基于光子灯笼的976 nm半导体激光相干合束
Coherent Beam Combining of 976 nm Diode Laser Based on Photonic Lantern
董一甲 1刘杰 2赵欣瑞 1林星辰 2宁永强 2王立军 2朱洪波2
作者信息
- 1. 中国科学院长春光学精密机械与物理研究所,吉林长春130033;中国科学院大学,北京100049
- 2. 中国科学院长春光学精密机械与物理研究所,吉林长春130033
- 折叠
摘要
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.
Abstract
A three-mode non-mode selective photonic lantern(PL)with mode conversion and lossless transmission characteristic is used to achieve coherent beam combining of a diode laser at 976 nm.Compared with the conventional spatial aperture coherent beam combining of diode lasers,the proposed beam combining field does not produce side flaps and has high beam quality.By simulating the beam combining characteristics of the PL and building a complete beam combining experimental system,final 976 nm diode laser fundamental mode output power reached 99.7 mW with a conversion efficiency of 33.2％.The experimental results show that this beam combining system achieves mode conversion and enables the diode laser to output in fundamental mode,demonstrating a promising method for coherent beam combining of diode lasers.
关键词
半导体激光/光子灯笼/相干合束/相位调控/光纤模式Key words
diode laser/photonic lantern/coherent beam combining/phase modulation/fiber mode引用本文复制引用
基金项目
国家自然科学基金(62222410)
吉林省科技发展计划(20210201019GX)
吉林省科技发展计划(20220201090GX)
出版年
2024
NETL
NSTL
万方数据