Bending-insensitive single-mode hole-assisted fibers with reduced splice loss.
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.
Saitoh
Kunimasa
K
Division of Media and Network Technologies, Hokkaido University, Sapporo 060-0814, Japan. ksaitoh@ist.hokudai.ac.jp
Tsuchida
Yukihiro
Y
Koshiba
Masanori
M