Optical connector and optical module

An optical connector for optically coupling optical transmission members to each other, the optical connector comprising:

• a holding part for holding an end portion of an optical transmission member that is one of the optical transmission members;
• a first optical portion for allowing light from an end surface of the optical transmission member held by the holding part to enter an inside of the optical connector, or for emitting light traveling through the inside of the optical connector toward the end surface of the optical transmission member;
• and
• a second optical portion for allowing light from another optical connector holding another optical transmission member of the optical transmission members to enter the inside of the optical connector, or for emitting light traveling through the inside of the optical connector toward the other optical connector,
• wherein:
• the holding part includes a groove for disposing the optical transmission member in such a way that at least part of the end surface of the optical transmission member contacts the first optical portion, the groove extending in one direction, and
• in a cross section including an axis of the groove and an optical path between the first optical portion and the second optical portion, an angle between a surface of the first optical portion and the axis of the groove is less than 90°, the surface of the first optical portion contacting the at least part of the end surface of the optical transmission member.