InAs/AlSb widely tunable external cavity quantum cascade laser around 3.2 µm

T. Kruczek, K. Fedorova, Grigorii S. Sokolovskii, R. Teissier, A. N. Baranov, E. U. Rafailov

    Research output: Contribution to journalArticlepeer-review

    21 Citations (Scopus)

    Abstract

    Room temperature, tunable, external-cavity short-wavelength InAs/AlSb quantum cascade laser (QCL) is reported. Wavelength tuning of 85nm for the spectral range between 3190 nm and 3275nm has been achieved by rotating the diffraction grating forming the external cavity. To suppress lasing inside the QCL cavity, its ridge was tilted by 7 at the external cavity end. The optimal tilting angle of the laser ridge was chosen by careful consideration of the return losses of the TM-polarized waveguide mode from the diffraction grating in a quasi-Littrow configuration and the Fabry-Perot feedback from the tilted laser facet. No antireflection coating was used.
    Original languageEnglish
    Article number011124
    Pages (from-to)1-3
    Number of pages3
    JournalApplied Physics Letters
    Volume102
    Issue number1
    DOIs
    Publication statusPublished - 2013

    Keywords

    • tunable laser
    • quantum cascade laser

    Fingerprint Dive into the research topics of 'InAs/AlSb widely tunable external cavity quantum cascade laser around 3.2 µm'. Together they form a unique fingerprint.

    Cite this