中心波长1080 nm的高功率光纤光栅研制与测试

Fabrication and test of high power fiber Bragg grating with 1080 nm central wavelength

摘要: 介绍了基于紫外光侧写和相位掩模法制作双包层光纤光栅的工艺，制作了一对中心波长1080 nm的光纤光栅，测试光谱得到其反射谱带宽分别为2 nm和1 nm。采用自制的光纤光栅搭建了一个高功率光纤振荡器，得到最高502 W的激光输出，并测试了输出激光的光谱和光束质量。

Abstract: High power double cladding fiber Bragg grating (FBG) fabrication based on ultraviolet laser and phase mask method was introduced. A pair of chirped FBGs with 1080 nm central wavelength was made. The reflection spectrum bandwidths were 2 nm and 1 nm, respectively. We adopted these FBGs to construct a fiber oscillator. whose output signal power is up to 502 W.