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光栅反射镜作为激光器后腔镜输出径向偏振光

Generating Radially Polarized Laser Beam with Polarization-Selective Grating Mirror as Cavity Mirror

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摘要

利用光栅反射镜的偏振选择原理,设计并制备了35层镀膜、1000 nm周期、70 nm槽深的圆环型微结构光栅反射镜。使用该光栅反射镜作为激光二极管抽运的Nd∶YAG激光器的后腔镜,通过对激光谐振腔的优化,获得了功率为13.4 W的径向偏振激光。分析并设计偏振度的计算方法,测量得到径向偏振激光的偏振度可达97%。

Abstract

By utilizing the principle of polarization-selective grating mirrors, a 35-layer circular grating mirror, with 1000 nm period and 70 nm groove depth, has been designed and fabricated. The grating mirror is placed in a laser diode pumped Nd:YAG rod laser system as the cavity mirror. After optimizing the laser system, we get a radially polarized beam, of which the degree of radial polarization and the power are 97% and 13.4 W, respectively.

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中图分类号:O436

DOI:10.3788/cjl201643.0901008

所属栏目:激光物理

基金项目:国家自然科学基金(100976015)、国家973计划(2010CB922901)

收稿日期:2016-04-15

修改稿日期:2016-05-23

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作者单位    点击查看

戚若阳:清华大学物理系, 北京 100084
高健存:清华大学物理系, 北京 100084
方茗:清华大学物理系, 北京 100084
唐新春:清华大学物理系, 北京 100084
唐淳:中国工程物理研究院应用电子学研究所, 四川 绵阳 621900
裴正平:中国工程物理研究院应用电子学研究所, 四川 绵阳 621900
于益:中国工程物理研究院应用电子学研究所, 四川 绵阳 621900

联系人作者:高健存(gaojc@mail.tsinghua.edu.cn)

备注:戚若阳(1992—),男,博士研究生,主要从事激光及非线性光学方面的研究。

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引用该论文

Qi Ruoyang,Gao Jiancun,Fang Ming,Tang Xinchun,Tang Chun,Pei Zhengping Yu Yi. Generating Radially Polarized Laser Beam with Polarization-Selective Grating Mirror as Cavity Mirror[J]. Chinese Journal of Lasers, 2016, 43(9): 0901008

戚若阳,高健存,方茗,唐新春,唐淳,裴正平,于益. 光栅反射镜作为激光器后腔镜输出径向偏振光[J]. 中国激光, 2016, 43(9): 0901008

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