OPTICAL RECEIVER AND OPTICAL TRANSMISSION SYSTEM

摘要

The present invention includes an optical band-limiting filter (10) which imposes a band-limitation on an input optical signal, an opto-electric converter (11) which converts the optical signal output from the optical band-limiting filter (10) into an electric signal, a lowpass filter (12) which imposes the band-limitation on the electric signal output from the opto-electric converter (11), an amplifier (13) which amplifies the output signal of the lowpass filter (12), and an electric equalizer (14) which performs an equalization processing on a waveform of the electric signal output from the opto-electric converter (13) are provided, and a full width at half maximum of the optical band-limiting filter (10) is set to be equivalent to or smaller than a bit rate frequency of the optical signal.