Switching in the PT-symmetric nonlinear periodic structures

Pavel Yu. Shestakov; Vladimir F. Marchenko; Maria V. Komissarova

doi:10.1117/12.2520691

30 April 2019 Switching in the PT-symmetric nonlinear periodic structures

Pavel Yu. Shestakov, Vladimir F. Marchenko, Maria V. Komissarova

Proceedings Volume 11026, Nonlinear Optics and Applications XI; 110260A (2019) https://doi.org/10.1117/12.2520691
Event: SPIE Optics + Optoelectronics, 2019, Prague, Czech Republic

Abstract

We study the dynamic behavior and switching of optical pulses in the PT - symmetric structure with the additional periodic modulation of the Kerr nonlinearity. In such structure the change of a refractive index by an intense optical radiation causes the change of the PT - symmetry breaking threshold while the gain/loss value is constant. As the result the system can move from the full PT - symmetry state to the broken PT - symmetry or vice versa. It is shown that despite the self-pulsation instability these transitions can be observed in the switching of long enough optical pulses. Furthermore, such active structures allow to control the amplitude enhancement of the transmitted pulses.

Citation Download Citation

Pavel Yu. Shestakov, Vladimir F. Marchenko, and Maria V. Komissarova "Switching in the PT-symmetric nonlinear periodic structures", Proc. SPIE 11026, Nonlinear Optics and Applications XI, 110260A (30 April 2019); https://doi.org/10.1117/12.2520691

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