Low-threshold continuous-wave operation of quantum-cascade lasers grown by metalorganic vapor phase epitaxy

Mariano Troccoli, David Bour, Scott Corzine, Gloria Höfler, Ashish Tandon, Dan Mars, David Smith, Laurent Diehl, Federico Capasso

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

Abstract

We report on the realization of InGaAsInAlAs quantum-cascade lasers grown by metalorganic vapor phase epitaxy operating in continuous wave with low-threshold current densities at temperatures as high as 188 K. Threshold current densities of 950 A cm2 and output powers of 125 mW are measured at 80 K, while 3 mW of continuous output power are measured at 180 K, with a threshold of 2.5 kA cm2. In pulsed mode, peak output powers of more than 0.4 W were obtained at 80 K and of 160 mW at 300 K with thresholds of 700 A cm2 and 2.75 kA cm2, respectively.

Original languageEnglish (US)
Pages (from-to)5842-5844
Number of pages3
JournalApplied Physics Letters
Volume85
Issue number24
DOIs
StatePublished - Dec 13 2004

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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