Title:
OPTICAL COMMUNICATION DEVICE, OPTICAL COMMUNICATION SYSTEM, AND OPTICAL COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/091392
Kind Code:
A1
Abstract:
This optical communication device comprises: an optical switch that outputs an optical signal input from one transmission path among a plurality of transmission paths to another transmission path among the plurality of transmission paths; a monitoring unit that relays the optical signal on the transmission path on the side to which the optical signal is output from the optical switch; a blocking unit that blocks the transmission of the optical signal output from the monitoring unit; a wavelength control unit that allocates a wavelength, a time, a polarized wave, a mode, a symbol, a frequency, a core, a core wire, or a wavelength etc. which is a combination thereof, to an optical signal of a subscriber device, via the monitoring unit; and an optical switch control unit that controls the optical switch such that an optical signal input from the transmission path to the optical switch is output to the other transmission path, and that cancels the blocking by the blocking unit.
Inventors:
YOSHINO MANABU (JP)
Application Number:
PCT/JP2020/040988
Publication Date:
May 05, 2022
Filing Date:
October 30, 2020
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04B10/291
Foreign References:
| JP2011071951A | 2011-04-07 | |||
| JP2011045029A | 2011-03-03 | |||
| US20090080892A1 | 2009-03-26 | |||
| JP2008042525A | 2008-02-21 | |||
| JP2014143502A | 2014-08-07 |
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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