Reliability of strain-balanced Ga 0.331in 0.669As/ Al 0.659in 0.341As/InP quantum-cascade lasers under continuous-wave room-temperature operation

A. Evans, M. Razeghi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


The reliability of high power strain-balanced Ga 0.331In 0.669As/Al 0.659In 0.341As/InP intersubband quantum cascade lasers (QCLs) emitting at a wavelength of 4.6 μm has been studied. Constant current aging is reported for two randomly selected high-reflectivity-coated QCLs with an output power over 100 mW. QCLs are tested under continuous-wave operation at a heat sink temperature of 298 K(25°C) corresponding to an internal temperature of 378 K (105°C). Over 4000 h of continuous testing is reported without any decrease in output power.

Original languageEnglish (US)
Article number261106
JournalApplied Physics Letters
Issue number26
StatePublished - 2006

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Reliability of strain-balanced Ga <sub>0.331</sub>in <sub>0.669</sub>As/ Al <sub>0.659</sub>in <sub>0.341</sub>As/InP quantum-cascade lasers under continuous-wave room-temperature operation'. Together they form a unique fingerprint.

Cite this