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    Unfolding of the period-two bifurcation in a fiber laser pumped with two modulation tones

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    Date
    1997-12
    Author
    Newell, Timothy
    Gavrielides, Athanasios
    Kovanis, Vassilios
    Sukow, David
    Erneux, Thomas
    Glasgow, S.
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    Abstract
    The effect of a small second frequency component on a pump modulated neodymium fiber laser is investigated experimentally and theoretically. This term, whose frequency is exactly half the primary driver, incites an unfolding of the attractor. It breaks the period two pitchfork bifurcation and splits the period one orbit. The modification of the bifurcation diagram is studied analytically by employing a map derived from the class B laser rate equations. We determine specific conditions and scaling laws for this phenomenon. Our analytical predictions are in good agreement with recorded experimental data.
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    http://hdl.handle.net/1850/4903
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