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高功率高效率光纤耦合半导体激光模块研制
引用本文:徐丹,黄雪松,姜梦华,惠勇凌,雷訇,李强. 高功率高效率光纤耦合半导体激光模块研制[J]. 强激光与粒子束, 2015, 27(6): 061012. DOI: 10.11884/HPLPB201527.061012
作者姓名:徐丹  黄雪松  姜梦华  惠勇凌  雷訇  李强
作者单位:1.北京工业大学 激光工程研究院, 北京 1 001 24
摘    要:采用光束整形和空间合束的方法,研制出高功率、高效率多阵列光纤耦合半导体激光模块。将波长为976nm连续工作的5个标准半导体阵列,通过对快轴进行准直和快慢轴光束旋转的方式进行光束整形,准直后进行空间合束,经耦合透镜聚焦,耦合入芯径400μm、数值孔径0.22的光纤。测量结果显示:光纤的出光功率最大可达到327 W,光纤耦合效率大于93.6%。

关 键 词:半导体阵列   光束整形   光纤耦合   高功率   高耦合效率
收稿时间:2014-12-25

High power high efficiency fiber coupled diode laser module
Affiliation:1.Institute of Laser Engineering,Beijing University of Technology,Beijing 100124,China
Abstract:The high coupling-efficiency fiber coupled diode laser module is obtained by beam shaping. The wavelength of the CW diode laser bar is 976 nm, and five bars are collimated by a fast axis collimation lens. Then the beams are transformed and collimated by slow axis collimation optics. Then all the beams are combined in space, and focused into a multimode fiber (400 m core diameter, the numerical aperture (NA) is 0.22). Experimental results show that the laser output from fiber could reach 327 W, and the coupling-efficiency is more than 93.6%. Experimental results demonstrate that this module lays a foundation for multi-wavelength, polarization beam combining and the high beam quality, high coupling efficiency diode laser module with CW thousands watts class output power can be developed.
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