Optical module

An optical module comprising:

• a first circuit board in which a first edge connector is formed and a connector socket is mounted substantially in parallel to the first edge connector;
• and
• an optical transceiver module that is electrically connected to the first circuit board via the connector socket, wherein
• the optical transceiver module includes:
• a second circuit board on which an electrical-to-optical converter, a drive circuit that drives the electrical-to-optical converter, an optical-to-electrical converter, and a current-to-voltage conversion circuit that converts an output current of the optical-to-electrical converter into a voltage signal are mounted;
• and
• an optical waveguide that guides an optical signal generated by the electrical-to-optical converter to an output end of the optical transceiver module, and that guides an optical signal input to the optical transceiver module to the optical-to-electrical converter, and wherein
• the second circuit board has a second edge connector corresponding to the connector socket mounted on the first circuit board,
• the electrical-to-optical converter, the drive circuit, the optical-to-electrical converter, and the current-to-voltage conversion circuit are disposed in the center area of the second circuit board,
• signal lines of the drive circuit are pulled out from the drive circuit in a first direction, and are formed to reach corresponding terminals of the second edge connector, and
• signal lines of the current-to-voltage conversion circuit are pulled out from the current-to-voltage conversion circuit in a second direction that is substantially opposite to the first direction, and are formed so as to reach corresponding terminals of the second edge connector.