Physics – Optics
Scientific paper
2002-10-21
Physics
Optics
14 pages, 6 figures, submitted to Opt. Comm
Scientific paper
10.1016/S0030-4018(03)01114-3
We study experimentally and theoretically the polarization alternation during the switch-on transient of a quasi-isotropic CO$_2$ laser emitting on the fundamental mode. The observed transient dynamics is well reproduced by means of a model which provides a quantitative discrimination between the intrinsic asymmetry due to the kinetic coupling of molecules with different angular momenta, and the extrinsic anisotropies, due to a tilted intracavity window. Furthermore, the experiment provides a numerical assignment for the decay rate of the coherence term for a CO$_2$ laser.
Allaria Enrico
Leyva I.
Meucci Riccardo
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