In-cavity beam cleaning by anti-resonant hollow-core fiber spliced to multimode Yb-doped fiber

Huizi Li; Charu Goel; Jichao Zang; Wonkeun Chang; Seongwoo Yoo

doi:10.1364/CLEO_SI.2022.SF3I.7

Conference on Lasers and Electro-Optics
Technical Digest Series (Optica Publishing Group, 2022),
paper SF3I.7
•https://doi.org/10.1364/CLEO_SI.2022.SF3I.7

In-cavity beam cleaning by anti-resonant hollow-core fiber spliced to multimode Yb-doped fiber

Huizi Li, Charu Goel, Jichao Zang, Wonkeun Chang, and Seongwoo Yoo

CLEO: Science and Innovations 2022

San Jose, California United States
15–20 May 2022
ISBN: 978-1-957171-05-0

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Controlling the Properties of Light (SF3I)

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H. Li, C. Goel, J. Zang, W. Chang, and S. Yoo, "In-cavity beam cleaning by anti-resonant hollow-core fiber spliced to multimode Yb-doped fiber," in Conference on Lasers and Electro-Optics, Technical Digest Series (Optica Publishing Group, 2022), paper SF3I.7.

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Abstract

We demonstrated that an anti-resonant hollow-core fiber, exhibiting large higher-order mode extinction ratio, works as an efficient spatial mode filter inside a cavity, improving the M² from 2.09 to 1.39 at 57.7 W laser output.

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