Abstract

We report experimental observations of the mode dynamics in a weakly multimode photorefractive ring oscillator with induced astigmatism. First a gallery of transverse, higher-order Gaussian modes in the system is presented. Subsequently the dynamics of beating modes and the interactions between modes belonging to different bases are examined. The latter show the transition of modes between the three equivalent mode families experimentally. Finally regions of cavity symmetry leading to different spatial modes and mode dynamics are identified.

© 2001 Optical Society of America

Basic transverse dynamics of a photorefractive oscillator

Daniel Hennequin, Laurent Dambly, Didier Dangoisse, and Pierre Glorieux
J. Opt. Soc. Am. B 11(4) 676-684 (1994)

Pattern dynamics in photorefractive bidirectional ring-resonator experiments

Z. Chen, D. McGee, and N. B. Abraham
J. Opt. Soc. Am. B 13(7) 1482-1490 (1996)

Nonlinear dynamics of single-mode oscillations in photorefractive ring resonators

Bradley M. Jost and Bahaa E. A. Saleh
J. Opt. Soc. Am. B 11(9) 1864-1871 (1994)

Transverse effects in photorefractive ring resonators

J. Leonardy, M. Belić, and F. Kaiser
J. Opt. Soc. Am. B 15(6) 1714-1725 (1998)

Photorefractive ring oscillators

Milan Petrović and Milivoj Belić
J. Opt. Soc. Am. B 12(6) 1028-1035 (1995)