Design of a 976nm 190-W fiber-coupled laser diode

Tongtong Li; Xuyan Zhou; Guangqiang Liu; Weiqiao Zhang; Man Hu; Jianxin Zhang; Tingyu Si; Yi Jiang

doi:10.1117/12.2643971

27 December 2022 Design of a 976nm 190-W fiber-coupled laser diode

Tongtong Li, Xuyan Zhou, Guangqiang Liu, Weiqiao Zhang, Man Hu, Jianxin Zhang, Tingyu Si, Yi Jiang

Proceedings Volume 12311, Semiconductor Lasers and Applications XII; 123110E (2022) https://doi.org/10.1117/12.2643971
Event: SPIE/COS Photonics Asia, 2022, Online Only

Abstract

We design a 976nm fiber coupling module with 20 single-emitter diode lasers by ray tracing. Each emitter has an output power of 10 W. This is achieved by beam collimation of the fast and slow axis, fast-axis beam stacking using overlapping mirrors, and polarization beam combining. Through polarization multiplexing, the output power can be nearly doubled with no loss of beam quality. The core diameter of output fiber is 105μm with a numerical aperture (NA) of 0.22. Finally, the simulated result indicates that the module can have an output power over 190W. At the same time, the brightness of 14.43 MW∙cm-2∙str-1 and the coupling efficiency of 95% can be achieved.

Conference Presentation

Citation Download Citation

Tongtong Li, Xuyan Zhou, Guangqiang Liu, Weiqiao Zhang, Man Hu, Jianxin Zhang, Tingyu Si, and Yi Jiang "Design of a 976nm 190-W fiber-coupled laser diode", Proc. SPIE 12311, Semiconductor Lasers and Applications XII, 123110E (27 December 2022); https://doi.org/10.1117/12.2643971

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