Distributed feedback quantum cascade lasers

Jérome Faist, Claire Gmachl, Federico Capasso, Carlo Sirtori, Deborah L. Sivco, James N. Baillargeon, Alfred Y. Cho

Research output: Contribution to journalArticlepeer-review

353 Scopus citations


Pulsed single mode operation of distributed feedback quantum cascade lasers is reported above room temperature at both 5.4 and 8 μm wavelengths. Peak optical powers up to 60 mW at 300 K are obtained with a tuning range of ∼60 nm from 100 to ∼320 K. The linewidth is limited by thermal drift during the pulse with a typical value of 0.3 cm-1 for a 10 ns long pulse at 300 K.

Original languageEnglish (US)
Pages (from-to)2670-2672
Number of pages3
JournalApplied Physics Letters
Issue number20
StatePublished - May 19 1997
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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