Stable ultraviolet ultrafast laser based on all-polarizationmaintaining fiber femtosecond laser  

作　　者：田昊 朱喆 林巍 李子豪 温俊鹏 修昊 范怡衡 韦池一 韦小明 杨中民 Hao Tian;Zhe Zhu;Wei Lin;Zihao Li;Junpeng Wen;Hao Xiu;Yiheng Fan;Chiyi Wei;Xiaoming Wei;Zhongmin Yang(School of Physics and Optoelectronics/State Key Laboratory of Luminescent Materials and Devices,Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices,Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques,South China University of Technology,Guangzhou 510640,China;Research Institute of Future Technology,South China Normal University,Guangzhou 510006,China)

机构地区：[1]School of Physics and Optoelectronics/State Key Laboratory of Luminescent Materials and Devices,Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices,Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques,South China University of Technology,Guangzhou 510640,China [2]Research Institute of Future Technology,South China Normal University,Guangzhou 510006,China

出　　处：《Chinese Optics Letters》2024年第3期76-82,共7页中国光学快报（英文版）

基　　金：partially supported by the National Natural Science Foundation of China(NSFC)(Nos.62375087,12374304,U1609219,and 62235014);the NSFC Development of National Major Scientific Research Instrument(No.61927816);the Mobility Programme of the Sino-German(No.M-0296);the Introduced Innovative Team Project of Guangdong Pearl River Talents Program(No.2021ZT09Z109);the Natural Science Foundation of Guangdong Province(No.2021B1515020074);the Science and Technology Project of Guangdong(No.2020B1212060002)。

摘　　要：We report a high-stability ultrafast ultraviolet(UV)laser source at 352 nm by exploring an all-fiber,all-polarizationmaintaining(all-PM),Yb-doped femtosecond fiber laser at 1060 nm.The output power,pulse width,and optical spectrum width of the fiber laser are 6 W,244 fs,and 17.5 nm,respectively.The UV ultrashort pulses at a repetition rate of 28.9 MHz are generated by leveraging single-pass second-harmonic generation in a 1.3-mm-long BiB_(3)O_(6)(BIBO)and sum frequency generation in a 5.1-mm-long BIBO.The maximum UV output power is 596 mW.The root mean square error of the output power of UV pulses is 0.54%.This laser,with promising stability,is expected to be a nice source for frontier applications in the UV wavelength window.

关 键 词：all-polarization-maintaining fiber ultrafast fiber laser UV laser 

分 类 号：TN248[电子电信—物理电子学]