TITLE

Green infrared-pumped erbium upconversion laser

AUTHOR(S)
Silversmith, A. J.; Lenth, W.; Macfarlane, R. M.
PUB. DATE
December 1987
SOURCE
Applied Physics Letters;12/14/1987, Vol. 51 Issue 24, p1977
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
An upconversion pumping scheme was used to produce cw laser action at 0.55 μm in YAlO3:Er3+ at temperatures up to 77 K on the 4S3/2→4I15/2 transition. Two infrared dye lasers at 792.1 and 839.8 nm were used as the pump sources for stepwise two-photon excitation of the 4S3/2 upper laser level at 18 406 cm-1. The laser operates in the fundamental TEM00 mode, and a cw output power of ∼1 mW was achieved with ∼200 mW pump power from each infrared dye laser.
ACCESSION #
9825249

 

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