Open AccessUltralow bending loss fibers with higher-order mode strippers
Author(s) -
Ngoc Hai Vu,
JinTae Kim,
Eun Sun Kim,
Chan Sik Jung,
Kyung-Goo Lee,
Inseok Hwang
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.019456
Subject(s) - materials science , epoxy , bending , optics , fiber , core (optical fiber) , optical fiber , composite material , physics
We propose and demonstrate bend-insensitive fibers equipped with higher-order mode strippers. The mode stripper is realized by filling a section of air holes with epoxy to attenuate any higher-order modes that are excited at fiber junctions and are confined by the air holes surrounding the core. We found that the higher-order modes are well suppressed with 5 cm-long epoxy columns. An ultralow bending loss of 0.025 dB/turn at a bend diameter of 10 mm, together with single-modeness, is experimentally demonstrated in a bend-insensitive fiber with six air holes 16 μm in diameter.