Measurements of the divergence evolution of a copper-vapor laser output by using a cylindrical imaging technique

David W. Coutis*, Daniel J. W. Brown, James A. Piper

*Corresponding author for this work

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    Abstract

    The temporal evolution of divergence of the output of a copper-vapor laser (CVL) operating with a high-magnification (M = 26.5) unstable resonator is measured by using a one-dimensional imaging system together with a fast gated linear diode array detector. The CVL output is found to consist of several temporally resolved components, with each successive component having lower divergence. The final component of the output has essentially diffraction-limited divergence. The divergence behavior is modeled by using an unfolded resonator-equivalent lens guide, with geometric constraints on the propagation of spontaneous emission within the lens guide, and is found to match the experimentally determined behavior.

    Original languageEnglish
    Pages (from-to)2058-2061
    Number of pages4
    JournalApplied Optics
    Volume32
    Issue number12
    DOIs
    Publication statusPublished - 20 Apr 1993

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    Bibliographical note

    This paper was published in Applied optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-32-12-2058. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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