Title:
光伝送装置、光伝送システム及び光通信方法
Document Type and Number:
Japanese Patent JP7156480
Kind Code:
B2
Abstract:
To provide an optical transmission device and a control method thereof that can improve a transmission characteristic.SOLUTION: A node 10 comprises: a multiplexing unit 11 for multiplexing a plurality of sub-carrier signals for performing optical wavelength multiplex communication to a wavelength group signal; an output unit 12 for outputting the multiplexed wavelength group signal to an optical transmission path; a pre-multiplexing level correction unit 13 for correcting a level deviation of the sub-carrier signals before multiplexing on the basis of an optical level of the wavelength group signal at the output unit 12; and a post-multiplexing level correction unit 14 for correcting a level deviation of the wavelength group signal after the multiplexing on the basis of the optical level of the wavelength group signal at the output unit 12.SELECTED DRAWING: Figure 7
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Inventors:
Takeshi Oguma
Yurie Matsuyama
Yurie Matsuyama
Application Number:
JP2021146036A
Publication Date:
October 19, 2022
Filing Date:
September 08, 2021
Export Citation:
Assignee:
NEC
International Classes:
H04B10/294; H04B10/073; H04J14/02
Domestic Patent References:
| JP2001053686A | ||||
| JP2007150636A | ||||
| JP2013106328A | ||||
| JP2013201495A |
Attorney, Agent or Firm:
Ken Ieiri