DocumentCode :
1101484
Title :
Emission at 1.3 μm from dysprosium-doped Ga:La:S glass
Author :
Hewak, D.W. ; Samson, B.N. ; Neto, J.A.M. ; Laming, R.I. ; Payne, David N.
Author_Institution :
Optoelectron. Res. Centre, Southampton Univ.
Volume :
30
Issue :
12
fYear :
1994
fDate :
6/9/1994 12:00:00 AM
Firstpage :
968
Lastpage :
970
Abstract :
The potential for optical amplification at 1.3 μm is demonstrated in a dysprosium-doped gallium-lanthanum-sulphide based glass. Lifetimes of 59 μs are observed for the 6H9/2-6H 15/2 transition for which the emission peaks at 1.32 μm. A radiative lifetime of 203 μs is calculated by a Judd-Ofelt analysis, indicating a total radiative quantum efficiency of 29%. A pump absorption cross-section 20 times greater than Pr3+ suggests that shorter fibre devices may be possible
Keywords :
chalcogenide glasses; dysprosium; fibre lasers; gallium compounds; lanthanum compounds; laser transitions; optical glass; sulphur compounds; 1.3 to 1.32 micron; 29 percent; Dy-doped Ga-La-S glass; GaLaS:Dy; Judd-Ofelt analysis; optical amplification; pump absorption cross-section; radiative lifetime; total radiative quantum efficiency;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el:19940645
Filename :
293073
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=1101484
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