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Spontaneous improvement of spatial coherence and frequency locking in high-pump-power multimode lasers

Papoff, F. and D'Alessandro, G. (2004) Spontaneous improvement of spatial coherence and frequency locking in high-pump-power multimode lasers. Physical Review A, 69 (6). 063805-1. ISSN 1050-2947

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Abstract

By using the time average of amplitude products we are able to identify changes in the dynamical complexity and the spatial coherence of a multimode laser. We find that there are cases in which as the pump increases, the dynamical complexity decreases and the spatial coherence improves. In some limiting cases the complexity is reduced to zero and the beam is completely coherent spatially. We show that these phenomena are caused by phase synchronization of the mode amplitudes and that they can be observed using slow detectors.

Item type: Article
ID code: 2958
Keywords: lasers, amplitude, spatial coherence, optics, Optics. Light, Atomic and Molecular Physics, and Optics
Subjects: Science > Physics > Optics. Light
Department: Faculty of Science > Physics
Related URLs:
    Depositing user: Mr Derek Boyle
    Date Deposited: 23 Feb 2007
    Last modified: 04 Sep 2014 12:42
    URI: http://strathprints.strath.ac.uk/id/eprint/2958

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