Polarization full feedback external cavity of open loop spectral beam combining based on multi-single emitters laser diode  

作　　者：胡满 张伟桥 曹澎 李彤彤 周旭彦 郑婉华 Man Hu;Weiqiao Zhang;Peng Cao;Tongtong Li;Xuyan Zhou;Wanhua Zheng(Laboratory of Solid-State Optoelectronics Information Technology,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;Weifang Academy of Advanced Opto-Electronic Circuits,Weifang 261071,China;State Key Laboratory on Integrated Optoelectronics,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;College of Future Technology,University of Chinese Academy of Sciences,Beijing 101408,China)

机构地区：[1]Laboratory of Solid-State Optoelectronics Information Technology,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China [2]Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China [3]Weifang Academy of Advanced Opto-Electronic Circuits,Weifang 261071,China [4]State Key Laboratory on Integrated Optoelectronics,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China [5]College of Future Technology,University of Chinese Academy of Sciences,Beijing 101408,China

出　　处：《Chinese Optics Letters》2024年第5期80-84,共5页中国光学快报（英文版）

基　　金：This work was supported by the Key Technology Research and Development Program of Shandong(Nos.2022CXGC020104 and 2023ZLYS03);the Key-Area Research and Development Program of Guangdong Province(No.2020B090922003).

摘　　要：In this paper,a spectral beam combining(SBC)structure of multi-single emitters laser diode based on a polarization full feedback(PFF)external cavity is proposed and demonstrated.The maximum combining efficiency is 75.6%,which leads to an output power of 38.48 W,a degree of polarization(DOP)of 99.42%,and electro-optical conversion efficiency of 35.63%under continuous wave operation at a current of 8 A.Compared to the conventional SBC,the output power,the combining efficiency,the electro-optical conversion efficiency,and the DOP of the PFF-SBC structure present improvements of 5.73 W,11.26 percentage points,5.3 percentage points,and 7.26 percentage points,respectively.The results show that this SBC method can achieve a high efficiency and linearly polarized laser output of SBC,thereby making the subsequent polarization beam-combining efficiency approach the limit.

关 键 词：diode laser spectral beam combining high efficiency degree of polarization external cavity feedback 

分 类 号：TN248[电子电信—物理电子学] TN31