DocumentCode
872780
Title
High-efficiency CW operation of 890 nm pumped holmium fluoride fibre laser
Author
Davey, S.T. ; Swain, N.A. ; King, T.A.
Volume
28
Issue
22
fYear
1992
Firstpage
2064
Lastpage
2066
Abstract
Highly efficient CW operation has been observed from the holmium transition centred at 2.024 mu m in a Tm:Ho codoped single-mode fluoride fibre laser. When pumping holmium directly at 890 nm a minimum threshold of 8.2 mW launched pump power was observed for oscillation at 2.076 mu m. A maximum slope efficiency of 30% was achieved for operation at 2.054 mu m, which corresponds to a photon conversion efficiency of 69%.
Keywords
fibre lasers; holmium; laser modes; laser transitions; optical pumping; thulium; 2.024 to 2.076 micron; 30 percent; 69 percent; 8.2 mW; 890 nm; CW operation; co-doped optical fibre; fluoride fibre laser; maximum slope efficiency; photon conversion efficiency; single-mode;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19921323
Filename
204583
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