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Title: All-solid antiresonant fiber design for high-efficiency three-level lasing in ytterbium-doped fiber lasers
Authors: Goel, Charu
Yoo, Seongwoo
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2022
Source: Goel, C. & Yoo, S. (2022). All-solid antiresonant fiber design for high-efficiency three-level lasing in ytterbium-doped fiber lasers. Optics Letters, 47(5), 1045-1048.
Project: QEP-P4
Journal: Optics Letters
Abstract: We propose and investigate an all-solid ytterbium-doped antiresonant fiber (YbARF) design to inherently suppress four-level lasing with >20 dB/m of selective loss and achieve high-efficiency three-level lasing while maintaining near-diffraction-limited operation with an ultra-large mode area of approximately 3630 µm2. The YbARF is designed such that the high-gain wavelengths corresponding to four-level lasing lie in the resonance band characterized by high confinement loss. This enables three-level lasing with high efficiency in a short (0.8-m-long) YbARF, making it a potential candidate for high-peak-power ultrafast lasers at 976 nm. We discuss fiber design considerations and detailed simulation results for three-level lasing performance in the YbARF, which promises >85% lasing efficiency in a single-pass pump configuration. These design concepts can be easily extended to suppress high-gain wavelengths in other rare-earth-doped (e.g., with thulium, erbium, and neodymium) fiber amplifiers or lasers.
ISSN: 0146-9592
DOI: 10.1364/OL.453781
DOI (Related Dataset): 10.21979/N9/ROYJMH
Rights: © 2022 Optica Publishing Group. All rights reserved. This paper was published in Optics Letters and is made available with permission of Optica Publishing Group.
Fulltext Permission: embargo_20230223
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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