1064m被动调Q皮秒激光器研究进展

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关键词：皮秒激光；被动调 Q 技术；微片激光器；半导体可饱和吸收镜（SESAM）；键合晶体

中图分类号：TN248.4 文献标识码：A

DOI：10.37188/CJL.20250017 CSTR：32170.14.CJL.20250017

Abstract：Picosecond lasers are characterized by high pulse energy，high power density，and low thermal effects，demonstrating exceptional performance in micro-machining，precision cuting，and other applications. They are widely utilized in fields such as laser processing，aerospace，and biomedical engineering.Passive Q 1 switchingtechnology，which achieves pulsed laser outputbymodulating the Q -factor of the resonator，hasbecome a key method for generating picosecond lasers. This paper reviews the application of passive Q -switching technology in obtaining picosecond pulses，with a focus on three distinct technical approaches：microchip structures，semiconductor saturable absorber mirrrs（SESAMs）as saturable absorbers，and bonded crystals，all aimed at shortening the cavity length to achieve picosecond pulses while enhancing other performance aspects.It summarizes recent significant advancements in passive Q -switching technology within picosecond pulsed laser systems and provides insights into the future development and applications of passive Q -switched picosecond lasers.

Keywords：picosecond laser;passive Q -switching technology；microchip laser;semiconductor saturable absorber mirror（SESAM）；bonded crystals

1引言

随着激光技术不断发展，短脉冲激光光源已广泛应用于工业材料加工等过程，其大规模的应用大幅增加了对简单、紧凑且成本效益高的种子源的需求。（剩余21829字）