optical coupler for integrated circuits has optical waveguide

The invention relates to an integrated circuit comprising a semiconductor layer (3) formed with an insulating interface (2) over a substrate (1), comprising an optical waveguide consisting of a strip (5 ) of the semiconductor layer, comprising a lateral coupler light introducing, said coupler comprising a strip of insulating material (6) having a thickness greater than the diameter of an incident laser beam, covering the semiconductor strip, structure network (11) being formed in the semiconductor band orthogonally to the light propagation direction at the interface with the web of insulating material.