Fluoride-fiber-based side-pump coupler for high-power fiber lasers at 2.8 μm

C. A. Schäfer; H. Uehara; D. Konishi; S. Hattori; H. Matsukuma; M. Murakami; S. Shimizu; S. Tokita

doi:10.1364/OL.43.002340

Fluoride-fiber-based side-pump coupler for high-power fiber lasers at 2.8 μm

C. A. Schäfer, H. Uehara, D. Konishi, S. Hattori, H. Matsukuma, M. Murakami, S. Shimizu, S. Tokita

ENG - Finemechanics

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

A side-pump coupler made of fluoride fibers was fabricated and tested. The tested device had a coupling efficiency of 83% and was driven with an incident pump power of up to 83.5 W, demonstrating high-power operation. Stable laser output of 15 W at a wavelength of around 2.8 μm was achieved over 1 h when using an erbium-doped double-clad fiber as the active medium. To the best of our knowledge, this is the first time a fluoride–glass-fiber-based side-pump coupler has been developed. A test with two devices demonstrated further power scalability.

Original language	English
Pages (from-to)	2340-2343
Number of pages	4
Journal	Optics Letters
Volume	43
Issue number	10
DOIs	https://doi.org/10.1364/OL.43.002340
Publication status	Published - 2018 May 15

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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title = "Fluoride-fiber-based side-pump coupler for high-power fiber lasers at 2.8 μm",

abstract = "A side-pump coupler made of fluoride fibers was fabricated and tested. The tested device had a coupling efficiency of 83% and was driven with an incident pump power of up to 83.5 W, demonstrating high-power operation. Stable laser output of 15 W at a wavelength of around 2.8 μm was achieved over 1 h when using an erbium-doped double-clad fiber as the active medium. To the best of our knowledge, this is the first time a fluoride–glass-fiber-based side-pump coupler has been developed. A test with two devices demonstrated further power scalability.",

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doi = "10.1364/OL.43.002340",

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T1 - Fluoride-fiber-based side-pump coupler for high-power fiber lasers at 2.8 μm

AU - Schäfer, C. A.

AU - Uehara, H.

AU - Konishi, D.

AU - Hattori, S.

AU - Matsukuma, H.

AU - Murakami, M.

AU - Shimizu, S.

AU - Tokita, S.

N1 - Funding Information: Acknowledgment. We acknowledge funding from the “Adaptable and Seamless Technology Transfer Program through Target-driven R&D” program of the Japan Science and Technology Agency. Publisher Copyright: © 2018 Optical Society of America

PY - 2018/5/15

Y1 - 2018/5/15

N2 - A side-pump coupler made of fluoride fibers was fabricated and tested. The tested device had a coupling efficiency of 83% and was driven with an incident pump power of up to 83.5 W, demonstrating high-power operation. Stable laser output of 15 W at a wavelength of around 2.8 μm was achieved over 1 h when using an erbium-doped double-clad fiber as the active medium. To the best of our knowledge, this is the first time a fluoride–glass-fiber-based side-pump coupler has been developed. A test with two devices demonstrated further power scalability.

AB - A side-pump coupler made of fluoride fibers was fabricated and tested. The tested device had a coupling efficiency of 83% and was driven with an incident pump power of up to 83.5 W, demonstrating high-power operation. Stable laser output of 15 W at a wavelength of around 2.8 μm was achieved over 1 h when using an erbium-doped double-clad fiber as the active medium. To the best of our knowledge, this is the first time a fluoride–glass-fiber-based side-pump coupler has been developed. A test with two devices demonstrated further power scalability.

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Fluoride-fiber-based side-pump coupler for high-power fiber lasers at 2.8 μm

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