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Parameters evolution of laser beams with quite general transverse intensity profile

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5 Author(s)
Palma, C. ; Dipt. di Fisica, Rome Univ., Italy ; Panzera, C. ; Perrone, M.R. ; De Nunzio, G.
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A plane-parallel cavity with a Gaussian reflectivity mirror has been applied to a XeCl laser medium having a spatially variable gain distribution. The evolution of the beam parameters has been experimentally analyzed as a function of the number of round trips. It is shown that in this case of intensity profiles affected by the spatial and temporal properties of the active medium gain, a theory formerly developed for the beam-parameter evolution of Gaussian Schell-model beams provides a satisfactory description of experimental measurements for the first few round trips

Published in:

Quantum Electronics, IEEE Journal of  (Volume:33 ,  Issue: 12 )