High-robustness good-beam-quality 3×1 signal combiner device for 10-kW all-fiber laser combining applications

Yue Li; Donglin Yan; Pengfei Zhao; Yu Liu; Yuwei Li; Rumao Tao; Honghuan Lin; Jianjun Wang

doi:10.1117/12.2624754

27 March 2022 High-robustness good-beam-quality 3×1 signal combiner device for 10-kW all-fiber laser combining applications

Yue Li, Donglin Yan, Pengfei Zhao, Yu Liu, Yuwei Li, Rumao Tao, Honghuan Lin, Jianjun Wang

Author Affiliations +

Proceedings Volume 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications; 121696G (2022) https://doi.org/10.1117/12.2624754
Event: Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 2021, Kunming, China

Abstract

In this paper, we report a high-robustness good-beam-quality 3×1 signal combiner that performs very well under high power. We use three 3.5kW fiber lasers to inject into the three ports of the combiner to achieve a high power output of 10.4kW, and the power transmission efficiency is 98.2%.The output beam quality M² _4σ and β factor are tested when the power reached the highest, which are (5.465,5.2) and 2.69 respectively. The temperature rising rate of housing is 0.9 °C/kW, is effectively controlled by water cooling package of the combiner. This 3×1 signal combiner has been used in 10-kW fiber laser product and it works well in harsh environment, demonstrating high robustness against unconventional conditions.

Citation Download Citation

Yue Li, Donglin Yan, Pengfei Zhao, Yu Liu, Yuwei Li, Rumao Tao, Honghuan Lin, and Jianjun Wang "High-robustness good-beam-quality 3×1 signal combiner device for 10-kW all-fiber laser combining applications", Proc. SPIE 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 121696G (27 March 2022); https://doi.org/10.1117/12.2624754

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