The achievement of laser action associated with intersubband transitions opens the door to a new class of infrared sources in a technologically important spectral region. Recently, we have demonstrated low temperature lasing action using a coupled-well structure with a graded-gap electron injector imbedded in a waveguide. In this work, we demonstrate high temperature (125K) operation of a similar GaInAs QW laser device.
Mid-infrared quantum cascade lasers
Proceedings of LEOS'94 ; 2 ; 385-386 vol.2
1994-01-01
135629 byte
Conference paper
Electronic Resource
English
QUANTUM-CASCADE LASERS Quantum-cascade lasers enable infrared sensors
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