Title:
モニタ装置、モニタ方法、及び光伝送システム
Document Type and Number:
Japanese Patent JP7294519
Kind Code:
B2
Abstract:
Provided are a monitoring device, a monitoring method, and an optical transmission system which are adapted for an increase in the number of cores of a multi-core optical fiber transmission path and suitable for crosstalk monitoring. The monitoring device monitors a multi-core optical fiber transmission path having a plurality of use cores and at least one or more non-use cores, and comprises: an applying means for applying, at a start point of the multi-core optical fiber transmission path, dithering to signal light propagating in the use cores; a monitoring means for monitoring the power of the non-use cores at an input side of a relay in the multi-core optical fiber transmission path; and a separating means for separating a monitoring result from the monitoring means into power components from the plurality of use cores.
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Inventors:
Keiichi Matsumoto
Eimi Noguchi
Rutayandie de Gaboli Emmanuel
Eimi Noguchi
Rutayandie de Gaboli Emmanuel
Application Number:
JP2022503270A
Publication Date:
June 20, 2023
Filing Date:
February 15, 2021
Export Citation:
Assignee:
NEC
International Classes:
H04B10/077; G02B6/02; H04B10/291; H04J14/00
Domestic Patent References:
| JP2016225899A | ||||
| JP201722638A |
Foreign References:
| WO2017090616A1 | ||||
| WO2018207915A1 | ||||
| WO2013179604A1 |
Attorney, Agent or Firm:
Masahiko desk
Keiji Kitajima
Keiji Kitajima