@inproceedings{58e042f730e5498694ddbca0a7001031,
title = "Amplitude and phase reconstruction of a doughnut pattern in a CO2 laser",
abstract = "In this paper, we present an original detection method using three fast detectors to monitor the spatio-temporal dynamics of a bimode CO 2 laser with saturable absorber. We observe that the time dependent components of the modal amplitudes increase as the frequency degeneracy lift between the TEM 01 and TEM 10 modes is reduced. Just before locking the system undergoes a period-doubling cascade leading to chaos. We record the temporal evolution of the modal amplitudes and the optical phase difference between the two modes in the specific regimes within the period-doubling cascade. Numerical simulations are in good agreement with the experiments, in particular they confirm the existence of the period-doubling cascade.",
author = "C. Lepers and V. Zehnle and Daniel Hennequin and Didier Dangoisse and Pierre Glorieux and A. Barsella and Ennio Arimondo",
year = "1996",
month = jan,
day = "1",
language = "English",
isbn = "0819421782",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
pages = "215--222",
editor = "Abraham, \{Neal B.\} and Khanin, \{Yakov I.\}",
booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",
note = "Laser Optics '95: Nonlinear Dynamics in Lasers ; Conference date: 27-06-1995 Through 01-07-1995",
}