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Title:
SUBMARINE OPTICAL BRANCHING DEVICE, SUBMARINE OPTICAL CABLE SYSTEM, SWITCHING METHOD, NON-TRANSITORY COMPUTER-READABLE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2020/194842
Kind Code:
A1
Abstract:
In this submarine optical cable system in which terminal stations are connected by a plurality of optical fiber transmission lines, a designated optical fiber transmission line is connected to an optical fiber transmission line for branching, without increasing the number of components between a submarine optical branching device and a branch station as much as possible. The submarine optical branching device 1 comprises a control unit (1a) and a switching unit (1b). The switching unit (1b) is connected to a plurality of first optical fiber transmission lines connected to a first terminal station, a plurality of second optical fiber transmission lines connected to a second terminal station, and a third optical fiber transmission line connected to a third terminal station, and switches the transmission route of a wavelength-multiplexed optical signal. The control unit (1a) controls the switching of the transmission route by the switching unit (1b). The switching unit (1b) has a function of respectively connecting the plurality of first optical fiber transmission lines to the plurality of second optical fiber transmission lines. The switching unit (1b) further has a function of switching such that any one of the plurality of first optical fiber transmission lines is connected to the third optical fiber transmission line.

Inventors:
ABE RYOTA (JP)
Application Number:
PCT/JP2019/044251
Publication Date:
October 01, 2020
Filing Date:
November 12, 2019
Export Citation:
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Assignee:
NEC CORP (JP)
International Classes:
H04J14/02; H04B10/27; H04B10/291
Domestic Patent References:
WO2016152115A12016-09-29
WO2012132688A12012-10-04
Foreign References:
JP2017157985A2017-09-07
JPH10150409A1998-06-02
US20160301467A12016-10-13
JPH09289488A1997-11-04
JPH09289488A1997-11-04
JPH10150409A1998-06-02
JP2019061901A2019-04-18
Other References:
See also references of EP 3952149A4
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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