Demonstration of 3.5 µm Ga1-xInxSb/InAs superlattice diode laser

Abstract
A demonstration of a semiconductor diode laser based on a type-II Ga1-xInxSb/InAs superlattice active layer is reported. The laser structure uses InAs/AlSb superlattice cladding layers and a multiquantum well active layer with GaInAsSb barriers and Ga1-xInxSb/InAs-superlattice wells. An emission wavelength of 3.47 µm for pulsed operation up to 160 K is observed.