Patent ID: 7948760

Claim:
A transmission/reception optical module, comprising: an optical transmission subassembly including a light-emitting element; an optical reception subassembly including a light-receiving element; and a circuit board for controlling the optical transmission subassembly and the optical reception subassembly; the circuit board comprising: a rigid region including a first fixation region, to which the optical transmission subassembly is fixed, a second fixation region, to which the optical reception subassembly is fixed; and a circuit board main body; and a flexible region connected with the rigid region, the flexible region being positioned between the second fixation region and the circuit board main body, wherein the first fixation region and the circuit board main body are formed into one member in the rigid region, and the second fixation region and the circuit board main body are connected by the flexible region, a driver for driving the optical transmission subassembly is mounted on the first fixation region, and a control circuit for controlling the optical transmission subassembly and the optical reception subassembly, and a waveform-shaping IC of a transmission/reception combination type for shaping a waveform of an electrical signal input to the optical transmission subassembly and a waveform of an electrical signal output from the optical reception subassembly are mounted on the circuit board main body.