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In this paper, the results of theoretical analyses and experimental tests related to the light propagation in the photonic crystal fiber (PCF) infiltrated with liquid crystal (LC) are presented. While refractive index of the inclusion is higher than that of silica glass, analyzed photonic structure can be considered as a matrix of mutually parallel waveguide channels. This connotes discrete light...
Modal phase-matched second harmonic generation is obtained in sub-micron AlGaAs waveguides using a continuous-wave laser at telecommunication wavelengths. The tunability and robust fabrication process make this device ideal for integrated wavelength conversion.
We present an investigation on the nonlinear dynamics of intense pulses in an AlGaAs Bragg waveguide and we report the experimental observation of an intensity dependent blue-shift of the Bragg notch spectral line.
Photonic Liquid Crystal Fibers are advanced structures that benefit from a mergence of "passive" photonic crystal fiber host microstructures with "active" liquid crystal guest materials. Such a combination allows for a diversity of novel and uncommon spectral and polarization properties. The latter has simultaneously reinvigorated research in both fields of Fiber Optics and Liquid...
In this work we present the design and first experimental demonstration of integrated-waveguide, ultra-fast all-optical differentiator based on π-phase-shifted Bragg gratings. Such a photonic device was achieved in deeply-side-etched Silicon-on-Insulator (SOI) ridged waveguides. High coupling coefficient, up to 1.15 *105 m-1, achieved in fabricated set of devices, allows for the wide operational bandwidth,...
We demonstrate a novel approach to the nonlinear optical collapse control in magneto-optical Kerr media. A suitable and essential interplay between magnetically-induced birefringences is fully described via a superposition of the Cotton-Mouton and Faraday effects.
We report the theoretical and experimental demonstration of an all-optical temporal differentiator based on π-phase-shifted Bragg gratings fabricated in Silicon-on-Insulator waveguides. All-optical processing of sub-picosecond pulses was performed.
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