Title:
SEABED BRANCHING DEVICE, OPTICAL SEABED CABLE SYSTEM, AND OPTICAL COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/188462
Kind Code:
A1
Abstract:
In order to achieve a seabed optical transmission system that uses a plurality of wavelength bands, this seabed branching device is characterized by comprising: a first demultiplexing unit that demultiplexes a wavelength multiplexed optical signal, which was input from a first terminal, into a first wavelength multiplexed optical signal and a second wavelength multiplexed optical signal; an optical add/drop unit that outputs at least a third wavelength multiplexed optical signal included in the first wavelength multiplexed optical signal to a second terminal station, and outputs at least a fifth wavelength multiplexed optical signal by multiplexing a fourth wavelength multiplexed optical signal included in the first wavelength multiplexed optical signal and a wavelength multiplexed optical signal input from the second terminal station; and a first multiplexing unit that multiplexes the second wavelength multiplexed optical signal and the fifth wavelength multiplexed optical signal, which was input from the optical add/drop unit, and outputs the result to a third terminal station.
Inventors:
ABE RYOTA (JP)
Application Number:
PCT/JP2019/011044
Publication Date:
October 03, 2019
Filing Date:
March 18, 2019
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04B10/291; H04B10/075; H04J14/02
Domestic Patent References:
| WO2006035520A1 | 2006-04-06 | |||
| WO2016017181A1 | 2016-02-04 | |||
| WO2012132688A1 | 2012-10-04 |
Foreign References:
| JP2010226167A | 2010-10-07 | |||
| JP2006191212A | 2006-07-20 | |||
| JP2006262385A | 2006-09-28 | |||
| JP2010283446A | 2010-12-16 | |||
| JP2018057359A | 2018-04-12 |
Attorney, Agent or Firm:
SHIMOSAKA Naoki (JP)
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