Ultralow noise and supermode suppression in an actively mode-locked external-cavity semiconductor diode ring laser

    Authors

    C. M. DePriest; T. Yilmaz; P. J. Delfyett; S. Etemad; A. Braun;J. Abeles

    Abbreviated Journal Title

    Opt. Lett.

    Keywords

    Optics

    Abstract

    We report what is to our knowledge the lowest phase and amplitude noise characteristics achieved to date in a 10-GHz pulse train produced by the active harmonic mode locking of an external-cavity semiconductor diode laser. Supermode noise has also been suppressed below -140 dBc/Hz by use of a high-finesse fiber Fabry-Perot etalon as an intracavity filter. Novel noise sideb(C)and measurements that extend to the Nyquist offset frequency suggest a significant advantage in using harmonic (rather than fundamental) mode locking to produce ultralow-noise pulse trains, owing to the relationship between the noise roll-off frequency and the fundamental cavity frequency. (C) 2002 Optical Society of America.

    Journal Title

    Optics Letters

    Volume

    27

    Issue/Number

    9

    Publication Date

    1-1-2002

    Document Type

    Article

    Language

    English

    First Page

    719

    Last Page

    721

    WOS Identifier

    WOS:000175284000015

    ISSN

    0146-9592

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