Studying chaos in carbon-dioxide lasers in a graduate level optical laboratory

Emmanuil M. Rabinovich; Jacek M. Kowalski; Chris L. Littler

doi:10.1117/12.224060

13 October 1995 Studying chaos in carbon-dioxide lasers in a graduate level optical laboratory

Emmanuil M. Rabinovich, Jacek M. Kowalski, Chris L. Littler

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Proceedings Volume 2525, 1995 International Conference on Education in Optics; (1995) https://doi.org/10.1117/12.224060
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

Carbon-dioxide lasers are well-known example of optical systems, which can exhibit complex transitions from the CW to the chaotic regime in the intensity caused by the modulation of various systems parameters. They can demonstrate classical bifurcation scenarios with period doubling, bistability, and chaotic attractors. We report on a new method of observing chaos in carbon-dioxide lasers where the simple technique of modulation of the optical feedback parameters is applied. In this approach the parameters of the carbon-dioxide laser itself remain unchanged and modulation is carried out externally. This leads to a system which can be easily assembled and studied in a graduate laboratory. Experimental results show the presence of stable periodic orbits of different periods, bistability of periodic orbits and chaotic attractors with complex transition scenarios, providing a wealth of examples for the student to investigate.

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Emmanuil M. Rabinovich, Jacek M. Kowalski, and Chris L. Littler "Studying chaos in carbon-dioxide lasers in a graduate level optical laboratory", Proc. SPIE 2525, 1995 International Conference on Education in Optics, (13 October 1995); https://doi.org/10.1117/12.224060

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KEYWORDS

Modulation

Carbon dioxide lasers

Chaos

Mirrors

Bistability

Phase shift keying

Phase modulation

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