Patent Number: 6,835,005

Title: Method for fusion splicing optical fibers

Abstract: In a method for fusing splicing optical fibers having different diameters of fiber coating portions, the fiber coating portions of optical fibers to be spliced are clamped on V-groove boards and end faces of the optical fibers are aligned. Then, the end faces of the optical fibers are fused spliced by a discharged heating. An inclination angle .theta.g of glass fibers of the fusion spliced optical fibers is measured from an observed image of a fusion splicing portion after fusion splicing the optical fibers to estimate a splice loss of the optical fibers.

Inventors: Kobayashi; Mikio (Kanagawa, JP), Ohzeki; Hiroshi (Kanagawa, JP), Tominaga; Kimiyuki (Fukuoka, JP), Hisata; Hidemitsu (Fukuoka, JP)

Assignee: Sumitomo Electric Industries, Ltd.

International Classification: G02B 6/255 (20060101); G02B 006/255 ()

Expiration Date: 12/28/2021