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使用空间光调制器产生高阶厄米高斯光束

Generation of High-Order Hermite-Gaussian Beams Using a Spatial Light Modulator

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摘要

提出通过单个空间光调制器制备厄米高斯(HG)光束的方法,理论上分析了输入光束空间横向分布与模式转换效率的关系,实验上采用最佳的椭圆形光斑入射,获得了高质量的HG6,0、HG8,0、HG10,0模光场,纯度分别为96.2%,94.9%,93.4%,并且HG10,0模的转换效率达到了14.45%,输出功率为217 mW,其转换效率较传统的基模高斯光束入射时提高了5.6倍。此高质量及高效的高阶厄米高斯光束制备方法,有望应用于高阶空间压缩态光场制备和空间小位移精密测量等方面。

Abstract

Herein, the generation of Hermite-Gaussian beams using a spatial light modulator was experimentally investigated and the relation between mode conversion efficiency and transverse distribution of the input beam was theoretically analyzed. High-quality Hermit-Gaussian beams with HG6,0, HG8,0, and HG10,0 modes, whose purity was 96.2%, 94.9%, and 93.4%, respectively, were experimentally generated using the optimum input beam with an elliptical transverse distribution. Moreover, the 217-mW HG10,0 mode was obtained and the mode conversion efficiency reached 14.45%, which is 5.6 times higher than that of the traditional input beam with fundamental Gaussian mode. The generation method of Hermite-Gaussian beam with high quality and efficiency has promising application potentials in the precision measurement of small displacement and preparation of a high-order spatial squeezed light field.

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中图分类号:O436

DOI:10.3788/CJL202047.0905004

所属栏目:光束传输与控制

基金项目:国家自然科学基金、国家重点研发计划、山西省高等学校创新人才支持计划和山西省1331工程资助课题;

收稿日期:2020-05-21

修改稿日期:2020-06-28

网络出版日期:2020-09-01

作者单位    点击查看

刘奎:山西大学光电研究所量子光学与光量子器件国家重点实验室极端光学协同创新中心, 山西 太原 030006
李治:山西大学光电研究所量子光学与光量子器件国家重点实验室极端光学协同创新中心, 山西 太原 030006
郭辉:山西大学光电研究所量子光学与光量子器件国家重点实验室极端光学协同创新中心, 山西 太原 030006
郜江瑞:山西大学光电研究所量子光学与光量子器件国家重点实验室极端光学协同创新中心, 山西 太原 030006

联系人作者:刘奎(liukui@sxu.edu.cn)

备注:国家自然科学基金、国家重点研发计划、山西省高等学校创新人才支持计划和山西省1331工程资助课题;

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引用该论文

Liu Kui,Li Zhi,Guo Hui,Gao Jiangrui. Generation of High-Order Hermite-Gaussian Beams Using a Spatial Light Modulator[J]. Chinese Journal of Lasers, 2020, 47(9): 0905004

刘奎,李治,郭辉,郜江瑞. 使用空间光调制器产生高阶厄米高斯光束[J]. 中国激光, 2020, 47(9): 0905004

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