OPTICAL COMMUNICATION EQUIPMENT, AND ELECTRONIC EQUIPMENT USING THE SAME

PROBLEM TO BE SOLVED: To perform feedback from a reception side to a transmission side inexpensively in optical communication equipment which is used in a terminal device of a mobile phone or the like and performs communication between substrates with an optical signal. SOLUTION: Two photoelectric conversion apparatus 21 and 22 are connected with a waveguide film 23, and the waveguide film 23 has electric signal lines 23c1 to 23c3 provided in parallel in a waveguide 23a for transmitting a high frequency optical signal. In the photoelectric conversion apparatus 22 on the reception side, a TIA 35b1 converts a current output of a PD 34b to a voltage output, and an amplifier 35b2 amplifies this voltage output into a differential voltage signal and outputs the differential voltage signal, and a differential amplifier 41 generates a laser power control signal consisting of an analog DC voltage, as a feedback signal, and the feedback signal is fed back to a driver amplifier 35a in the photoelectric conversion apparatus 21 on the reception side through the electric signal line 23c1. Consequently, feedback control can be achieved by an inexpensive configuration without performing complicated modulation or the like. COPYRIGHT: (C)2008,JPO&INPIT