Simultaneously at two wavelengths (5.0 and 7.5 μm) singlemode and tunable quantum cascade distributed feedback lasers

A. Straub, Claire F. Gmachl, D. L. Sivco, A. M. Sergent, F. Capasso, A. Y. Cho

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

The combination of quantum cascade distributed feedback (QC-DFB) and multiple wavelength QC-lasers was demonstrated. The combination resulted in a doubly singlemode and simultaneously tunable mid-infrared QC-DFB laser. QC-DFB lasers based on a heterogenous-cascade two-wavelength active waveguide core and a multisecond cavity featuring two different Bragg gratings were presented. Optimized laser displayed singlemode emission at λ∼5.0 and 7.5 μm simultaneously and a tunability on both modes equal to single-wavelength QC-DFB lasers.

Original languageEnglish (US)
Pages (from-to)565-567
Number of pages3
JournalElectronics Letters
Volume38
Issue number12
DOIs
StatePublished - Jun 6 2002

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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