Coherence manifestation in a continuous-wave laser

M. Eichhorn, Markus Pollnau

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


    We extend the existing theory of continuous-wave lasers by systematically considering spontaneous emission. In a simple rate-equation approach, the laser eigenvalue, defined as the ratio of coherent photons coupled out of the resonator divided by the number of photons coupled in via spontaneous emission, emerges as the fundamental parameter describing a continuous-wave laser. We derive a general equation for the laser eigenvalue and confirm the point at which coherence manifests itself in the resonator. The theory describes all types of lasers of three-level, four-level, or any intermediate nature.
    Original languageUndefined
    Title of host publicationLaser Sources and Applications II, Photonics Europe
    Place of PublicationBellingham, WA
    PagesPaper 91350A
    Number of pages6
    ISBN (Print)978-1-62841-083-9
    Publication statusPublished - May 2014
    EventLaser Sources and Applications II, Photonics Europe, Brussels, Belgium: Laser Sources and Applications II, Photonics Europe - Bellingham, WA
    Duration: 1 May 2014 → …

    Publication series

    NameProceedings of the SPIE


    ConferenceLaser Sources and Applications II, Photonics Europe, Brussels, Belgium
    CityBellingham, WA
    Period1/05/14 → …


    • IOMS-APD: Active Photonic Devices
    • continuous-wave laser
    • METIS-304092
    • IR-90654
    • Coherence
    • EWI-24709

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