氦氖激光器的横模选择实验  

Experiment of Transverse Mode Selection in He-Ne Laser

作　　者：谭中奇[1] 吴素勇[1] 于旭东[1] 肖光宗[1] 

机构地区：[1]国防科学技术大学,湖南长沙410073

出　　处：《大学物理实验》2016年第6期15-17,共3页Physical Experiment of College

基　　金：国防科学技术大学光电科学与工程学院教育教学改革研究课题(2015XY05)

摘　　要：衍射作为激光器腔内损耗的重要来源,是决定激光器模式的重要因素。本文以氦氖激光器为例,针对其模式选择实验内容,搭建起全外腔氦氖激光器实验系统,进行了横模观察和选择实验,并结合衍射场理论和模式竞争等相关概念对实验结果进行了分析和讨论。相关问题的研讨对于学员理解和掌握有关激光横模相关概念和选模基本理论具有一定参考价值。As an important source of the laser＇ s cavity loss, the diffraction is an important factor to determine the laser mode.Using Helium-Neon gas laser as an example, an experimental system of external cavity He-Ne laser is established to carry on the observing and selection study of laser’ s transverse mode, and the results are analyzed and discussed based on the diffraction field theory and the mode of competition concepts.The study of related issues has a certain reference value for students to understand and master the relevant concepts of laser transverse mode and the basic theory of selecting mode.

关 键 词：衍射 氦氖激光器 选模 增益管 

分 类 号：TN248[电子电信—物理电子学]