双模式人眼安全MOPA全光纤激光器  

Dual-mode,eye-safe MOPA all-fiber laser

作　　者：云剑[1,2] 孙传东[1] 高存孝 朱少岚[1] 何浩东[1] 冯莉[1] 牛林全[1] 董利军[1,2] 

机构地区：[1]中国科学院西安光学精密机械研究所 瞬态光学与光子技术国家重点实验室,西安710119 [2]中国科学院研究生院,北京10039

出　　处：《深圳大学学报（理工版）》2012年第4期311-315,共5页Journal of Shenzhen University(Science and Engineering)

基　　金：国家自然科学基金资助项目(61107034);中国科学院“西部之光”计划资助项目~~

摘　　要：报道了一台可实现脉冲和连续两种工作模式的全光纤激光器.激光器采用主振荡功率放大结构,种子激光器使用直接调制的单模半导体激光器,其输出波长为1 550 nm,光纤放大器包括两级预放大器和一级主放大器.用于脉冲激光输出时,在重复频率50 kHz、泵浦功率4 W时,获得脉冲宽度1.7 ns、峰值功率5.1 kW的单模脉冲激光输出.用于连续激光输出时,获得平均功率为0.5 W的调制信号.该激光器能同时满足脉冲和相位两种测距功能的使用.An all-fiber laser which could work with either pulse or continuous wave （CW） mode is reported. The configuration of laser is master-oscillator power-amplifier （MOPA）, the seeder of which is a single mode directly modulated laser diode operating in wavelength of 1 550 nm, and the amplifier consists of two preamplifiers and one main amplifier. In pulse mode, the peak power of 5.1 kW and a pulse width of 1.7 ns are obtained when the repetition rate is 50 kHz and the pump power is 4 W. In CW mode, the average power of 0.5 W is obtained. By using this laser, the pulse and the phase laser ranging can be realized simultaneously.

关 键 词：光电子学与激光技术 光纤激光器 光纤放大器 激光测距 人眼安全 双模式 

分 类 号：TN242[电子电信—物理电子学] TN248