Title:
MONITORING OPTICAL SIGNAL ARRIVAL ADJUSTMENT DEVICE, OPTICAL COMMUNICATION TRANSMISSION PATH, OPTICAL COMMUNICATION SYSTEM, AND OPTICAL COMMUNICATION TRANSMISSION PATH MONITORING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/059345
Kind Code:
A1
Abstract:
To enable simultaneous monitoring and facilitate the standardization of parts in an optical communication system, this monitoring optical signal arrival adjustment device comprises: a first monitoring optical signal arrival adjustment unit which allows a first monitoring optical signal transmitted to a first position on a first optical transmission path to reach the first position or a second position on a second optical transmission path, and does not allow the first monitoring optical signal to reach a third position on a third optical transmission path; a second monitoring optical signal arrival adjustment unit which allows a second monitoring optical signal transmitted to the second position to reach the first position or the second position, and does not allow the second monitoring optical signal to reach the third position; and a third monitoring optical signal arrival adjustment unit which allows a third monitoring optical signal transmitted to the third position to reach the third position, and does not allow the third monitoring optical signal to reach the first position or the second position.
Inventors:
ABE RYOTA (JP)
Application Number:
PCT/JP2021/027330
Publication Date:
March 24, 2022
Filing Date:
July 21, 2021
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04B10/077; H04B10/291
Domestic Patent References:
| WO2019087520A1 | 2019-05-09 |
Foreign References:
| JPH10256995A | 1998-09-25 | |||
| JP2005136602A | 2005-05-26 | |||
| JPH10262030A | 1998-09-29 |
Attorney, Agent or Firm:
KITAJIMA Hiroshi et al. (JP)
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