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Optics Letters

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  • Vol. 21, Iss. 19 — Oct. 1, 1996
  • pp: 1594–1596

Spectroscopic data of the 1.8-, 2.9-, and 4.3-μm transitions in dysprosium-doped gallium lanthanum sulfide glass

T. Schweizer, D. W. Hewak, B. N. Samson, and D. N. Payne  »View Author Affiliations


Optics Letters, Vol. 21, Issue 19, pp. 1594-1596 (1996)
http://dx.doi.org/10.1364/OL.21.001594


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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–Ladenburg equation, and the theory of McCumber. The στ 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 στ 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 mm coincides with the fundamental absorption of atmospheric carbon dioxide, making the glass a potential laser source for gas-sensing applications.

© 1996 Optical Society of America

History
Original Manuscript: April 8, 1996
Published: October 1, 1996

Citation
T. Schweizer, D. W. Hewak, B. N. Samson, and D. N. Payne, "Spectroscopic data of the 1.8-, 2.9-, and 4.3-μm transitions in dysprosium-doped gallium lanthanum sulfide glass," Opt. Lett. 21, 1594-1596 (1996)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-21-19-1594


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References

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