Optical module

An optical module comprising:

• a first optical waveguide disposed parallel to a substrate;
• a condensing mirror configured to reflect and condense light propagated in the first optical waveguide toward the substrate;
• a second optical waveguide that guides the light reflected by the condensing mirror to a vicinity of a surface of the substrate, the second optical waveguide having a first end on the first optical waveguide side and a second end on the substrate side, the first end having a first diameter and the second end having a second diameter that is smaller than the first diameter, and the second optical waveguide formed in a tapered shape gradually narrowing from the first end to the second end;
• and
• an optical function unit disposed on the substrate such that the light emitted from the second optical waveguide is incident on the optical function unit.