FWM Light suppressing system

摘要

Disclosed is a FWM light suppressing system for optical wavelength division multiplexing transmission using a transmission line optical fiber, comprising: means for suppressing four-wave mixing (FWM) light to be generated in the transmission line optical fiber, the FWM light suppressing means being disposed at a repeating part of the transmission line optical fiber; wherein main signals are transmitted through the transmission line optical fiber at non-uniform frequency intervals.