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OPTICAL RELAY DEVICE, CONTROL METHOD, AND OPTICAL TRANSMISSION SYSTEM

  • US 20180191441A1
  • Filed: 12/21/2015
  • Published: 07/05/2018
  • Est. Priority Date: 12/21/2015
  • Status: Active Grant
First Claim
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1. An optical relay device comprising:

  • a wavelength selective switcher capable of performing path switching in wavelength units and optical level adjustment for each of wavelengths and incapable of receiving new setting during a setting change of a wavelength and a band transmitted through ports, and transmittance; and

    a controller to instruct, on the basis of a fluctuation amount of an optical level for each of the wavelengths of an optical signal output from the wavelength selective switch and setting information indicating, for each of the wavelengths, whether optical level adjustment for the wavelengths of the optical signal is being carried out in another optical relay device, the wavelength selective switcher to perform a setting change of an optical level adjustment amount of the optical signal, wherein the controller excludes a wavelength, the optical level adjustment for which is being carried out by another optical relay device, from a target of the optical level adjustment.

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