An optical module outputting transmitted optical signals from a
light-emitting element to an optical fiber and guiding received optical
signals arriving from the same optical fiber to a light-receiving element
prevents transmitted optical signals originating from the light-emitting
element of a local station from coupling to the light-receiving element,
devolving into noise and impeding communication. Light-emitting element
and light-receiving element are arranged in a positional relationship,
whereby the optical axis of light-emitting element and the normal to
light-receiving surface of light-receiving element are located in a
spatially divergent relationship. Furthermore, it comprises optical path
conversion elements which, along with guiding optical signals propagating
along receiving optical waveguide to light-receiving surface of
light-receiving element, ensures that the image of the light-emitting
spot of light-emitting element projected onto a plane including
light-receiving surface of light-receiving element does not overlap with
light-receiving surface of light-receiving element.