Patent ID: 11909515
Assignee: FUJITSU LIMITED
Field: Telecommunications (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. An optical transmission system, including:
a transmitting node that transmits wavelength light of an operational path to an optical waveguide; and
a receiving node that receives the wavelength light from the optical waveguide, wherein
the transmitting node includes:
a light source that generates spontaneously emitted light; and
a wavelength selector that generates and outputs dummy wavelength light from the spontaneously emitted light generated by the light source,

the receiving node includes an extractor that extracts spectral data of the dummy wavelength light passed in the optical waveguide, and
the optical transmission system further comprises:
an obtainer that obtains a band state of the operational path from the spectral data of the dummy wavelength light extracted by the extractor.