Wavelength-division multiplexed optical transmission system

Abstract

A wavelength-division multiplexed optical transmission system to keep the correlation of data patterns among wavelength channels to a low level, assuring a stable transmitting quality. The wavelength-division multiplexed optical transmission system has any of a frame phase changing circuit for mutually differing transmitting frame phases between at least two or more wavelength channels, a scrambling circuit using a data scrambler based on a pseudo random pattern for mutually differing scrambling patterns between two or more wavelength channels, or a dummy data generating circuit for mutually differing invalid data patterns between at least two or more wavelength channels in a wavelength channel group transmitted through the same optical fiber transmitting line when transmitting meaningless data.

Dependencies are inferred from the claim text.