Optimum values of air-filling fraction for photonic crystal fibers with different configurations and fixed number of air rings

Abstract

In this study, a Gaussian amp function related to the Gaussian family is employed to approximate the output intensity profile of various arrangements of air holes in photonic crystal fibers (PCFs) with a fixed number of air rings ($N=4$). It is shown that $d/\mathrm{\Lambda }=0.5$ can be the best minimum value of air-filling fraction for all of the studied PCFs when $\lambda =1.35\mathrm{\mu m}$, whereas, for $\lambda =1.55$ and 1.65 μm, $d/\mathrm{\Lambda }=0.6$ is suitable for achieving the maximum output intensity with very low confinement loss.

© 2014 Optical Society of America

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