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

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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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