Patent ID: 11870553
Assignee: FUJITSU LIMITED
Field: Telecommunications (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 13:
14. A fiber-optic communication system comprising:
a first fiber-optic communication apparatus;
a second fiber-optic communication apparatus; and
a fiber-optic transmission line connecting between the first fiber-optic communication apparatus and the second fiber-optic communication apparatus,
wherein the first fiber-optic communication apparatus or the second fiber-optic communication apparatus calculates a wavelength dependence of a WDM signal, based on a transmission power spectrum of the WDM signal to be transmitted into the fiber-optic transmission line and a received power spectrum of the WDM signal received from the fiber-optic transmission line, compensates for the wavelength dependence in a unit interval of frequency narrower than a channel bandwidth of the WDM signal, and adjusts an optical power level of the WDM signal in the unit interval of frequency based on the compensated wavelength dependence.