Low-Bending-Loss and Low-Splice-Loss Single-Mode Fibers Employing a Trench Index Profile

Shoichiro MATSUO, Masataka IKEDA, Hiroshi KUTAMI, Kuniharu HIMENO

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Summary :

A single-mode fiber employing a trench index profile for indoor wiring is proposed to realize low-bending loss and low-splice loss simultaneously. The designs and the advantages of the fiber over fibers with conventional step index profiles are described. The characteristics of manufactured fibers with trench index profiles are also described. One of the manufactured fibers realizes a bending loss of 0.018 dB/turn at 1550 nm for a bending radius of 7.5 mm, and a splice loss of 0.19 dB at 1550 nm in mechanical splicing to a conventional single mode fiber simultaneously. Other one of the fibers realizes a bending loss of 0.011 dB/turn at 1550 nm for a bending radius of 5 mm, and the splice loss is 0.37 dB at 1550 nm simultaneously. A total loss of a fiber employing the trench index is small and stable against the fluctuation of MFD.

Publication
IEICE TRANSACTIONS on Electronics Vol.E88-C No.5 pp.889-895
Publication Date
2005/05/01
Publicized
Online ISSN
DOI
10.1093/ietele/e88-c.5.889
Type of Manuscript
Special Section PAPER (Joint Special Section on Recent Progress in Optoelectronics and Communications)
Category
Optical Fibers, Cables and Fiber Devices

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