Scientific Results

Polarization spatial dynamics in a transverse multimode CO2 laser with optical feedback

Year: 2012

Authors: De Nicola S., Meucci R., Al-Naimee K., Abdalah S.F., Arecchi F.T.

Autors Affiliation: Istituto Nazionale di Ottica-CNR,
Department of Physics, College of Science
University of Baghdad Baghdad, Iraq
High Institute of Telecommunications and Post
Al Salihiya, Baghdad, Iraq
Dipartimento di Fisica, Università di Firenze,
Firenze, Italy

Abstract: We experimentally study the polarization dynamics in a quasi isotropic CO2 laser emitting on the *01 TEM mode subjected to an optical feedback. We observe a complex dynamics in which spatial mode and polarization competition are involved. The observed dynamic is well reproduced by means of a model that provides a quantitative discrimination between the intrinsic asymmetry due to the kinetic coupling of molecules with different angular momenta and the anisotropy induced by the polarization feedback. Possible applications to polarization coding and synchronization will be presented.

Conference title: 2012 Workshop on Compeng-Complexity in Engineering
Place: Aachen-germany

KeyWords: CHAOTIC DYNAMICS; POLARIZATION; LASER
DOI: 10.1109/CompEng.2012.6242957

English