Nonstationary Two-Wave Interaction in a Cubic Gyrotropic Photorefractive Crystal With Applied Ac Electric Field

Litvinov, R. V.; Chistyakov, S. G.; Шандаров, С. М.

doi:10.1364/pemd.2001.679

Photorefractive Effects, Materials, and Devices 2001

DOI: 10.1364/pemd.2001.679

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Nonstationary Two-Wave Interaction in a Cubic Gyrotropic Photorefractive Crystal With Applied Ac Electric Field

R. V. Litvinov¹,

S. G. Chistyakov²,

С. М. Шандаров³

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2024

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“…Now, the application of an external sinusoidal field affects this relationship, which in turn affects the spatio-temporal evolution process, resulting in a complex modulation in coupling [45]. Such modulations that occur on the application of a square-wave electric field has already been investigated [46]. Accordingly, Equation ( 3) is applicable to time-varying applied electric fields when the period of the applied field is greater than the free-carrier lifetime.…”

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confidence: 99%

Period-Doubling Route to Chaos in Photorefractive Two-Wave Mixing

Saju,

Kinashi,

Tsutsumi

et al. 2024

Photonics

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This paper investigates the possibilities of complex nonlinear dynamic signal generation using a simple photorefractive two-wave mixing system without any feedback using numerical simulations. The novel idea is to apply a sinusoidal electric field to the system inroder to extract nonlinear dynamic behavior. The mathematical model of the system was constructed using Kogelnick’s coupled wave equations and Kukhtarev’s material equation. The spatio-temporal evolution of the system was simulated in discrete steps numerically. The temporal evolution of the output light intensity exhibits period doubling, behavior which is a characteristic feature of complex nonlinear dynamic systems. A bifurcation diagram and Lyapunov exponentials confirm the presence of the period-doubling route to chaos in the system. The observed complex signal pattern varies uniformly with respect to the amplitude of the applied field, indicating a controllable nonlinear dynamic behavior. Such a system can be very useful in applications such as photonic reservoir computing, in-materio computing, photonic neuromorphic networks, complex signal detection, and time series prediction.

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mentioning

confidence: 99%

Period-Doubling Route to Chaos in Photorefractive Two-Wave Mixing

Saju,

Kinashi,

Tsutsumi

et al. 2024

Photonics

View full text Add to dashboard Cite

show abstract

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Nonstationary Two-Wave Interaction in a Cubic Gyrotropic Photorefractive Crystal With Applied Ac Electric Field

Cited by 1 publication

References 0 publications

Period-Doubling Route to Chaos in Photorefractive Two-Wave Mixing

Period-Doubling Route to Chaos in Photorefractive Two-Wave Mixing

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