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Opt Lett. 2005 Jul 15;30(14):1779-81.

Bending-insensitive single-mode hole-assisted fibers with reduced splice loss.

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  • 1Division of Media and Network Technologies, Hokkaido University, Sapporo 060-0814, Japan.


We propose and demonstrate a novel type of bending-insensitive single-mode hole-assisted fiber that has a doped core and two layers of holes with two different airhole diameters. The fiber has a 9.3 microm mode field diameter, a bending loss of 0.011 dB/turn at 1.55 microm for a bending diameter of 10 mm, and a cutoff wavelength below 1.1 microm. The fiber can be fusion spliced to a conventional single-mode fiber with low loss.

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