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Spectroscopy and quantum efficiency of halide-modified gallium-lanthanum sulfide glasses doped with praseodymium

Spectroscopy and quantum efficiency of halide-modified gallium-lanthanum sulfide glasses doped with praseodymium
Spectroscopy and quantum efficiency of halide-modified gallium-lanthanum sulfide glasses doped with praseodymium
The production of competitive fibre amplifiers in the 1.3µm region requires both good quantum efficiency in the lasing ion and the capability to produce low-loss fibers. Alkali metal halide substituted gallium lanthanum sulphide (GLS) doped with Pr3+ may provide a route to both. We describe measurements of the optical spectroscopy and radiative quantum efficiency (RQE) of Pr3+ emission at 1.3µm from the 1G4 - 3H5 transition in GLS glass containing CsCl, CsI and RbCl. The results indicate that CsCl-containing GLS glasses. which have better thermal and glass-forming properties than pure GLS, can show quantum efficiencies of up to ~80% of that of pure GLS and thus are good candidates for 1.3µm fiber amplifiers.
0022-3093
176-180
Hector, J.R.
28b5aa8c-f863-4e22-b07a-6a28aed60ebc
Wang, J.
53d8d8bd-3c17-406e-9acf-961cc86b9a00
Brady, D.
55287452-1736-45f0-b6b7-64394df3258d
Kluth, M.
7412c077-8203-48d2-b770-8884244c0796
Hewak, D.W.
87c80070-c101-4f7a-914f-4cc3131e3db0
Brocklesby, W.S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
Hector, J.R.
28b5aa8c-f863-4e22-b07a-6a28aed60ebc
Wang, J.
53d8d8bd-3c17-406e-9acf-961cc86b9a00
Brady, D.
55287452-1736-45f0-b6b7-64394df3258d
Kluth, M.
7412c077-8203-48d2-b770-8884244c0796
Hewak, D.W.
87c80070-c101-4f7a-914f-4cc3131e3db0
Brocklesby, W.S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d

Hector, J.R., Wang, J., Brady, D., Kluth, M., Hewak, D.W., Brocklesby, W.S. and Payne, D.N. (1998) Spectroscopy and quantum efficiency of halide-modified gallium-lanthanum sulfide glasses doped with praseodymium. Journal of Non-Crystalline Solids, 239, 176-180. (doi:10.1016/S0022-3093(98)00735-2).

Record type: Article

Abstract

The production of competitive fibre amplifiers in the 1.3µm region requires both good quantum efficiency in the lasing ion and the capability to produce low-loss fibers. Alkali metal halide substituted gallium lanthanum sulphide (GLS) doped with Pr3+ may provide a route to both. We describe measurements of the optical spectroscopy and radiative quantum efficiency (RQE) of Pr3+ emission at 1.3µm from the 1G4 - 3H5 transition in GLS glass containing CsCl, CsI and RbCl. The results indicate that CsCl-containing GLS glasses. which have better thermal and glass-forming properties than pure GLS, can show quantum efficiencies of up to ~80% of that of pure GLS and thus are good candidates for 1.3µm fiber amplifiers.

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Published date: October 1998
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Identifiers

Local EPrints ID: 77827
URI: http://eprints.soton.ac.uk/id/eprint/77827
DOI: doi:10.1016/S0022-3093(98)00735-2
ISSN: 0022-3093
PURE UUID: 6ef80cd0-75c1-48cb-84b1-791c9c3d5fa6
ORCID for D.W. Hewak: ORCID iD orcid.org/0000-0002-2093-5773
ORCID for W.S. Brocklesby: ORCID iD orcid.org/0000-0002-2123-6712

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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:34

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Contributors

Author: J.R. Hector
Author: J. Wang
Author: D. Brady
Author: M. Kluth
Author: D.W. Hewak ORCID iD
Author: W.S. Brocklesby ORCID iD
Author: D.N. Payne

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