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The band structures and optical gain in mid-infrared type II InAs/GaInSb/AlSb interband cascade lasers were investigated using an eight-band k∙p model. Threshold carrier densities with different electric fields were obtained at 80 and 300 K. Implications of the calculated results on device performance are discussed. © 1998 American Institute of Physics.
Published in:
Journal of Applied Physics
(Volume:84
,
Issue:
9
)
Date of Publication: Nov 1998