Abstract
Several laser systems have been studied in the past few years that display large, irregular fluctuations of the output intensity. Procedures to identify the chaotic origin of the fluctuations from measured time series of the intensity and to characterize the chaotic attractor will be outlined. Theoretical concepts and algorithms for control of chaotic dynamical systems and their application to chaotic lasers will be described. Recent experiments on Nd:YAG lasers with intracavity frequency doubling crystals1 and on Ndrfiber ring lasers2 have shown that it is possible to stabilize these systems to a steady state of the output intensity, as well as higher order periodic orbits consisting of complex periodic waveforms. Techniques for tracking the steady state as the pump excitation of the laser is changed will be described. Numerical computations based on laser models that reproduce aspects of the observed behavior will be discussed.
© 1993 Optical Society of America
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