Device and method for manufacturing photosynthesis and demultiplexing circuit

Abstract

An object of the present disclosure is to provide an optical multiplexing/demultiplexing circuit manufacturing device and an optical multiplexing/demultiplexing circuit manufacturing method for polishing a portion of a side surface of an optical fiber core wire by a desired polishing amount without measuring optical loss by cutting an active optical fiber core wire. To achieve the object described above, the optical multiplexing/demultiplexing circuit manufacturing device according to the present disclosure includes: an optical fiber core wire holding unit having a groove in which a portion of a side surface of an optical fiber core wire is embedded so as to protrude from an open plane by a predetermined distance; a polishing unit in which a polishing flat surface facing the open plane in parallel polishes the portion of the side surface of the optical fiber core wire; and a control unit that causes the polishing unit to start polishing the portion of the side surface of the optical fiber core wire and to finish polishing when the polishing flat surface of the polishing unit reaches the open plane.

Dependencies are inferred from the claim text.