Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf
1 PublicationAbove room temperature operation of short wavelength (lambda=3.8 µm) strain-compensated In0.73Ga0.27AsAlAs quantum-cascade lasers
Semtsiv, M. P.; Ziegler, M.; Dressler, S.; Masselink, W. T.; Georgiev, N.; Dekorsy, T.; Helm, M.
Abstract
We demonstrate the design and implementation of a broad-gain and low-threshold (Jth = 860 A/cm2 at 8 K) quantum-cascade laser emitting between 3.7 and 4.2 µm. The active region design is based on strain-compensated In0.73Ga0.27AsAlAs on InP. Laser operation in pulsed mode is achieved up to a temperature of 330 K with maximum single-facet output peak powers of 6 W at 8 K and 240 mW at 296 K. The temperature coefficient T0 is 119 K.
Keywords: QCL; quantum cascade laser; room temperature; low-threshold; strain-compensated; InGaAs; AlAs
-
Applied Physics Letter 85(2004), 1478-1480
DOI: 10.1063/1.1789246
Cited 73 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-6575