Injection locked multi-section gain-coupled dual mode DFB laser for terahertz generation

    Authors

    M. Al-Mumin; C. Kim; I. Kim; N. Jaafar;G. F. Li

    Comments

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    Abbreviated Journal Title

    Opt. Commun.

    Keywords

    distributed feedback lasers; terahertz generation; four-wave mixing; injection locking; SEMICONDUCTOR-LASERS; COMB GENERATION; WAVE GENERATION; FIBER; MODULATION; DISPERSION; RADIATION; Optics

    Abstract

    A dual mode multi-section gain-coupled distributed feedback laser with tunable mode spacing is subharmonically injection locked at 0.315 THz. The injected signal consists of an optical comb with harmonics 35 GHz apart and a bandwidth of approximately 1.9 THz. The optical comb is a result of strong four-wave mixing in a highly-nonlinear dispersion-shifted fiber. In order to observe locking of the multi-section laser, the output is optically downconverted to RF frequencies using the same optical comb. The locked multi-section DFB laser is a coherent and tunable optical source suitable for continuous-wave terahertz generation systems. (c) 2007 Elsevier B.V. All rights reserved.

    Journal Title

    Optics Communications

    Volume

    275

    Issue/Number

    1

    Publication Date

    1-1-2007

    Document Type

    Article

    Language

    English

    First Page

    186

    Last Page

    189

    WOS Identifier

    WOS:000247149100029

    ISSN

    0030-4018

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