METHOD FOR MANUFACTURING OPTICAL FIBER

摘要

PROBLEM TO BE SOLVED: To form an end face lens having an arbitrary radius of curvature at the tip end part of an optical fiber with a simple process by utilizing static electricity. SOLUTION: This method for manufacturing the optical fiber by which the end face lens is formed in the flat end face 2 of the optical fiber 1 is composed of a process in which a molten photo setting resin 4 is attached to the end face 2 of the optical fiber 1 and is held by self-empty weight as a spherical resin 4b, a process in which static electricity is imparted to the tip end of the spherical resin 4b to be shaped into a lens shape 4c, and a process in which the shaped lens shape 4c is photoset by photoirradiation 6 to form the end face lens 7. The radius r of curvature of the end face convex lens 7 is arbitrarily set.