Quantum cascade lasers emitting near 2.6 μm

Cathabard, O.; Teissier, R.; Devenson, J.; Moreno, J. C.; Baranov, A. N.
April 2010
Applied Physics Letters;4/5/2010, Vol. 96 Issue 14, p141110
Academic Journal
Quantum cascade lasers (QCLs) emitting at wavelengths as short as 2.63–2.65 μm are demonstrated. The InAs/AlSb QCL design was optimized to weaken carrier leakage into the L-valley by reducing coupling between the active InAs quantum wells. The lasers with HR-coated facets operated up to 175 K.


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