Patent ID: 8463136

Claim:
A burst mode optical repeater comprising: an optical reception unit receiving an attenuated optical signal which is transmitted upstream from an optical network unit; an optical transmission unit transmitting the optical signal, which is received by the optical reception unit, to an optical line terminal; and a delay control unit generating a burst enable signal based on a strength of the optical signal received by the optical reception unit and controlling an optical signal, which is transmitted from the optical transmission unit, to have burst characteristics by using the burst enable signal, wherein the optical reception unit converts the received optical signal into an electrical signal and outputs the electrical signal to the optical transmission unit, and measures the strength of the received optical signal and outputs the measured strength to the delay control unit, wherein the optical reception unit comprises an optical detection unit detecting an attenuated optical signal, which is transmitted upstream using a time division multiplexing access (TDMA) method, and outputting the detected optical signal as an electric current component, an amplplification unit amplifying an electrical signal which is represented as the electric current component output from the optical detection unit, to a predetermined voltage level and outputting the amplified electrical signal and a current sensing unit sensing a current of the optical signal detected by the optical detection unit.