高峰值功率小型化人眼安全脉冲光纤激光器  

High-peak-power,miniaturization,eye-safe pulsed fiber laser

作　　者：张语轩 王萱 ZHANG Yu-xuan;WANG Xuan(School of Physics and Opto-Electronic Engineering,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]北京工业大学物理与光电工程学院,北京100124

出　　处：《激光与红外》2025年第2期191-195,共5页Laser & Infrared

摘　　要：高峰值功率、高光束质量的1550 nm波段激光在生物医学、材料加工和环境监测等领域具有广泛应用。本文报道了一种基于主振荡功率放大器(MOPA)结构的人眼安全脉冲光纤激光器,成功实现了12.2 kW的峰值功率,光光转换效率达到17.7%,中心波长为1549.884 nm,3 dB谱线宽为1.182 nm,重复频率为50 kHz,脉冲宽度为6.146 ns,光束质量达到1.11。此外,本文对人眼安全脉冲光纤激光器进行了工程化设计,以增强其对环境变化的耐受性,从而进一步提高其应用潜力。High-peak-power,high-beam-quality 1550 nm laser are widely used in biomedical,material processing and environmental monitoring.In this paper,an eye-safe pulsed fiber laser based on a main oscillator power amplifier(MOPA)is reported.The output peak power of 12.2 kW is achieved successfully.The optical conversion efficiency is 17.7%,the central wavelength is 1549.884 nm,and the line width of 3dB is 1.182 nm,the frequency of the light is 50 kHz and the pulse width is 6.146 ns,the beam quality is 1.11.In addition,this paper has carried on the engineering design of the eye-safe pulsed fiber laser to enhance its tolerance to environmental changes,thus further improving its application potential.

关 键 词：光纤激光器 高峰值功率 高光束质量 人眼安全激光 环境变化耐受性 

分 类 号：TN248[电子电信—物理电子学] O436[机械工程—光学工程]