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An Investigation of the Photonic Crystal Fiber Structure with Different Air Hole Diameter

In this study, full wave solutions are presented for a specific photonic crystal fiber (PCF) structure via the localized basis function (LBF) method. The PCF structure consists of an unbounded periodic cladding and a high index core region. In the LBF method, a guided mode localized in the core region and the transverse refractive index of the PCF structure are decomposed by using Hermite-Gaussian basis functions and periodic functions. Numerical results are presented to demonstrate the variation of the modal fields in the PCF