Abstract
InAs/AlSb quantum cascade lasers emitting at 3.06 and 3.22 μm at room temperature has been studied. The lasers with high reflection coating on back facets operated in pulse mode up to 400 and 423 K, respectively. The obtained results showed no dramatic performance degradation of the InAs-based QCLs with decreasing emission wavelength down to 3 μm.
Highlights
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not
The documents may come from teaching and research institutions in France or abroad, or from public or private research centers
4 μm performances of these InP-based Quantum cascade lasers (QCL) degrade with decreasing emission wavelength because the conduction band offset between the GaInAs wells and AlInAs barriers is insufficient to host intersubband transitions of such high energies
Summary
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. High temperature operation of short wavelength InAs-based quantum cascade lasers.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
