Title:
OPTICAL AMPLIFICATION DEVICE AND OPTICAL NODE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/234922
Kind Code:
A1
Abstract:
This optical amplification device (100) is for a multi-directional path optical transmission system and is provided with: an optical amplifier group configured from a plurality of optical amplifiers (13); an excitation light source (11); and an optical coupler group provided between the optical amplifier group and the excitation light source (11) and configured from a plurality of optical couplers (12). A linear region is used in amplification in each of the plurality of optical amplifiers (13), and each of the optical couplers (12) is a fixed branching ratio-type optical coupler.
Inventors:
CHIKAMORI SHUN (JP)
NOGUCHI YUITA (JP)
IMANISHI KATSUNORI (JP)
SUZUKI NAOKI (JP)
NOGUCHI YUITA (JP)
IMANISHI KATSUNORI (JP)
SUZUKI NAOKI (JP)
Application Number:
PCT/JP2019/019674
Publication Date:
November 26, 2020
Filing Date:
May 17, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H04B10/291; H01S3/067; H01S3/10; H04J14/02
Domestic Patent References:
| WO2018119521A1 | 2018-07-05 |
Foreign References:
| US20180069370A1 | 2018-03-08 | |||
| JP2012222747A | 2012-11-12 |
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (JP)
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