Scientific Results

Self-organization of pulsing and bursting in a CO2 laser with opto-electronic feedback

Year: 2015

Authors: Freire J.G., Meucci R., Arecchi F. T., Gallas J. A. C.

Autors Affiliation: Departamento de Fisica, Universidade Federal da Paraiba, 58051-970 Joao Pessoa, Brazil;
Instituto de Altos Estudos da Paraiba, Rua Infante Dom Henrique 100-1801, 58039-150 Joao Pessoa, Brazil;
CELC, Departamento de Matematica, Universidade de Lisboa, 1649-003 Lisboa, Portugal;
Istituto Nazionale di Ottica, Consiglio Nazionale delle Ricerche, Largo E. Fermi 6, Firenze, Italy;
Università di Firenze, 50019 Sesto Fiorentino, Firenze, Italy;
Institute for Multiscale Simulations, Friedrich-Alexander Universitat, D-91052 Erlangen, Germany;
Max-Planck Institute for the Physics of Complex Systems, Nothnitzer Str. 38, 01187 Dresden, Germany

Abstract: We report a detailed investigation of the stability of a CO2 laser with feedback as described by a six-dimensional rate-equations model which provides satisfactory agreement between numerical and experimental results. We focus on experimentally accessible parameters, like bias voltage, feedback gain, and the bandwidth of the feedback loop. The impact of decay rates and parameters controlling cavity losses are also investigated as well as control planes which imply changes of the laser physical medium. For several parameter combinations, we report stability diagrams detailing how laser spiking and bursting is organized over extended intervals. Laser pulsations are shown to emerge organized in several hitherto unseen regular and irregular phases and to exhibit a much richer and complex range of behaviors than described thus far. A significant observation is that qualitatively similar organization of laser spiking and bursting can be obtained by tuning rather distinct control parameters, suggesting the existence of unexpected symmetries in the laser control space. (C) 2015 AIP Publishing LLC.

Journal/Review: CHAOS

Volume: 25 (9)      Pages from: 097607  to: 097607

More Information: J.G.F. was supported by Post-Doctoral Grant No. SFRH/BPD/43608/2008 from FCT, Portugal. R.M. and F.T.A. acknowledge financial support from Fondazione Ente Cassa di Risparmio di Firenze. All bitmaps were computed at the CESUP-UFRGS clusters, Porto Alegre, Brazil. This work was supported by the Deutsche Forschungsgemeinschaft through the Cluster of Excellence Engineering of Advanced Materials and by the Max-Planck Institute for the Physics of Complex Systems, Dresden, in the framework of the Advanced Study Group on Optical Rare Events.
DOI: 10.1063/1.4916923

Citations: 11
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