摘要
分析了增益开关脉冲建立过程,以及泵浦能量和脉宽对输出激光脉冲的影响,设计了重复频率2Hz、波长2.79μm电光调Q Cr,Er:YSGG激光泵浦的室温运转增益开关Fe:ZnSe激光器,获得了其输出激光脉冲随泵浦能量的变化情况。研究发现随着泵浦能量由10.6mJ增加到25.3mJ,Fe:ZnSe激光脉冲数量由1个增加到7个;产生多脉冲时,相邻脉冲幅值逐渐降低,同时脉宽和间隔逐渐增大;多脉冲导致Fe:ZnSe激光脉宽与单脉冲的相比增大,激光峰值功率随能量增加较慢。此研究对于控制增益开关Fe:ZnSe激光器峰值功率和指导激光器应用具有参考价值。
The pulse establishment process,the influence of pump energy and pulse width on the output laser is analyzed,and a gain-switched Fe:ZnSe laser pumped by an E-O Q-switched Cr,Er:YSGG laser with a wavelength of 2.79μm and a repetition frequency of 2 Hz at room temperature is also designed.The variation of output laser pulse with pump energy is obtained,and it shows that the number of Fe:ZnSe laser pulses increases from 1 to 7 as the pump energy increases from 10.6 mJ to 25.3 mJ.When multiple pulses are generated,the amplitude of adjacent pulses gradually decreases,while the pulse width and interval gradually increase.Due to multiple pulses,the pulse widths of the Fe:ZnSe laser increase compared with a single pulse,and the peak power of the laser increases slowly with energy.This study has a reference value on the peak power control of the gain-switched Fe:ZnSe laser,and also the laser applications.
作者
李英一
徐丽伟
赵万利
刘彤宇
吕志伟
LI Yingyi;XU Liwei;ZHAO Wanli;LIU Tongyu;YU Zhiwei(National Key Laboratory of Electromagnetic Space Securiy,Tianjin,China;Center for Advanced Laser Technology,School 0f Elecronics and Information Engineering,Hebei Universiry of Technology,Tianjin,China;Hebei Key Laboratory of Advanced Laser Technology and Equipment,Tianjin,China)
出处
《光电技术应用》
2025年第3期14-18,共5页
Electro-Optic Technology Application
