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Threshold singularities of optically pumped dye lasers

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Abstract

A complete theoretical model for optically pumped dye lasers is studied using the rate equation approach which includes excited singlet and triplet state absorption effects. Closed-form solutions under steady-state conditions reveal a novel nonlinear threshold phenomenon: partial reabsorption of the excited laser light can lead to a discontinuous onset of laser oscillation above laser threshold. Theoretical and experimental results for a transversely and longitudinally pumped rhodamine 6G laser are presented in terms of softmode and hardmode behavior at threshold.

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Authors and Affiliations

  1. Institut für Theoretische Physik, Universität Stuttgart, D-7000, Stuttgart-Vaihingen, Fed. Rep. Germany

    W. Heudorfer

  2. Abteilung Laserphysik, Max-Planck-Institut für biophysikalische Chemie, D-3400, Göttingen, Fed. Rep. Germany

    G. Marowsky

Authors
  1. W. Heudorfer
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  2. G. Marowsky
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Heudorfer, W., Marowsky, G. Threshold singularities of optically pumped dye lasers. Appl. Phys. 17, 181–187 (1978). https://doi.org/10.1007/BF00885253

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  • DOI: https://doi.org/10.1007/BF00885253

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