Light receiving element with upper and side light receiving faces and an optical semiconductor module with the light receiving element and a light emitting element mounted on the same mounting unit

摘要

An optical semiconductor module with a light receiving element with an upper and side light receiving face and a light emitting element mounted on the same mounting carrier. The light receiving element has a light receiving face on an upper face and a side face covered with an antireflection film. The mounting unit has the light emitting element and the light receiving element mounted so that they encompass a positional relationship that the light emitted from the light emitting element is optically connected at least on the light receiving face of the side face of the light receiving element.