Assessment of direct modulation in wireless fiber links based on heterodyning of sideband injection-locked semiconductor lasers

    Authors

    M. Al-mumin; A. Al-hajeri;G. Li

    Comments

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    Abbreviated Journal Title

    Kuwait J. Sci. Eng.

    Keywords

    amplitude modulation; injection locked semiconductor lasers; phase; modulation; sideband injection locking; wireless fiber links; LIGHT INJECTION; LOCKING; Multidisciplinary Sciences

    Abstract

    This paper presents an assessment of wireless fiber links based on heterodyning of sideband-injection locked semiconductor lasers under direct current modulation. Using the Van der Pol equations for coupled oscillators, the small-signal response of the output power and phase of injection-locked semiconductor lasers are derived. The resultant intensity and phase modulation of the injection locked laser are assessed in terms of optimum power injection ratio and phase detuning between the master and slave lasers. Intensity and phase modulation have opposite preferable locking conditions. Optimizing the locking conditions increases the efficiency of phase modulation and ensures negligible amplitude modulation of the generated microwave signal. The performance of the PM system remains superior to the AM system for all locking conditions.

    Journal Title

    Kuwait Journal of Science & Engineering

    Volume

    34

    Issue/Number

    1B

    Publication Date

    1-1-2007

    Document Type

    Article

    Language

    English

    First Page

    57

    Last Page

    71

    WOS Identifier

    WOS:000248765800004

    ISSN

    1024-8684

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