TITLE

Optically pumped mode-locked PbS1-xSex lasers

AUTHOR(S)
Vilhelmsson, K.; Valk, B.; Salour, M. M.; Chu, T. K.
PUB. DATE
March 1987
SOURCE
Applied Physics Letters;3/30/1987, Vol. 50 Issue 13, p807
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report the first optically pumped, mode-locked PbS1-xSex (x=0 and 0.3), semiconductor lasers with an external cavity. The materials lased at 4.1 and 4.8 μm, respectively. The output average power was estimated at about 1 mW when pumped with 250 mW average power from a mode-locked Nd-YAG laser. The demonstrated PbS1-xSex lasers were operated cw mode locked at a temperature of 8 K. Lasing was observed at temperatures up to 150 K. However, above 50 K it was necessary to chop the pump beam in order to maintain lasing. By varying the stoichiometric composition x, lasing throughout the wavelength span from 4 to 8 μm can be accomplished.
ACCESSION #
9822479

 

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