Spatiotemporal dynamics and high-frequency self-pulsations in two-section distributed feedback lasers

    Authors

    X. H. Wang; G. F. Li; J. Hong;S. A. Pappert

    Comments

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    Abbreviated Journal Title

    J. Opt. Soc. Am. B-Opt. Phys.

    Keywords

    WELL DFB LASERS; GENERATION; GHZ; Optics

    Abstract

    Ne present a traveling-wave large-signal simulation of the spatiotemporal dynamics of two-section distributed feedback lasers, emphasizing the self-pulsation phenomenon. For index-coupled lasers, self-pulsation is a result of the interaction of two modes, each spatially confined primarily to one section. For partially gain-coupled lasers, self-pulsation is a result of the interaction of two modes, one that is spatially confined primarily to one section and another that belongs to both sections. The self-pulsation frequency-tuning range and the modulation index of partially gain-coupled lasers are found to be substantially larger than those of index-coupled lasers. Experimentally, self-pulsation with a frequency-tuning range from 20 to 60 GHz in two-section partially gain-coupled distributed-feedback; lasers has been characterized in the electrical domain. The noise of self-pulsation was reduced experimentally by optical feedback. (C) 1999 Optical Society of America [S0740-3224(99)01811-1].

    Journal Title

    Journal of the Optical Society of America B-Optical Physics

    Volume

    16

    Issue/Number

    11

    Publication Date

    1-1-1999

    Document Type

    Article

    Language

    English

    First Page

    2030

    Last Page

    2039

    WOS Identifier

    WOS:000083519100025

    ISSN

    0740-3224

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