Management information conveying method for wavelength division multiplexing system involves recovering management signals from electrical signal obtained from fraction of optical signal

摘要

Management signal are superimposed on the wavelength division multiplexing (WDM) signals in mutually distinguishable state and transmitted as a common optical signal. A detector (18) converts the tapped fraction of the optical signal into an electrical signal. A receiver (19) recovers the management signals from the electrical signal and transmits the management signals to a management unit (16). Independent claims are included for the following: (1) WDM system; and (2) pluggable WDM wavelength converter.