Patent ID: 6853776
Filing Date: 2005-02-08
Classification: G02B

Abstract:
1. An optical communication module for communicating a light signal, comprising: a groove portion comprising a V-shaped section and being formed on a surface of an optical waveguide substrate, wherein on one of two surfaces of said groove portion, a mirror is formed to reflect a light incident from a side of the other surface and make the light be incident on a light-receiving element disposed on the surface of said optical waveguide substrate; said optical communication module further comprising: a tip of an optical waveguide on the optical waveguide substrate provided in a vicinity of the surface of said groove portion at a side from which a light is incident onto said mirror, wherein said mirror reflects a signal light guided by said optical waveguide so as to be incident onto the light-receiving element, and on the surface of said groove portion at the side from which a light is incident onto said mirror, a filter which allows a signal light, having a wavelength of a received signal light incident from said optical waveguide to penetrate and fails to allow a noise light having a wavelength different from the wavelength of said received signal light to penetrate is disposed slantwise with respect to said optical waveguide.