中国激光, 2013, 40 (1): 0102001, 网络出版: 2012-11-06   

高功率窄线宽全光纤结构掺铥连续光纤激光器 下载: 1064次

High-Power Narrow-Bandwidth Continuous Wave Thulium-Doped All-Fiber Laser
作者单位
北京工业大学激光工程研究院,国家产学研激光技术中心, 北京 100124
摘要
报道了高功率、窄线宽、全光纤结构的2 μm波段掺铥连续光纤激光器。该掺铥连续光纤激光器采用了主振荡功率放大(MOPA)结构设计,通过采用790 nm的多模半导体激光器抽运双包层单模掺铥光纤,获得了稳定的中心波长为1963 nm的窄线宽、连续激光输出,最大输出功率为20 mW。利用该低功率连续激光作为种子源经过两级掺铥光纤放大器后,平均输出功率达到了22 W,相应的斜率效率为44%,激光中心波长为1963 nm,3 dB光谱线宽仅为0.24 nm。
Abstract
A high-power narrow-bandwidth all-fiber thulium-doped silica fiber master oscillator power amplifier (MOPA) system that consists of a low power thulium-doped continuous wave fiber laser seed and two-stage thulium-doped double-clad fiber amplifiers pumped by fiber-pigtailed multimode diodes at 790 nm is reported. The center wavelength of the fiber laser is 1963 nm and the 3 dB bandwidth is 0.24 nm. The maximum output power is 22 W at a slope efficiency of 44% with respect to the launched pump power.
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刘江, 王璞. 高功率窄线宽全光纤结构掺铥连续光纤激光器[J]. 中国激光, 2013, 40(1): 0102001. Liu Jiang, Wang Pu. High-Power Narrow-Bandwidth Continuous Wave Thulium-Doped All-Fiber Laser[J]. Chinese Journal of Lasers, 2013, 40(1): 0102001.

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