用于产生高阶模压缩光的空间光调制器的相位校正  

Correction the Phase of Spatial Light Modulator for Generation Higher-order Mode Squeezed Light

作　　者：马龙[1,2] 刘奎 郭辉[1,2] 孙恒信 郜江瑞 MA Long;LIU Kui;GUO Hui;SUN Heng-xin;GAO Jiang-rui(State Key of Laboratory of Quantum Optics and Quantum Optics Devices,Collaborative Innovation Center of Extreme Optics,Institute of Opto-Electronics,Shan.ri University,Taiyuan,Shanri 030006,China)

机构地区：[1]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,太原030006 [2]山西大学极端光学协同创新中心,太原030006

出　　处：《量子光学学报》2020年第3期264-270,共7页Journal of Quantum Optics

基　　金：国家重点研发计划(2016YFA0301404);国家自然科学基金(11604189,91536222);山西省“1331工程”重点学科建设计划经费。

摘　　要：本文介绍了一种通过控制入射与出射光场的偏振对空间光调制器相位调制特性进行测量的方法.实验上对日本滨松公司生产的X10468-03型液晶空间光调制器的相位调制特性进行了测量,全程只需两分钟即可完成.并对相位调制校正前后光束整形系统产生的拉盖尔高斯LG33模的强度分布进行对比,经相位调制校正后LG33模的纯度提高了15%.The higher-order mode is widely used in imaging,large capacity communication and quantum information protocol owing to their complex spatial structure,and the effective method to generate higher-order mode is based on the spatial light modulator.In this paper,we introduce a method to measure the phase modulation characteristics of spatial light modulator by controlling the polarization of incident and outgoing light fields.In the experiment,the phase modulation characteristics of spatial light modulator fabricated by HAMAMATSU was investigated,the whole process took only two minutes to complete.The intensity distribution of Laguerre-Gauss LG33 mode generated by beam shaping system before and after the phase modulation correction was compared,the purity of LG33 mode increased by 15%.This experiment laid the foundation of generation of higher-order mode quantum states with high purity,especially the higher-order mode squeezed state.

关 键 词：高阶模压缩光 空间光调制器 光束整形系统 拉盖尔高斯光束 

分 类 号：O431[机械工程—光学工程]