101. High temperature operation of λ≈3.3 µm quantum cascade lasers
- Author
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Alexei N. Baranov, J. Devenson, Roland Teissier, O. Cathabard, Institut d’Electronique et des Systèmes (IES), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Composants à Nanostructure pour le moyen infrarouge (NANOMIR), and Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
010302 applied physics ,Physics and Astronomy (miscellaneous) ,business.industry ,Chemistry ,02 engineering and technology ,021001 nanoscience & nanotechnology ,Laser ,7. Clean energy ,01 natural sciences ,law.invention ,[SPI.TRON]Engineering Sciences [physics]/Electronics ,Wavelength ,Cascade ,law ,Quantum dot laser ,0103 physical sciences ,Thermal ,Optoelectronics ,0210 nano-technology ,business ,Quantum ,Tunable laser ,Quantum well ,ComputingMilieux_MISCELLANEOUS - Abstract
We report quantum cascade lasers emitting at a wavelength near 3.3μm up to a temperature of 400K in pulsed mode. A fine tuning of the InAs∕AlSb active region design allowed to maintain efficient electron injection and to reduce thermal backfilling at high temperatures. The threshold current density is 3kA∕cm2 at 300K with characteristic temperature T0 of 175K. The lasers emitted up to 1W peak power in a single lateral mode at room temperature.
- Published
- 2007