Patent ID: 11947171
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 9:
10. The method of manufacturing the optical waveguide component according to claim 9, further comprising:
a reflective film formation step for forming a reflective film for the inclined surface using the mirror surface as a target with an angle formed between an input-output direction of the optical signal in the input-output unit of the core intersecting the mirror surface and a horizontal plane to be defined in a horizontal direction of the substrate via the offset unit from the angle,
wherein in the reflective film formation step, the reflective film is formed by grinding a surface of the optical waveguide in a direction of an upper surface perpendicular to the horizontal direction of the substrate and removing an extra portion of the reflective film formed in an upper region of the inclined surface to have a width and a height that are two times or more those of a mode field in the horizontal direction of the substrate and the direction perpendicular to the horizontal direction of light that propagates through the core to be projected onto the mirror surface.