基于光子灯笼的976 nm半导体激光相干合束

Dong Yijia, Liu Jie, Zhao Xinrui,Lin Xingchen,Ning Yongqiang, Wang Lijun,Zhu Hongbo

Laser & Optoelectronics Progress（2024）

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Abstract

采用具有模式转换和无损传输特性的三模非模式选择光子灯笼(PL)实现了 976 nm波长的半导体激光的相干合束.相对于半导体激光常规空间孔径相干合束的方式,所提合束光场不会产生旁瓣,且能拥有较高的光束质量.通过仿真PL合束特性,搭建合束实验系统,最终976 nm波长的半导体激光基模输出功率达99.7 mW,转换效率为33.2％.实验结果表明,此合束系统实现了模式转换,使半导体激光能够以基模输出,展现了一种有潜力的半导体激光相干合束的方法.

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Key words

diode laser,photonic lantern,coherent beam combining,phase modulation,fiber mode

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