Abstract
A simple hexagonal photonic crystal fiber is presented, that exhibits simultaneously high negative dispersion coefficient and high nonlinearity. The finite element method with perfectly matched absorbing layers boundary condition is used to investigate the guiding properties. The designed fiber offers large negative dispersion coefficient of about −3,471ps/(nm.km) and nonlinear coefficient of 60.09 W−1km−1 at the excitation wavelength of 1.55 μm. Confinement loss of the proposed fiber is also reported which is 0.6753dB/km. Due to its superior optical characteristics the proposed fiber can be considered as a promising candidate for dispersion compensation and super continuum generation.
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