| 摘要 |
PROBLEM TO BE SOLVED: To solve the following problem: a usable raw material is restricted due to compatibility with resins in a hybrid resin produced by mixing a photocurable resin for forming a core part with a photocurable resin for forming a clad part, thereby causing cloudiness with passage of time. SOLUTION: A method of splicing optical fibers includes: arranging the optical fibers 1, 2 to be spliced so as to substantially face a gap; filling a part between one-ends of optical fibers 1, 2 with the curable resin 11 blended with a photoinitiator and a heat polymerization initiator; curing the curable resin 11 by making light of curing start wavelength of the curable resin 11 through the optical fiber 2 from a light source 5 for curing the core part on the curable resin 11 to form the core part 13; adding heat required for heat curing on an entire non-curing part of the curing resin 11 by a heat source 12; and curing the non-curing part with reaction of the heat polymerization initiator in the non-cured curable resin 11 with a main material of the resin to form the clad part 14. COPYRIGHT: (C)2009,JPO&INPIT
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