Comparison of quasi-symmetrical and asymmetrical mode beatings in two-section partially gain-coupled DFB lasers

    Authors

    M. Al-Mumin;G. F. Li

    Comments

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    Abbreviated Journal Title

    Opt. Quantum Electron.

    Keywords

    distributed feedback lasers; microwave generation; self-pulsating; lasers; semiconductor lasers; ultra-fast photonics; CLOCK RECOVERY; SIMULATION; Engineering, Electrical & Electronic; Optics

    Abstract

    The self-consistent mode-beating model is applied to a two-section partially gain-coupled distributed feedback (TS-GC DFB) laser with low coupling strengths. The model is based on introducing a fixed detuning parameter to the governing rate equations of the slowly-varying fields. The existence of quasi-symmetrical, a mix of quasi-symmetrical and asymmetrical, and asymmetrical mode beating depends on the coupling strength of the cavity. The quasi-symmetrical mode beating predicted here is similar in characteristics to the mode beating found in index-coupled self-pulsating lasers. It has a continuous and a wide tuning range. The asymmetrical mode beating is capable of producing self-pulsations over multiple self-pulsating regimes and higher self-pulsating frequencies than the quasi-symmetrical mode beating.

    Journal Title

    Optical and Quantum Electronics

    Volume

    38

    Issue/Number

    12-14

    Publication Date

    1-1-2006

    Document Type

    Article; Proceedings Paper

    Language

    English

    First Page

    1045

    Last Page

    1051

    WOS Identifier

    WOS:000244953900013

    ISSN

    0306-8919

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