Title:
SUBMARINE NETWORK DEVICE AND SUBMARINE CABLE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/177101
Kind Code:
A1
Abstract:
Provided are a submarine network device and a submarine cable system, wherein same are capable of timely and accurately detection of a fault of a submarine optical repeater. The device comprises a first optical fiber and a second optical fiber; at least one first pump laser for providing pump light to a first optical amplification unit located in the first optical fiber; the first optical amplification unit for amplifying a first detection optical signal sent from a first station to a second station and outputting same; a first optical fiber coupler, located in the first optical fiber and used for receiving a first reflected optical signal obtained, after being subjected to a Rayleigh backscattering effect, from the first detection optical signal, and sending part of the first reflected optical signal to a second optical fiber coupler located in the second optical fiber; at least one second pump laser for providing pump light to a second optical amplification unit; the second optical amplification unit for amplifying a second data optical signal sent from the second station to the first station and outputting same; and the second optical fiber coupler for receiving a part of the first reflected optical signal output by the first optical fiber coupler.
Inventors:
WANG YAN (CN)
XU CHANGWU (CN)
MA LIPING (CN)
YANG LI (CN)
XU CHANGWU (CN)
MA LIPING (CN)
YANG LI (CN)
Application Number:
PCT/CN2019/077198
Publication Date:
September 10, 2020
Filing Date:
March 06, 2019
Export Citation:
Assignee:
HUAWEI MARINE NETWORKS CO LTD (CN)
International Classes:
H01S3/091; H04B10/071; H04B10/29
Foreign References:
| CN101729151A | 2010-06-09 | |||
| CN101453273A | 2009-06-10 | |||
| EP1372272A2 | 2003-12-17 | |||
| CN105933068A | 2016-09-07 | |||
| US20150171958A1 | 2015-06-18 |
Other References:
See also references of EP 3754867A4
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