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Ultrafast All-Optical Switching Using All-Solid Dual-Core Photonic Crystal Fiber

Propagation of femtosecond solitons is studied in a novel dual-core all-solid photonic crystal fibre combining two thermally matched soft glasses, which ensures highly nonlinear interaction. The microstructure of the fibre was designed by optimization of the fibre dispersion and coupling properties with aim to ensure switchable self-trapping of high-order solitons. We present preliminary numerical simulations of the nonlinear propagation at different excitation wavelengths with various ratios of the anomalous dispersion and coupling length values. According to the results spectral intensity switching potential of the new all-solid dual-core photonic crystal fibre is predicted applying 1700 nm excitation wavelength at 14 mm fibre length.