Abstract

Both numerical and experimental analyses are carried out to investigate the spectral characteristics of antiresonant guiding photonic crystal fibers. The transmission minima were observed at the wavelengths where ${\mathrm{LP}}_{ml}$ ($m\le 4$, $l=1,2,3,\cdots$) modes of the high-index inclusions in the cladding are cut off. As the order of modes increases, the bandwidths of the corresponding stop bands gradually reduce.

© 2008 Optical Society of America

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