The optical guided wave traveling expenses resin constituent and the optical waveguide which uses that

摘要

A resin composition for an optical waveguide is provided and which comprises: an epoxy compound represented by the following general formula (1): wherein m is 0 or a positive integer, n is 0 or a positive integer and R and R' which may be the same or different are each represented by the following formula (2) or (3), wherein c is a positive integer of 1 to 3 and each one of c may be the same or different and X is represented by the following formula (4): wherein a is an integer of 0 to 2, and b is a positive integer of 1 to 3, and satisfy a condition of a + b = 3, and a is 1 to 3 in the epoxy compound represented by the formula (1); and a photoacid generator. The resin composition has a lower viscosity and is excellent in flexibility and moisture absorption resistance. An optical waveguide produced by employing the resin composition is also provided.