激光高阶横模的相对相位判定与锁定  

Relative Phase Determination and Locking of High-order Transverse Mode of Laser

作　　者：马其旺 李治 孙恒信[1,2] 刘奎 郜江瑞[1,2] MA Qi-wang;LI Zhi;SUN Heng-xin;LIU Kui;GAOJiang-rui(State Key of Laboratory of Quantum Optics and Quantum Optics Devices,Collaborative Innovation Center of Extreme Optics,Institute of Opto-Electronics,Shanxi University,Taiyuan,Shanxi 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,山西太原030006 [2]山西大学,极端光学协同创新中心,山西太原030006

出　　处：《量子光学学报》2020年第1期77-87,共11页Journal of Quantum Optics

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

摘　　要：本文通过理论计算与数值模拟,提出了不同阶数的高阶模式间相对相位的判定与锁定方法。在像平面对两束光的干涉光斑进行空间取样,计算其干涉光强随相对相位的变化,并在此基础上提出了判定与锁定两束不同阶厄米高斯光束HGmn以及不同阶拉盖尔高斯光束LGpl相对位相的方案,并对厄米高斯光束相位判定与锁定进行了实验验证。In this paper, through theoretical calculation and numerical simulation, the method of determining and locking the relative phase between high-order modes with different orders is proposed. The interferometric spot in the image plane is spatially sampled and the interferometric intensity varied with the relative phase is calculated. A schemefor extracting and locking the relative phase of two different order Hermite-Gauss beams HGmn and different order Laguerre-Gauss beams LGmn is proposed. For HG modes, the experiment of extractingand locking the phase is demonstrated.

关 键 词：相位锁定 高阶横模 干涉仪 4F成像 

分 类 号：O431[机械工程—光学工程]