1 中国科学院上海光学精密机械研究所, 上海 201800
2 上海市全固态激光器与应用技术重点实验室, 上海 201800
Author Affiliations
Abstract
Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
We report on a spectral beam combination of five narrow-linewidth fiber amplifiers. The five-channel output beams are combined in both the near and far field using a polarization-independent diffraction grating that mainly preserves the beam quality of the individual amplifiers. Each amplifier contains a two-stage preamplifier and a main amplifier delivering about 240 W of optical power, which allows a total combined output power of 1.23 kW with an efficiency of over 95%.
Chinese Optics Letters
2015, 13(Suppl): S21415
1 中国科学院上海光学精密机械研究所上海市全固态激光器与应用技术重点实验室, 上海 201800
2 中国科学院大学, 北京 100049
搭建了一个全光纤主振荡功率放大(MOPA)近衍射极限输出的超荧光源，线宽为亚纳米量级，最大输出功率为1509 W，输出斜率效率达到85.2%，光束质量因子稳定在M2=1.4。后向回光功率与输入功率呈线性关系，系统很好地抑制了受激布里渊散射(SBS)，并且对环境具有很好的抗干扰能力。在整个输出功率范围内，没有观察到自脉冲和弛豫振荡现象。
激光器 光纤激光器 掺镱光纤放大器 放大自发辐射 光纤布拉格光栅 中国激光
2015, 42(12): 1202009
