Single-mode tunable, pulsed, and continuous wave quantum-cascade distributed feedback lasers at λ≅4.6-4.7 μm

Rüdeger Köhler, Claire Gmachl, Alessandro Tredicucci, Federico Capasso, Deborah L. Sivco, S. N.George Chu, Alfred Y. Cho

Research output: Contribution to journalArticle

67 Scopus citations

Abstract

Single-mode tunable quantum-cascade distributed feedback lasers emitting at 4.6-4.7 μm wavelength are reported. The lasers employ strained heterostructure material with global strain compensation to provide the large band offset needed for high-performance short wavelength operation. Pulsed, continuously tunable single-mode emission is achieved from 90 to 300 K with a tuning range of 65 nm. Peak output power levels of 100 mW at room temperature are obtained. In continuous-wave operation, current tunable single-mode emission is demonstrated around liquid-nitrogen temperature with a tuning range of 20 nm (over a current range of 450 mA). The maximum output power in continuous wave at 80 K is 150 mW.

Original languageEnglish (US)
Pages (from-to)1092-1094
Number of pages3
JournalApplied Physics Letters
Volume76
Issue number9
DOIs
StatePublished - Feb 28 2000
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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