自研20 μm/400 μm光纤实现0.3 nm 4.8 kW单模激光输出
Chinese Journal of Lasers(2023)
Abstract
高功率窄线宽光纤激光器除具备光束质量好、光电转换效率高、结构紧凑等优点外,还具有相干性好的特点,可作为光束合成的子束,从而突破单纤功率限制,进一步提升光纤激光的输出功率.目前,国防科技大学研究人员在窄线宽光纤激光器中已实现6.12 kW的激光输出,其3 dB线宽为0.8 nm,光束质量为Mx2=1.43,My2=1.36.该系统中用作激光增益介质的是普通阶跃型20 μm/400 μm双包层掺镱光纤(YDF).
MoreKey words
μm/400
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