TITLE

Second quantized state lasing of a current pumped single quantum well laser

AUTHOR(S)
Mittelstein, Michael; Arakawa, Yasuhiko; Larsson, Anders; Yariv, Amnon
PUB. DATE
December 1986
SOURCE
Applied Physics Letters;12/22/1986, Vol. 49 Issue 25, p1689
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Newly observed features of quantum well lasers are presented and explained with the aid of a simple model. These involve lasing with gain contributions not only from the fundamental (n=1) state, but simultaneously from the second quantized (n=2) state as well. Experimental data for current pumped GaAlAs/GaAs single quantum well lasers are presented. Very high resonator losses (>=100 cm-1) force the lasers to augment their gain with major contributions from the second quantized state. The main signature of n=2 lasing, a sudden and large increase in the lasing photon energy, is observed and explained by the theory.
ACCESSION #
9821739

 

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