Optical coupler module having optical waveguide structure

An optical coupler module adapted to be applied on a print circuit board for converting and transmitting a first optical signal, the optical coupler module comprising:

• a semiconductor substrate disposed on the print circuit board;
• a first reflecting trench structure formed on the semiconductor substrate and defined by two surfaces wherein a first one of the surface is a slant surface;
• a first reflector formed on the slant surface of the first reflecting trench structure;
• a first strip trench structure formed on the semiconductor substrate, a first end of the first strip trench structure running through a second one of the surfaces of the first reflecting trench structure to connect with the first reflecting trench structure;
• a thin film disposed on the semiconductor substrate, the first reflecting trench structure and the first strip trench structure;
• a first light detection unit disposed on the semiconductor substrate and the position of the first light detection unit corresponding to the first reflector, for converting the first optical signal into a first corresponding electrical signal;
• a first optical waveguide structure formed in the first strip trench structure and extending to the first reflector;
• and
• a coupling unit disposed on the print circuit board and surrounding portions of surfaces of the semiconductor substrate for coupling the optical coupler module to an adapter;
• wherein the first optical signal is inputted and directed into the first optical waveguide structure, transmitted along the first optical waveguide structure, and reflected by the first reflector to reach the first light detection unit in sequence.

An optical coupler module adapted to be applied on a print circuit board for converting and transmit at least one electrical signal or at least one optical signal, the optical coupler module comprising:

• a semiconductor substrate disposed on the print circuit board;
• at least one strip trench structure formed on the semiconductor substrate, and having a slant surface at one side thereof;
• a reflector formed on the slant surface of the strip trench structure;
• a thin film disposed on the semiconductor substrate and the strip trench structure;
• at least one signal conversion unit disposed on the semiconductor substrate and the position of the signal conversion unit corresponding to the reflector, for converting the electrical signal into a corresponding optical signal or converting the optical signal into a corresponding electrical signal;
• at least one optical waveguide structure formed on the thin film in the strip trench structure;
• and
• a coupling unit disposed on the print circuit board and surrounding portions of surfaces of the semiconductor substrate for coupling the optical coupler module to an adapter;
• wherein the corresponding optical signal provided by the signal conversion unit is directed into the optical waveguide structure, reflected by the reflector, and transmitted along the optical waveguide structure to be outputted in sequence;
• or the optical signal is inputted and directed into the optical waveguide structure, transmitted along the optical waveguide structure, and reflected by the reflector to reach the signal conversion unit in sequence.