Patent ID: 8678674

Claim:
An optical transceiver comprising: an optical transmission/reception device including a light emitting unit that converts an electric signal into an optical signal and transmits the optical signal, and a light receiving unit that receives a second optical signal and converts the second optical signal into an electric signal; a circuit board including a drive circuit and a signal processing circuit of the optical transmission/reception device; a first flexible printed circuit that electrically connects the light emitting unit and the circuit board; a second flexible printed circuit that electrically connects the light receiving unit and the circuit board; and a separation wall that is formed between the first flexible printed circuit and the second flexible printed circuit and grounded to a chassis of the optical transceiver, wherein the second flexible printed circuit is folded and set between the chassis and the separation wall such that a board front surface is an inner side, and a wiring pattern is formed on the board front surface and a signal ground pattern is formed on a rear surface.