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Proceedings Paper

930nm diode laser source by spectral beam combining based on a transmission grating
Author(s): Yi-Chen Xu; Zhi-Min Wang; Yong Bo; Qin-Jun Peng; Zu-Yan Xu
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Paper Abstract

We demonstrate spectral beam combining of a 930 nm diode laser bar based on an external cavity structure with -1st transmission grating. This technique is based on the wavelength selection characteristic of the grating and the feedback by external cavity. Beams from each emitters of the diode laser array are locked at different wavelengths and overlap in the near and far fields. With the maximum continuous wave (CW) injection current of 90 A, a CW output power of 49.6 W and a spectral beaming combining efficiency of 61.3% are achieved.

Paper Details

Date Published: 17 May 2019
PDF: 6 pages
Proc. SPIE 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019), 111702R (17 May 2019);
Show Author Affiliations
Yi-Chen Xu, Key Lab. of Solid-state Laser, Technical Institute of Physics and Chemistry (China)
Key Lab. of Functional Crystal and Laser Technology (China)
Univ. of Chinese Academy of Sciences (China)
Zhi-Min Wang, Key Lab. of Solid-state Laser, Technical Institute of Physics and Chemistry (China)
Key Lab. of Functional Crystal and Laser Technology (China)
Yong Bo, Key Lab. of Solid-state Laser, Technical Institute of Physics and Chemistry (China)
Key Lab. of Functional Crystal and Laser Technology (China)
Qin-Jun Peng, Key Lab. of Solid-state Laser, Technical Institute of Physics and Chemistry (China)
Key Lab. of Functional Crystal and Laser Technology (China)
Zu-Yan Xu, Key Lab. of Solid-state Laser, Technical Institute of Physics and Chemistry (China)
Key Lab. of Functional Crystal and Laser Technology (China)


Published in SPIE Proceedings Vol. 11170:
14th National Conference on Laser Technology and Optoelectronics (LTO 2019)
Jianqiang Zhu; Weibiao Chen; Zhenxi Zhang; Minlin Zhong; Pu Wang; Jianrong Qiu, Editor(s)

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