A 606 W burst-mode picosecond Yb-doped all-fiber laser with an intra-burst repetition rate of 469 MHz  

作　　者：Xinyao Li Haijuan Yu Shuzhen Zou Chaojian He Chaoyu Ning Wenjuan Wu Xuechun Chen Xuechun Lin 

机构地区：[1]Laboratory of All-Solid-State Light Sources,Institute of Semiconductors,Chinese Academy of Sciences,Beijing,China [2]College of Materials Science and Opto-Electronic Technology,University of Chinese Academy of Sciences,Beijing,China [3]Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing,China [4]Beijing Engineering Technology Research Center of All-Solid-State Lasers Advanced Manufacturing,Beijing,China [5]Southwest Institute of Technical Physics,Chengdu,China

出　　处：《High Power Laser Science and Engineering》2024年第6期168-177,共10页高功率激光科学与工程(英文版)

基　　金：financially supported by the CAS Project for Young Scientists in Basic Research(No.YSBR065);the National Natural Science Foundation of China(Nos.62225507,62175230,62175232 and 62275244);the National Key R&D Program of China(No.2022YFB3607800)

摘　　要：This paper introduces a novel fiber-based picosecond burst-mode laser system capable of operating at high power and high repetition rates. A pulse-circulating fiber ring was developed as a burst generator, achieving an intra-burst repetition rate of 469 MHz without the need for a high-repetition-rate seed source. This design also allows for flexible adjustment of the number of sub-pulses, burst repetition rate and burst shape. In addition, a master oscillator power amplifier was employed to analyze the amplification characteristics of bursts. The system demonstrated a maximum average power of 606 W, with a measured sub-pulse duration of 62 ps and the highest sub-pulse peak power of 980 kW. To the best of our knowledge, this marks the highest average power obtained in burst-mode ultrafast lasers. Such a laser system holds potential for applications in precision manufacturing, high-speed imaging, high-precision ranging and other diverse domains.

关 键 词：burst-mode laser high power high repetition rate picosecond fiber laser 

分 类 号：TN248[电子电信—物理电子学]