Optical transceiver and production method thereof

A production method for an optical transceiver, the method comprising:

• first forming 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 the optical signal and converts the optical signal into an electric signal;
• second forming a circuit board including a drive circuit and a signal processing circuit of the optical transmission/reception device;
• third forming a first flexible printed circuit that electrically connects the light emitting unit and the circuit board;
• fourth forming a second flexible printed circuit that electrically connects the light receiving unit and the circuit board;
• fifth forming a chassis including a separation wall grounded to the chassis;
• folding a part set between the chassis and the separation wall in the second flexible printed circuit such that a board front surface is an inner side;
• and
• inserting a folded part of the second flexible printed circuit between the chassis and the separation wall and containing the second flexible printed circuit in the chassis such that the separation wall is set between the first flexible printed circuit and the second flexible printed circuit.