Title:
OPTICAL TRANSMISSION DEVICE AND OPTICAL TRANSMISSION METHOD
Document Type and Number:
WIPO Patent Application WO/2024/013838
Kind Code:
A1
Abstract:
This optical transmission device transmits an optical signal between a communication terminal device and a network without converting the optical signal into an electric signal. The optical transmission device comprises: a plurality of splitter/combiners for the input/output of optical signals between the optical transmission device and the communication terminal device connected thereto; a plurality of wavelength demultiplexers for the input/output of optical signals between the optical transmission device and a network connected thereto; an uplink signal splitter that outputs uplink optical signals output from the splitter/combiners to an electric processing unit that performs a predetermined electric process on the optical signals; and an uplink signal combiner that outputs the uplink optical signals that have been subjected to the electric process by the electric processing unit to predetermined ones of the wavelength demultiplexers.
Inventors:
KANEKO SHIN (JP)
YOSHIDA TOMOAKI (JP)
SHIBATA NAOTAKA (JP)
KANAI TAKUYA (JP)
KANI JUNICHI (JP)
YOSHIDA TOMOAKI (JP)
SHIBATA NAOTAKA (JP)
KANAI TAKUYA (JP)
KANI JUNICHI (JP)
Application Number:
PCT/JP2022/027359
Publication Date:
January 18, 2024
Filing Date:
July 12, 2022
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04J14/02
Foreign References:
| JP2016225850A | 2016-12-28 | |||
| JP2012004842A | 2012-01-05 | |||
| JP2020155924A | 2020-09-24 | |||
| US20080181605A1 | 2008-07-31 |
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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