Self-polarization emission based on coherent combination of intracavity eigenmodes in Nd:YAG/Cr^(4+):YAG lasers  

作　　者：Kaifei Tang Wenbin Liao Da Lin Bingxuan Li Weidong Chen Ge Zhang 汤凯飞;廖文斌;林达;李丙轩;陈玮冬;张戈(College of Chemistry,Fuzhou University,Fuzhou 350108,China;Key Laboratory of Optoelectronic Materials Chemistry and Physics,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China;Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China,Fuzhou 350108,China;University of Chinese Academy of Sciences,Beijing 100049,China;Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices,Fuzhou 350108,China)

机构地区：[1]College of Chemistry,Fuzhou University,Fuzhou 350108,China [2]Key Laboratory of Optoelectronic Materials Chemistry and Physics,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China [3]Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China,Fuzhou 350108,China [4]University of Chinese Academy of Sciences,Beijing 100049,China [5]Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices,Fuzhou 350108,China

出　　处：《Chinese Optics Letters》2021年第2期30-34,共5页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.61575199,61875199,61975208;51761135115);Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB20000000);Science Foundation of Fujian Province(No.2019J02015)。

摘　　要：The behavior of self-polarization emission in Nd∶Y_(3)Al_(5)O_(12)(YAG)=Cr^(4+)∶YAG lasers has been proved in some cases.However,the degree and direction of polarization were often sensitive and unstable.We experimentally observed different beam profiles versus the angle of the polarizer relative to the polarization direction of the laser.In order to explore the polarization mechanism,the dynamics of intracavity polarized eigenmodes was analyzed theoretically.Simulative results were well consistent with our experimental observations.It indicated that the linear self-polarization emission was a composite state rather than an intrinsic state.This study contributed to the improvement of the polarization stability in Nd∶YAG=Cr^(4+)∶YAG passively Q-switched lasers.

关 键 词：self-polarization emission polarized eigenmodes coherent combination 

分 类 号：TN248[电子电信—物理电子学]