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Ytterbium doped nanostructured optical fibers for high power fiber lasers

Ytterbium doped nanostructured optical fibers for high power fiber lasers
Ytterbium doped nanostructured optical fibers for high power fiber lasers
With the breakthrough in ytterbium (Yb) doped fiber laser power scaling to kilowatt levels [1], the search for improved host glass properties has received much attention. A silica host, which is commonly used in high power fiber devices, has the advantage of being low-cost, reliable and able to sustain extremely high optical densities, as compared to other alternative glasses. However, silica is considered to be a poor host in terms of the level of Rare-earth(RE) that can be incorporated into it without the clustering effect of RE ions. This makes it difficult to achieve the high level of RE concentration in silica fibers, that is needed to shorten the device length of high power fiber lasers, which helps to suppress the non-linear effects (such as stimulated Raman and Brillouin scattering) in fibers. In this paper, we investigate Yb doped Y2O3 (or Y3Al6O12) nanoparticles in a silica rich matrix, as an alternative to the Yb in a 'standard', such as aluminium or phosphorous co-doped, silica host for use in high power fiber lasers. Y2O3 is a good host for RE incorporation, and efficient Yb:Y2O3 ceramic lasers have been reported in [2]. It is expected that Y2O3 nanoparticles within a silica host will improve the RE solubility in fibers.
Sahu, J.K.
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Paul, M.C.
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Kalita, M.P.
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Boyland, A.J.
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Codemard, C.
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Yoo, S.
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Webb, A.S.
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Standish, R.J.
ce563e93-d448-47d3-90d9-bf4dd62af9f6
Nilsson, J.
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Das, S.
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Bhadra, S.K.
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Pal, M.
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Dhar, A.
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Sen, R.
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Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Paul, M.C.
3249514a-97db-4712-b026-ca0b568c9366
Kalita, M.P.
79526e98-a17a-46ee-af82-a509d065f381
Boyland, A.J.
e6e842e6-0fe6-4de2-a9b8-ca44f30ab4d5
Codemard, C.
3aa50483-b61c-4e7e-b178-c9a88bb47bef
Yoo, S.
4714ed34-2088-4d00-a4bb-9d153384c36e
Webb, A.S.
340dabef-1825-423a-98b1-5dfd067fe181
Standish, R.J.
ce563e93-d448-47d3-90d9-bf4dd62af9f6
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Das, S.
69742cda-bca3-475d-85b1-e5f898b34365
Bhadra, S.K.
a0070bd2-1ff1-4719-8d39-5075062e8b3d
Pal, M.
f93f43f4-cac8-48ac-a71b-f1f0fc58167c
Dhar, A.
b0904960-64c1-4092-b597-0c53839f59b7
Sen, R.
6d56309b-eb70-4235-88b9-af5f5e364ba3

Sahu, J.K., Paul, M.C., Kalita, M.P., Boyland, A.J., Codemard, C., Yoo, S., Webb, A.S., Standish, R.J., Nilsson, J., Das, S., Bhadra, S.K., Pal, M., Dhar, A. and Sen, R. (2009) Ytterbium doped nanostructured optical fibers for high power fiber lasers. European Conference on Lasers and Electro-Optics (CLEO/Europe-EQEC), Germany. 13 - 18 Jun 2009.

Record type: Conference or Workshop Item (Paper)

Abstract

With the breakthrough in ytterbium (Yb) doped fiber laser power scaling to kilowatt levels [1], the search for improved host glass properties has received much attention. A silica host, which is commonly used in high power fiber devices, has the advantage of being low-cost, reliable and able to sustain extremely high optical densities, as compared to other alternative glasses. However, silica is considered to be a poor host in terms of the level of Rare-earth(RE) that can be incorporated into it without the clustering effect of RE ions. This makes it difficult to achieve the high level of RE concentration in silica fibers, that is needed to shorten the device length of high power fiber lasers, which helps to suppress the non-linear effects (such as stimulated Raman and Brillouin scattering) in fibers. In this paper, we investigate Yb doped Y2O3 (or Y3Al6O12) nanoparticles in a silica rich matrix, as an alternative to the Yb in a 'standard', such as aluminium or phosphorous co-doped, silica host for use in high power fiber lasers. Y2O3 is a good host for RE incorporation, and efficient Yb:Y2O3 ceramic lasers have been reported in [2]. It is expected that Y2O3 nanoparticles within a silica host will improve the RE solubility in fibers.

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More information

Published date: 14 June 2009
Venue - Dates: European Conference on Lasers and Electro-Optics (CLEO/Europe-EQEC), Germany, 2009-06-13 - 2009-06-18

Identifiers

Local EPrints ID: 76280
URI: http://eprints.soton.ac.uk/id/eprint/76280
PURE UUID: 96d17ace-6286-402e-bb19-b936259fdd2e
ORCID for J. Nilsson: ORCID iD orcid.org/0000-0003-1691-7959

Catalogue record

Date deposited: 18 Mar 2010
Last modified: 24 Apr 2020 00:27

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