Modeling Er/Yb fiber lasers at high powers
Modeling Er/Yb fiber lasers at high powers
Conventional models of Er/Yb co-doped fibers assume all ytterbium ions are equally involved in the energy transfer with erbium ions, governed by a singular transfer rate. This would predict output power clamping once ytterbium parasitic lasing starts, contrary to the observations that the output continued to grow albeit at a slower rate. One study explained this using elevated temperature at high powers. Our study, however, shows that elevated temperature and mode-dependent effects only play insignificant roles. A new model is developed based on the existence of isolated ytterbium ions, which can explain all the observed experimental behaviors.
16244-16255
Dong, Liang
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Matniyaz, Turghun
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Kalichevsky-Dong, Monica T.
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Nilsson, Johan
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Jeong, Yoonchan
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13 May 2020
Dong, Liang
d4e61359-c225-4bb5-9e3e-da7931a85319
Matniyaz, Turghun
30dbebd9-2412-4db1-82df-14cdf33dda55
Kalichevsky-Dong, Monica T.
9b0709a5-2323-4012-9b76-2b8177b7e998
Nilsson, Johan
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Jeong, Yoonchan
6a0b895f-687c-4b66-b45b-798e43832f8f
Dong, Liang, Matniyaz, Turghun, Kalichevsky-Dong, Monica T., Nilsson, Johan and Jeong, Yoonchan
(2020)
Modeling Er/Yb fiber lasers at high powers.
Optics Express, 28 (11), .
(doi:10.1364/OE.393853).
Abstract
Conventional models of Er/Yb co-doped fibers assume all ytterbium ions are equally involved in the energy transfer with erbium ions, governed by a singular transfer rate. This would predict output power clamping once ytterbium parasitic lasing starts, contrary to the observations that the output continued to grow albeit at a slower rate. One study explained this using elevated temperature at high powers. Our study, however, shows that elevated temperature and mode-dependent effects only play insignificant roles. A new model is developed based on the existence of isolated ytterbium ions, which can explain all the observed experimental behaviors.
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oe-28-11-16244
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Accepted/In Press date: 7 May 2020
Published date: 13 May 2020
Identifiers
Local EPrints ID: 481412
URI: http://eprints.soton.ac.uk/id/eprint/481412
ISSN: 1094-4087
PURE UUID: 4fec9a60-59d4-4e01-a9a8-c327f5b84f48
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Date deposited: 25 Aug 2023 16:56
Last modified: 18 Mar 2024 02:49
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Contributors
Author:
Liang Dong
Author:
Turghun Matniyaz
Author:
Monica T. Kalichevsky-Dong
Author:
Yoonchan Jeong
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