mB1C Code and Its Performance in an Optical Communication System

This paper describes a new line code which is suitable for a high-speed optical digital transmission system of more than 400 Mbits/s. This line code, named
mB1C
code, is created by means of a complemental pulse which is inserted every
m
bits. This complemental pulse prevents long series of "l"'s or "0"'s. Power spectrum, jitter, and optical transmission characteristics as well as error monitoring performance are described on theoretical analyses and experimental results.