Patent ID: 7512165

Claim:
A photoelectric conversion module, comprising: a heat sink; an electric circuit comprising an optical element to transmit an optical signal, the optical element being provided on the heat sink; a stem to fix the optical element; a cap to cover the optical element; a plurality of leads to apply an electric signal to the optical element, said plurality of leads comprising a predetermined lead having an end which comprises a flat section disposed in a package formed of the stem and the cap; wherein said electric circuit comprises an electric circuit component which includes a terminal resistor for impedance-matching the optical element to a component outside the package, wherein one of said terminal resistor and a circuit pattern including said terminal resistor is formed on said flat section and includes an end which is connected by a wire to the optical element and another end which is connected to the predetermined lead, wherein the package is filled with an inert gas, and wherein the optical element and the electric circuit component are separated by a gap.