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Proceedings Paper

Spatial and temporal characteristics of TEA-CO2 laser action with intracavity vanadium dioxide mirrors
Author(s): Aleksandr I. Sidorov; Eugene N. Sosnov
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Paper Abstract

In a laser with the cavity, formed by the mirrors with thermal non-linearity, in some conditions the moving transverse spatial structures can occur. In this report, on the base of computer simulation, the analyses of dynamics of such structures have been performed for two cases: for the cavity with one non-linear mirror with dR/dT > 0 and for the conjugate cavity with two non-linear mirrors which have dR/dT of different signs. In the example of TEA-CO2 laser with light-controlled vanadium dioxide mirrors, we have shown that in the first case intracavity interaction of radiation with the non-linear mirror makes possible the control of shape and duration of leading edge of laser pulse and laser mode composition. In the second case one can obtain the regime of directed movement of laser action region with the velocity of 5 - 50 mm/microsecond(s) , which can be used in scan laser systems. The influence of optical and thermal parameters of non-linear mirrors on the laser action dynamics is discussed.

Paper Details

Date Published: 24 May 1999
PDF: 8 pages
Proc. SPIE 3611, Laser Resonators II, (24 May 1999); doi: 10.1117/12.349246
Show Author Affiliations
Aleksandr I. Sidorov, Institute for Laser Physics (Russia)
Eugene N. Sosnov, Institute for Laser Physics (Russia)

Published in SPIE Proceedings Vol. 3611:
Laser Resonators II
Alexis V. Kudryashov, Editor(s)

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