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Rabinovich E. M., Kowalski J. M., Littler C. L., West B. J. Dynamical instabilities in a CO2, laser with an externally modulated optical feedback. Izvestiya VUZ. Applied Nonlinear Dynamics, 1995, vol. 3, iss. 6, pp. 37-44.

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Russian
Heading: 
Applied Problems of Nonlinear Oscillation and Wave Theory
Article type: 
Article
UDC: 
621.373-375

Dynamical instabilities in a CO2, laser with an externally modulated optical feedback

Autors: 
Rabinovich Emmanuil M., University of New Mexico
Kowalski Jacek M., University of North Texas
Littler Chris L., University of North Texas
West Bruce J., University of North Texas
Abstract: 

СО2 lasers are very sensitive to optical feedback and can be driven into a large variety of dynamical states by an external modulation of the feedback parameters. We report on the experimental results concerning instabilities of СО2 lasers induced by either an additional passive resonator of periodically varying geometrical length or an refractive index modulation in the external cavity by an electro-optical modulator. Experimental results show the presence of stable periodic orbits of different periods, bistability of periodic orbits and chaotic attractors with complex transition scenarios.

Key words: 
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Acknowledgments: 
This work was supported by the Office of Naval Research (SBIR) under Contract Number N00014-93-С-0051. We would like to thanks Dr. J. Perez Гог sufficient interest to this work. We also wish to acknowledge М. J. Steinshnider, R.E. Stallcup, and A. Aviles for technical assistance.
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Received: 
07.04.1995
Accepted: 
22.11.1995
Published: 
21.11.1996
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