Efficiency and Threshold Characteristics of Spectrally Beam Combined High-Power Diode Lasers

被引：9
|
作者：
Sun, Fangyuan [1 ,2 ]
Shu, Shili [1 ]
Hou, Guanyu [1 ,2 ]
Wang, Lijie [1 ]
Zhang, Jun [1 ]
Peng, Hangyu [1 ]
Tian, Sicong [1 ]
Tong, Cunzhu [1 ]
Wang, Lijun [1 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Luminescence & Applicat, Changchun 130033, Jilin, Peoples R China
[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
来源：
IEEE JOURNAL OF QUANTUM ELECTRONICS | 2019年 / 55卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Efficiency; laser diode array; threshold; spectral beam combining; EXTERNAL-CAVITY;
D O I：
10.1109/JQE.2018.2890287
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The efficiency, threshold characteristics, and the stability of spectral beam combining (SBC) of diode laser array had been studied based on different output couplers (OC). It was found that the lower OC reflectivity, lower internal loss, and shorter cavity-length of emitter were helpful for the realization of high efficiency SBC in an external cavity. However, too low OC reflectivity would also result in an unstable combining with the characteristic of side lobes appeared in far-field and the degraded efficiency. The influence of OC reflectivity on threshold current, lasing spectra, and the beam quality of SBC was investigated and analyzed.
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页数：7
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