Optical coupler, optical coupling member, optical coupling member with optical modulation function, visible light source module, optical engine and xr glasses

Abstract

An optical coupler of the present disclosure couples laser light beams with a plurality of different wavelengths, and includes an MMI connected optical coupling unit formed by connecting a first MMI type optical coupling element that shifts an incidence position and a second MMI type optical coupling element having a width wider than the width of the first MMI type optical coupling element, one or more first light input side optical waveguides that are connected to the first MMI type optical coupling element, one or more second light input side optical waveguides that are connected to the second MMI type optical coupling element and one light output side optical waveguide that is connected to the second MMI type optical coupling element.

Dependencies are inferred from the claim text.