Optical Transmitter and/or Receiver Assembly Comprising a Planar Optical Circuit

The invention relates to an optical transmitter and/or receiver assembly comprising at least one transmitter component ( 2 ) and/or at least one receiver component ( 3, 4 ), in addition to a planar optical circuit ( 5 ) with at least one integrated waveguide ( 51 ). According to the invention, light from the transmitter element ( 1 ) is coupled into a waveguide (51) of the planar optical circuit ( 5 ) and/or light from the waveguide ( 51 ) of the planar optical circuit ( 5 ) is uncoupled and guided onto the receiver component ( 3, 4 ). The assembly is provided with a lens ( 14, 15 ) for optically coupling the waveguide(s) ( 51 ) of the planar optical circuit ( 5 ) to a fibre-optic that can he fixed to the transmitter and/or receiver assembly ( 1 ), said lens ( 14, 15 ) being positioned on the planar optical circuit ( 5 ).