High-temperature (T≥470K) pulsed operation of 5.5 μm quantum cascade lasers with high-reflection coating

N. Ulbrich, G. Scarpa, A. Sigl, J. Roßkopf, G. Böhm, G. Abstreiter, M. C. Amann

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

High-temperature pulsed operation of strain-compensated quantum cascade lasers with high-reflection coating on cleaved laser facets was demonstrated. A solid-source molecular beam epitaxy (MBE) system was used for the growth of quantum cascade lasers on a low n-doped InP substrate. The HR coatings were designed for an emission emission wavelength of 5.6μm to account for the increase in emission wavelength at elevated temperatures. The demonstration revealed an increase in the operation temperature from 440 K to 470 K and a subsequent decrease in threshold current density from 8.1 to 6.5 kA/cm2.

Original languageEnglish
Pages (from-to)1341-1342
Number of pages2
JournalElectronics Letters
Volume37
Issue number22
DOIs
StatePublished - 25 Oct 2001

Fingerprint

Dive into the research topics of 'High-temperature (T≥470K) pulsed operation of 5.5 μm quantum cascade lasers with high-reflection coating'. Together they form a unique fingerprint.

Cite this