Patent ID: 6408121
Filing Date: 2002-06-18
Classification: G02B

Abstract:
An optical communication module used for transmitting and receiving optical signals, comprising:an optical communication substrate with divided waveguides configured as an X-shape in a plan view, each divided waveguide being divided by a blind slit at a crossing of the X-shape; an optical filter, inserted into the blind slit, that reflects a greater part of a transmitted light signal; a light-emitting device that produces the transmitted light signal and is optically coupled to the optical filter, where the greater part of the transmitted light signal is transmitted to an optical fiber by a divided waveguide and a lesser part of the transmitted light signal is transmitted to a light-receiving device for monitoring outputted light power by another divided waveguide; and a light-receiving device for receiving optical signals from the optical fiber by a divided waveguide.