Cavity-length effects of high-temperature high-power continuous-wave characteristics in quantum-cascade lasers

J. S. Yu*, A. Evans, J. David, L. Doris, S. Slivken, M. Razeghi

*Corresponding author for this work

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

The effects of cavity length on high-temperature high-power continuous wave (cw) characteristics of λ=6 μm, 15 μm wide quantum cascade lasers (QCL) were studied. It was found that for a high reflectivity (HR) coated 3 mm long laser, the maximum cw operating temperature could be achieved up to 313 K with a 17 mW output power. A high cw output power of 213 mW was also obtained for a HR coated 15 μm wide and 4 mm long laser at 298 K. The thermal resistance was also analyzed at temperatures above 283 K for HR coated lasers with different cavities.

Original languageEnglish (US)
Pages (from-to)5136-5138
Number of pages3
JournalApplied Physics Letters
Volume83
Issue number25
DOIs
StatePublished - Dec 22 2003

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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