2 μm可调谐全光纤脉冲激光器
Wavelength tunable all-fiber pulse laser at 2 μm
武宇 1李保群 1王天枢1
作者信息
- 1. 长春理工大学空间光电技术国家与地方联合工程研究中心,吉林长春 130022;长春理工大学光电工程学院,吉林长春 130022
- 折叠
摘要
本文采用光纤尾纤型马赫曾德型(MZ)结构的周期性铌酸锂(LiNbO3)电光强度调制器进行主动调Q,设计了在环形腔结构中加入可调谐滤波器,实现了波长在1882 nm～1992 nm可调谐脉冲激光的稳定输出.调节施加在调制器上的信号频率,产生了激光器重复频率在15～70 kHz可调的脉冲激光.在重复频率为15 kHz时,泵浦功率为1 W时,获得最大单脉冲能量6.4μJ,峰值功率5.1 W.本研究具有全光纤化,波长大范围可调等优势,有助于进一步探索调Q脉冲激光的可调谐范围及其潜在应用.
Abstract
this paper,a periodic lithium niobate(LiNbO3)electro-optical intensity modulator with a fiber pigtail-type Mach Zengde(MZ)structure is used for active Q-tuning,and a tunable filter is designed to be incorporated into the ring cavity structure to achieve stable output of tunable pulsed lasers with wavelengths in the range of 1882 nm-1992nm.By adjusting the signal frequency applied to the modulator,pulse lasers with a tunable repetition frequency between 15 kHz and 70 kHz are produced.At a repetition frequency of 15 kHz and a pump power of 1 W,the maxi-mum single-pulse energy obtained is 6.4 μJ,with a peak power of 5.1W.This research exhibits advantages of all-fiber configuration and a wide tunable wavelength range,contributing to further exploration of the tunable range and poten-tial applications of Q-switched pulse lasers.
关键词
光纤激光器/调Q脉冲/主动调Q/波长可调谐/2/μmKey words
fiber laser/Q-switched pulse/active Q-switch/wavelength tunable/2 μm引用本文复制引用
基金项目
重庆市自然科学基金项目(CSTB2022NSCQ-MSX1342)
出版年
2024
NETL
NSTL
万方数据