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Neodymium-doped cladding pumped aluminosilicate fiber laser tunable in the 0.9 micron wavelength range

Neodymium-doped cladding pumped aluminosilicate fiber laser tunable in the 0.9 micron wavelength range
Neodymium-doped cladding pumped aluminosilicate fiber laser tunable in the 0.9 micron wavelength range
A tunable high-power cladding-pumped neodymium-doped aluminosilicate fiber laser is demonstrated. The maximum power reached was 2.4 W with a slope efficiency of 41% and a threshold pump power of 1.68 W, both with respect to launched pump power, when cladding pumped by two 808 nm diode pump sources at both fiber ends. The dependence of the tuning range on the fiber length is investigated. The tuning range changed from 922 to 942 nm for a 25 m-long fiber to 908-938 nm with a 14 m-long fiber, because of reabsorption effects. The output linewidth was 0.26 nm in a diffraction-limited beam. Operation on the challenging 0.9 µm three-level transition in neodymium-doped double-clad fiber laser was facilitated by a W-type core refractive index profile. This filtered out the unwanted and competing strong transition at 1.06 µm while guidance of 0.9 µm remained intact.
neodymium, optical fiber lasers, waveguide filters
0018-9197
1275-1282
Soh, D.B.S.
63fa85d4-c6db-461a-8383-fdb1897bf3d0
Yoo, Seongwoo
4714ed34-2088-4d00-a4bb-9d153384c36e
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Oh, Kyunghwan
b4a576b7-fc35-4c55-aa2a-50b3f3260d1b
Baek, Seungin
5ed7385c-2343-4011-907e-550efb61ace5
Jeong, Yoonchan
94ab6f5b-7623-4061-8598-8de2e7aa751e
Codemard, C.
71812eb8-df24-410b-a0dc-d1c40520d160
Dupriez, P.
4a46a78f-54e8-4611-822f-b55db0c37239
Kim, Jaesun
43d08112-4802-4f2b-b21a-8f2ba07ec4ef
Philippov, V.
221920b3-e4c6-4695-9567-33480372fbf8
Soh, D.B.S.
63fa85d4-c6db-461a-8383-fdb1897bf3d0
Yoo, Seongwoo
4714ed34-2088-4d00-a4bb-9d153384c36e
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Oh, Kyunghwan
b4a576b7-fc35-4c55-aa2a-50b3f3260d1b
Baek, Seungin
5ed7385c-2343-4011-907e-550efb61ace5
Jeong, Yoonchan
94ab6f5b-7623-4061-8598-8de2e7aa751e
Codemard, C.
71812eb8-df24-410b-a0dc-d1c40520d160
Dupriez, P.
4a46a78f-54e8-4611-822f-b55db0c37239
Kim, Jaesun
43d08112-4802-4f2b-b21a-8f2ba07ec4ef
Philippov, V.
221920b3-e4c6-4695-9567-33480372fbf8

Soh, D.B.S., Yoo, Seongwoo, Nilsson, J., Sahu, J.K., Oh, Kyunghwan, Baek, Seungin, Jeong, Yoonchan, Codemard, C., Dupriez, P., Kim, Jaesun and Philippov, V. (2004) Neodymium-doped cladding pumped aluminosilicate fiber laser tunable in the 0.9 micron wavelength range. IEEE Journal of Quantum Electronics, 40 (9), 1275-1282. (doi:10.1109/JQE.2004.833230).

Record type: Article

Abstract

A tunable high-power cladding-pumped neodymium-doped aluminosilicate fiber laser is demonstrated. The maximum power reached was 2.4 W with a slope efficiency of 41% and a threshold pump power of 1.68 W, both with respect to launched pump power, when cladding pumped by two 808 nm diode pump sources at both fiber ends. The dependence of the tuning range on the fiber length is investigated. The tuning range changed from 922 to 942 nm for a 25 m-long fiber to 908-938 nm with a 14 m-long fiber, because of reabsorption effects. The output linewidth was 0.26 nm in a diffraction-limited beam. Operation on the challenging 0.9 µm three-level transition in neodymium-doped double-clad fiber laser was facilitated by a W-type core refractive index profile. This filtered out the unwanted and competing strong transition at 1.06 µm while guidance of 0.9 µm remained intact.

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Published date: 2004
Keywords: neodymium, optical fiber lasers, waveguide filters
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 21011
URI: http://eprints.soton.ac.uk/id/eprint/21011
ISSN: 0018-9197
PURE UUID: 1d1253bf-7876-4380-beb2-9a4e192c8473
ORCID for J. Nilsson: ORCID iD orcid.org/0000-0003-1691-7959

Catalogue record

Date deposited: 07 Mar 2006
Last modified: 17 Dec 2019 01:55

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