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

Claim 12:
13. 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 compensates for a power spectrum of a WDM signal transmitted from the first fiber-optic communication apparatus and received at the second fiber-optic communication apparatus through the fiber-optic transmission line, in a unit interval of frequency narrower than a channel bandwidth of the WDM signal, and controls an optical power level of the WDM signal in the unit interval of frequency based on the compensated power spectrum.