布拉格衍射下半导体激光光强分布实验探讨  

Experimental Study on Intensity Distribution of Semiconductor Laser Based on Bragg Diffraction

作　　者：方明月 黎俊 李舒颖 赵佳佳 曾育锋[1,3] FANG Mingyue;LI Jun;LI Shuying;ZHAO Jiajia;ZENG Yufeng(College of Physics and Telecommunications Engineering,South China Normal University,Guangzhou 510006,China;School of Information and Optoelectronic Science and Engineering,South China Normal University,Guangzhou 510006,China;National Demonstration Center for Experimental Physics Education,South China Normal University,Guangzhou 510006,China)

机构地区：[1]华南师范大学物理与电信工程学院,广东广州510006 [2]华南师范大学信息光电子科技学院,广东广州510006 [3]华南师范大学物理国家级实验教学示范中心,广东广州510006

出　　处：《大学物理实验》2021年第1期23-26,共4页Physical Experiment of College

摘　　要：通过控制变量法,探究了声光效应中布拉格衍射下不同超声波频率、功率以及是否载入调制信息下衍射光斑的光强横向分布。并用MATLAB软件拟合了0级和-1级衍射光的光强分布图,将实验结果与理论解释进行对比分析。Through the control variable method,the lateral distribution of the intensity of the diffracted spot under different diffraction frequencies and powers under Bragg diffraction in the acousto-optic effect is investigated.The light intensity distribution maps of the 0th and-1st order diffracted lights were fitted with MATLAB software,and the experimental results were compared with the theoretical explanations.

关 键 词：声光效应 布拉格衍射 光强分布 

分 类 号：O4-34[理学—物理]