Metalorganic vapor-phase epitaxy of room-temperature, low-threshold InGaAs/AlInAs quantum cascade lasers

Autor: D. E. Mars, Scott W. Corzine, Gloria E Hofler, Ashish Tandon, Mariano Troccoli, Federico Capasso, David P. Bour
Rok vydání: 2004
Předmět:
Zdroj: Journal of Crystal Growth. 272:526-530
ISSN: 0022-0248
DOI: 10.1016/j.jcrysgro.2004.08.048
Popis: We have grown 30-stage AlInAs-GaInAs quantum cascade laser structures by low-pressure metalorganic vapor-phase epitaxy (MOVPE). The growth rate for the active region was set very low (0.1 nm/s), and growth stops were employed at all interfaces. The devices were operated pulsed at room temperature, with a threshold current density of 2.8 kA/cm 2 , a lasing wavelength of 7.6 μm, and a peak power of 150 mW. CW operation was achieved up to a temperature of 180 K. These characteristics compare favorably with MBE-grown QC lasers of similar structure.
Databáze: OpenAIRE