OPTICAL DATA TRANSMISSION DEVICE USING OPTICAL TIME DOMAIN REFLECTROMETRY

摘要

optical transmission signal to generate a laser transmission unit and sending it to the laser modulation signal The optical data transmission device is proposed for the optical access network comprising a drive unit that controls the transmitting unit. The device comprises an optical receiving unit that converts the received optical signal into an electrical measurement signal. For this purpose, the receiving unit includes a photo diode and the electrical amplifier. The optical receiving unit is a laser transmitting unit and a separate. Such that the control unit, the optical transmission signal is modulated depending on the measured signal, and controls the laser transmitting unit. The control unit, measuring a plurality of electrical signals measured during a measurement interval, and determines the average received electrical measurement signals. In addition, the control unit controls the electric amplifier such that the amplifier is turned off during the time interval of the previous electrical measurement interval,.