Optical Transmission System Using Optical Receiver Equipped with Electrical Duobinary Encoder for On-Off Keying Signal

摘要

The electrical duobinary encoder is an optical transmission system using the receiver of the on-off modulated light signal embedded is provided. In the optical transmission system, an electrical duobinary encoder using a receiver on-off modulation of the optical signal embedded, a light transmitter for the direct modulation using a laser after the pre-coding a binary (binary) electrical signal; And an on-off modulation (on-off keying) detecting the optical signal to an optical signal by a photodetector and converted into an electric signal, and duo to the electrical signal binary (duobinary) duobinary electrical signal through the encoder transmitted from the optical transmitter conversion, and can determine by using the device comprise a light receiver for determining the beat signal for the electric signal to the duo-binary.