High-power fiber-coupled diode laser module with mini-bar stack

Kuikui Li; Xuyan Zhou; Weiqiao Zhang; Man Hu; Jianxin Zhang

doi:10.1117/12.2687504

27 November 2023 High-power fiber-coupled diode laser module with mini-bar stack

Kuikui Li, Xuyan Zhou, Weiqiao Zhang, Man Hu, Jianxin Zhang

Proceedings Volume 12760, Advanced Lasers, High-Power Lasers, and Applications XIV; 1276011 (2023) https://doi.org/10.1117/12.2687504
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Conference Poster

Abstract

A 976nm fiber-coupled diode laser module based on stepped prisms and polarization beam combiner is proposed in this paper to solve the mismatch of beam quality in both directions of diode lasers. The beam size was compressed on the fast and slow axis without using a prism stack for beam shaping. Based on that, a laser stack of eight mini bars was coupled into a fiber with a core diameter of 200 μm and a numerical aperture of 0.22. The simulation results show that the output power of the fiber-coupled module is 597 W, the brightness is almost 12.5 MW/(cm² ·sr), and the optical-to-optical conversion efficiency is 93.28%. The fiber-coupled module proposed in this paper can not only achieve high power outputs but is also widely used in the fields of material processing and industrial.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Kuikui Li, Xuyan Zhou, Weiqiao Zhang, Man Hu, and Jianxin Zhang "High-power fiber-coupled diode laser module with mini-bar stack", Proc. SPIE 12760, Advanced Lasers, High-Power Lasers, and Applications XIV, 1276011 (27 November 2023); https://doi.org/10.1117/12.2687504

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