Method and apparatus for heating fusion spliced portion of optical fibers and optical fiber array

摘要

A vicinity of the fusion spliced portion (5) of optical fibers is mounted on a heating board (11,12), after the dissimilar optical fibers (1a,1b) having the different mode field diameters are fusion spliced. The vicinity of the fusion spliced portion (5) of the optical fibers (1a,1b) is then heated by a heat source (6) via the heating board (11,12).