Bit-rate-independent optical receiver

摘要

Disclosed is a bit-rate-independent optical receiver capable of easily achieving a centralization and modulization thereof. The bit-rate-independent optical receiver includes a bit rate sensing unit for outputting a photosensitive signal optoelectrically converted from an input optical signal while outputting a bit rate sensing signal having a voltage level indicative of a bit rate of the photosensitive signal, a variation sensing unit for outputting a variation sensing signal when a variation in the bit rate occurs, a temperature sensing unit for sensing an internal temperature of the bit rate sensing unit, and outputting a temperature sensing signal indicative of the sensed internal temperature, a signal reproducing unit for reproducing data and clocks of the photosensitive signal based on a predetermined reference clock while, in response to a reception of a clock correction signal, reproducing the data and clocks of the photosensitive signal based on a reference clock corresponding to the clock correction signal, and a control unit for calculating the bit rate of the photosensitive signal based on the voltage level of the bit rate sensing signal, in response to a reception of the variation sensing signal, compensating the calculated bit rate for errors resulting from a variation in temperature, based on the temperature indicated by the temperature sensing signal, and outputting, to the signal reproducing unit, a clock correction signal indicative of the temperature-compensated bit rate.