基于光纤光栅的高功率光纤激光器

High-power Fiber Laser Based on Fiber Grating

分析了光纤光栅的选频原理以及光纤光栅基高功率光纤激光器的阈值特性和输出特性 采用紫外写入的光纤光栅做谐振腔 ,研制了全光纤结构的高功率光纤激光器 ,泵浦阈值为 186mW ,最大输出功率 1.78W ,斜率效率 5 9% 。

The characteristic of fiber grating for selecting wavelength is analyzed; the threshold and output characteristics of high power fiber laser are discussed. By using fiber grating as Fabry Perot cavity, a high power fiber laser is developed. The threshold pump power is 186 mW, the max. output power is measured as 1.78 W at 1099 nm with absorbed pump power of 3W, the slope efficiency is 59% Experimental results are in accord with theory.