| Numéro |
J. Phys. I France
Volume 3, Numéro 3, March 1993
|
|
|---|---|---|
| Page(s) | 717 - 732 | |
| DOI | https://doi.org/10.1051/jp1:1993157 | |
DOI: 10.1051/jp1:1993157
J. Phys. I France 3 (1993) 717-732
1 Laboratoire d'Optique Appliquée, Ecole Polytechnique, ENSTA, Centre de l'Yvette, 91120 Palaiseau, France
2 Laboratoire de l'Accélérateur Linéaire, Groupe VIRGO, Bâtiment 208, Université d'Orsay, 91405 Orsay, France
42.20 - 42.78 - 04.80
© Les Editions de Physique 1993
J. Phys. I France 3 (1993) 717-732
Numerical model of transient thermal effects in high power optical resonators
Patrice Hello1, 2 and Jean-Yves Vinet11 Laboratoire d'Optique Appliquée, Ecole Polytechnique, ENSTA, Centre de l'Yvette, 91120 Palaiseau, France
2 Laboratoire de l'Accélérateur Linéaire, Groupe VIRGO, Bâtiment 208, Université d'Orsay, 91405 Orsay, France
(Received 17 July 1992, accepted in final form 5 October 1992)
Abstract
We present a non-linear model of a Fabry-Perot resonator where the stored power can heat the mirrors and induce thermal aberrations,
which, in turn, change the resonant wave. We first describe a sequential modelling of the temperature evolution, thermal aberrations
and stored power; this model is then implemented with the help of a numerical propagation code. We give numerical examples
in the field of cavities involved in gravitational wave interferometric antennas, for which thermal problems may arise and
restrict their sensitivity.
42.20 - 42.78 - 04.80
© Les Editions de Physique 1993