Passively Q-switched Tm/Ho composite laser

作     者：Haizhou Huang Jinhui Li Jing Deng Yan Ge Huagang Liu Jianhong Huang Wen Weng Wenxiong Lin Haizhou Huang;Jinhui Li;Jing Deng;Yan Ge;Huagang Liu;Jianhong Huang;Wen Weng;Wenxiong Lin

作者机构：Key Laboratory of Optoelectronic Materials Chemistry and PhysicsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China University of Chinese Academy of SciencesBeijing 100049China Department of Electrical and Computer EngineeringNational University of Singapore4 Engineering Drive 3117576Singapore. 

出 版 物：《Opto-Electronic Advances》 (光电进展（英文）)

年 卷 期：2020年第3卷第4期

页      面：14-19页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：We are grateful for financial supports from National Key Research and Development Program of China(Grant No.2017YFB1104500) Natural National Science Foundation of China(NSFC)(Grant No.61875200) China Postdoctoral Science Foundation(Grant No.2018M642575)。 

主　　题：Ho laser Tm laser Tm/Ho composite passively Q-switched Cr:ZnSe 

摘      要：We explored Q-switching mechanism for the newly proposed Tm/Ho composite laser via developing a hybrid resonator for separating the intra-cavity Tm laser modulated by the saturable absorber(SA).With a Cr:ZnSe SA,successful passively Q-switching process with the maximum average output power of 474 mW and the shortest pulse width of 145 ns were obtained at the pulse repetition frequency of 7.14 kHz,where dual wavelength oscillation in both 2090 nm and 2097 nm was observed.This work provides an effective way for a direct laser diode(LD)pumped Q-switched Ho laser,which is compact and accessible.Furthermore,the current SA could be replaced by the 2D materials with broadband saturable absorption such as topological insulators or transition-metal dichalcogenides for seeking novel PQS lasers.