External Feedback Sensitivity of Partly Gain-Coupled DFB Semiconductor Lasers

R. Hui, Mohsen Kavehrad

    Research output: Contribution to journalArticle

    17 Citations (Scopus)

    Abstract

    External optical feedback sensitivity of partly gain-coupled DFB semiconductor lasers has been analyzed in above threshold operation regime. Both the longitudinal spatial hole burning and the nonlinear gain compression have been taken into account. A comparison has been made among λ/4-shifted, pure index-coupled and partly gain-coupled DFB laser diodes. Even though pure index-coupled and partly gain coupled DFB lasers exhibit similar sensitivity to external optical feedback at the threshold, however, gain grating can reduce the feedback sensitivity when the lasers operate well above the threshold specially when the k L parameter is high.

    Original languageEnglish (US)
    Pages (from-to)897-899
    Number of pages3
    JournalIEEE Photonics Technology Letters
    Volume6
    Issue number8
    DOIs
    StatePublished - Jan 1 1994

    Fingerprint

    Optical feedback
    Distributed feedback lasers
    Semiconductor lasers
    semiconductor lasers
    Feedback
    sensitivity
    thresholds
    Lasers
    hole burning
    lasers
    gratings

    All Science Journal Classification (ASJC) codes

    • Electronic, Optical and Magnetic Materials
    • Atomic and Molecular Physics, and Optics
    • Electrical and Electronic Engineering

    Cite this

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    External Feedback Sensitivity of Partly Gain-Coupled DFB Semiconductor Lasers. / Hui, R.; Kavehrad, Mohsen.

    In: IEEE Photonics Technology Letters, Vol. 6, No. 8, 01.01.1994, p. 897-899.

    Research output: Contribution to journalArticle

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