930nm diode laser source by spectral beam combining based on a transmission grating

Yi-Chen Xu; Zhi-Min Wang; Yong Bo; Qin-Jun Peng; Zu-Yan Xu

doi:10.1117/12.2533742

17 May 2019 930nm diode laser source by spectral beam combining based on a transmission grating

Yi-Chen Xu, Zhi-Min Wang, Yong Bo, Qin-Jun Peng, Zu-Yan Xu

Proceedings Volume 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019); 111702R (2019) https://doi.org/10.1117/12.2533742
Event: Fourteenth National Conference on Laser Technology and Optoelectronics, 2019, Shanghai, China

Abstract

We demonstrate spectral beam combining of a 930 nm diode laser bar based on an external cavity structure with -1^st 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.

Citation Download Citation

Yi-Chen Xu, Zhi-Min Wang, Yong Bo, Qin-Jun Peng, and Zu-Yan Xu "930nm diode laser source by spectral beam combining based on a transmission grating", Proc. SPIE 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019), 111702R (17 May 2019); https://doi.org/10.1117/12.2533742

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