1,2,高克林1,2?. 光纤耦合中的偏振匹配优化[J]. 量子电子学报.

SONG Hongfang1,2,3, ZENG Mengyan1,2,3, HUANG Yao1,2, GUAN Hua1,2, GAO Kelin1,2. Optimization of polarization matching in fiber coupling[J]. Chinese Journal of Quantum Electronics.

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