Abstract:In this paper, a new structure of photonic crystal bers (PCFs) with large negative dispersion is presented in order to compensate the positive dispersion at a wavelength of 1.55 μm. The proposed PCF has square lattice structure. In the basic structure of the cladding, it consists of four square rings, so that each ring has a number of circular holes. In the nal proposed structure, the two inner rings of the cladding are reshaped relative to the two outer rings. The rst inner ring near the core has stellar shap… Show more
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