Spectroscopic data of the 1.8, 2.9 and 4.3µm transitions in dysprosium-doped Ga:La:S glass
Spectroscopic data of the 1.8, 2.9 and 4.3µm transitions in dysprosium-doped Ga:La:S glass
Infrared emission at 1.8, 2.9, and 4.3 µm is measured in dysprosium-doped gallium lanthanum sulfide (Ga:La:S) glass excited at 815 nm. Emission cross sections were calculated by Judd-Ofelt analysis, the Füchtbauer-Ladtenburg equation, and the theory of McCumber. The sigma tau value for the 4.3-µm transition is ~4000 times larger in the Ga:La:S glass than in a dysprosium-doped LiYF4 crystal, which has lased on this transition. The large sigma tau value and the recently reported ability of Ga:La:S glass to be fabricated into fiber form show the potential for an efficient, low-threshold mid-infrared fiber laser. The fluorescence peak at 4.3 µm coincides with the fundamental absorption of atmospheric carbon dioxide, making the glass a potential laser source for gas-sensing applications.
1594-1596
Schweizer, T.
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Hewak, D.W.
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Samson, B.N.
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Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
1996
Schweizer, T.
1b183bb4-c89d-42bf-81e0-b2e2b9af2635
Hewak, D.W.
87c80070-c101-4f7a-914f-4cc3131e3db0
Samson, B.N.
0e9f1440-04ab-4aad-994f-554d24a3a419
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
Schweizer, T., Hewak, D.W., Samson, B.N. and Payne, D.N.
(1996)
Spectroscopic data of the 1.8, 2.9 and 4.3µm transitions in dysprosium-doped Ga:La:S glass.
Optics Letters, 21 (19), .
(doi:10.1364/OL.21.001594).
Abstract
Infrared emission at 1.8, 2.9, and 4.3 µm is measured in dysprosium-doped gallium lanthanum sulfide (Ga:La:S) glass excited at 815 nm. Emission cross sections were calculated by Judd-Ofelt analysis, the Füchtbauer-Ladtenburg equation, and the theory of McCumber. The sigma tau value for the 4.3-µm transition is ~4000 times larger in the Ga:La:S glass than in a dysprosium-doped LiYF4 crystal, which has lased on this transition. The large sigma tau value and the recently reported ability of Ga:La:S glass to be fabricated into fiber form show the potential for an efficient, low-threshold mid-infrared fiber laser. The fluorescence peak at 4.3 µm coincides with the fundamental absorption of atmospheric carbon dioxide, making the glass a potential laser source for gas-sensing applications.
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Published date: 1996
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Local EPrints ID: 78075
URI: http://eprints.soton.ac.uk/id/eprint/78075
ISSN: 0146-9592
PURE UUID: 198ef5bb-39ff-4011-84d4-4b8b512e1302
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 00:05
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Author:
T. Schweizer
Author:
B.N. Samson
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