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2μm掺铥光纤激光器连续和调Q运转的实验研究
Authors
张凤娟
王加贤
Publication date
1 January 2015
Publisher
《光通信研究》编辑部
Doi
Cite
Abstract
采用二色镜和可变透过率腔镜作为谐振腔,实现了790nm半导体激光器端面泵浦下的双包层掺铥光纤激光器的连续和调Q运转。连续激光运转实验结果表明,在光纤长度和泵浦功率固定时,增益光纤存在激光输出功率最大情况下的最佳输出透过率,在70%最佳透过率时,得到激光中心波长1 930nm、输出功率5.9 W,斜率效率为46%。采用石墨烯分散液作为可饱和吸收体,插入增益光纤与输出镜之间,实现了掺铥光纤激光器的稳定被动调Q运转。当泵浦功率为3.4 W时,获得最大平均输出功率为39mW,对应的脉冲宽度为0.9μs,脉冲重复频率为67kHz,单脉冲能量为210nJ;平均输出功率、脉冲宽度与泵浦功率近似呈线性关系
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Last time updated on 26/01/2023