TITLE

Simultaneous two-level lasing in GaInAsSb/GaSb strained quantum-well lasers

AUTHOR(S)
Vizbaras, Kristijonas; Kashani-Shirazi, Kaveh; Amann, Markus-Christian
PUB. DATE
August 2009
SOURCE
Applied Physics Letters;8/17/2009, Vol. 95 Issue 7, p071107
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Simultaneous two-level lasing, corresponding to ground level and excited level transitions in GaInAsSb/GaSb quantum well lasers under continuous wave operation is reported. The effect is attributed to a slowed-down intersubband relaxation in the quantum wells due to buildup of hot phonon population resulting in an incomplete clamping of the excited state population above the ground level lasing threshold.
ACCESSION #
43887466

 

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