METHOD FOR MANUFACTURING OPTICAL PLUG, OPTICAL PLUG AND OPTICAL CONNECTOR

摘要

Provided is a technology capable of reducing the optical connection loss in an optical plug that uses a multicore fiber. In a method for manufacturing an optical plug, a multicore fiber having multiple cladding-covered cores is used. The method for manufacturing an optical plug includes a grinding step. In the grinding step, by grinding the end face of the multicore fiber and the end face of a ferrule into which the multicore fiber is inserted with a first grinding member having the same number of pores as the number of the multiple cores, the end face of each of the multiple cores is projected further than at least the end faces of the cladding located outward of the same end face in the radial direction of the multicore fiber.