CPC G02B 6/02395 (2013.01) [C03C 25/105 (2013.01); C03C 25/1065 (2013.01); C03C 25/326 (2013.01); C03C 25/40 (2013.01); C03C 25/42 (2013.01); C03C 25/48 (2013.01); C08F 283/008 (2013.01)] | 7 Claims |
1. An optical fiber comprising a glass fiber comprising a core and a cladding, a primary resin layer in contact with the glass fiber and covering the glass fiber, and a secondary resin layer covering the primary resin layer,
wherein the primary resin layer comprises a cured product of a resin composition containing a urethane (meth)acrylate oligomer, a monomer, a photopolymerization initiator and an aromatic acid compound,
a content of the aromatic acid compound is 20 ppm or more and 12000 ppm or less based on a total amount of the resin composition,
a Young's modulus of the primary resin layer is 0.6 MPa or less at 23° C.±2° C.,
the resin composition contains the aromatic acid compound comprising two or more aromatic acid compounds, and
the aromatic acid compound comprises diphenyl phosphinic acid and trimethylbenzoic acid.
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