Suppression of Coherence Collapse in Semiconductor Fano Lasers

Thorsten Svend Rasmussen, Yi Yu, Jesper Mørk

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    We show that semiconductor Fano lasers strongly suppress dynamic instabilities induced by external optical feedback. A comparison with conventional Fabry-Perot lasers shows orders of magnitude improvement in feedback stability and in many cases even total suppression of coherence collapse, which is of major importance for applications in integrated photonics. The laser dynamics are analyzed using a generalization of the Lang-Kobayashi model for semiconductor lasers with external feedback, and an analytical expression for the critical feedback level is derived.

    Original languageEnglish
    Article number233904
    JournalPhysical Review Letters
    Number of pages6
    Publication statusPublished - 2019


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