JPWO2021111699A5 - - Google Patents
Download PDFInfo
- Publication number
- JPWO2021111699A5 JPWO2021111699A5 JP2021562459A JP2021562459A JPWO2021111699A5 JP WO2021111699 A5 JPWO2021111699 A5 JP WO2021111699A5 JP 2021562459 A JP2021562459 A JP 2021562459A JP 2021562459 A JP2021562459 A JP 2021562459A JP WO2021111699 A5 JPWO2021111699 A5 JP WO2021111699A5
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- optical
- cable
- light
- core wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000013307 optical fiber Substances 0.000 claims description 90
- 230000003287 optical effect Effects 0.000 claims description 75
- 239000000523 sample Substances 0.000 claims description 16
- 239000000835 fiber Substances 0.000 claims description 14
- 230000003321 amplification Effects 0.000 claims description 13
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000007613 environmental effect Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000001902 propagating effect Effects 0.000 claims description 4
- 230000002238 attenuated effect Effects 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 101710112083 Para-Rep C1 Proteins 0.000 description 1
- 102100022881 Rab proteins geranylgeranyltransferase component A 1 Human genes 0.000 description 1
- 101710119887 Trans-acting factor B Proteins 0.000 description 1
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019219922 | 2019-12-04 | ||
| JP2019219922 | 2019-12-04 | ||
| PCT/JP2020/034644 WO2021111699A1 (ja) | 2019-12-04 | 2020-09-14 | 光ファイバセンシングシステム、中継装置及びセンシング方法 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPWO2021111699A1 JPWO2021111699A1 (https=) | 2021-06-10 |
| JPWO2021111699A5 true JPWO2021111699A5 (https=) | 2022-07-29 |
| JP7424391B2 JP7424391B2 (ja) | 2024-01-30 |
Family
ID=76221892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021562459A Active JP7424391B2 (ja) | 2019-12-04 | 2020-09-14 | 光ファイバセンシングシステム、中継装置及びセンシング方法 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20220399938A1 (https=) |
| JP (1) | JP7424391B2 (https=) |
| WO (1) | WO2021111699A1 (https=) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021111691A1 (ja) * | 2019-12-03 | 2021-06-10 | 日本電気株式会社 | 光ファイバセンシングシステム、測定装置及び測定方法 |
| EP4677776A1 (en) * | 2023-03-10 | 2026-01-14 | BAE SYSTEMS plc | Apparatus and method |
| WO2025010267A1 (en) * | 2023-07-05 | 2025-01-09 | Subcom, Llc | Monitoring in distributed acoustic sensing systems |
| JP2026043660A (ja) * | 2024-08-29 | 2026-03-12 | 株式会社オーシーシー | 遠隔励起を用いた光増幅中継システム |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6161038A (ja) * | 1984-08-31 | 1986-03-28 | Nippon Telegr & Teleph Corp <Ntt> | 通信用ケ−ブル保守方式 |
| JP3100386B2 (ja) * | 1990-06-19 | 2000-10-16 | 住友電気工業株式会社 | 光通信システム |
| JPH04285835A (ja) * | 1991-03-14 | 1992-10-09 | Fujikura Ltd | 光ファイバ通信線路の特性検出方法または特性検出装置 |
| JP2782124B2 (ja) * | 1991-07-05 | 1998-07-30 | 株式会社フジクラ | 光ファイバケーブル |
| JPH0546144U (ja) * | 1991-11-14 | 1993-06-18 | 日立電線株式会社 | 光通信システム |
| JPH05241030A (ja) * | 1992-02-27 | 1993-09-21 | Sumitomo Electric Ind Ltd | 分布型光ファイバセンサ |
| JPH08256106A (ja) * | 1995-03-17 | 1996-10-01 | Fujitsu Ltd | 光増幅海底伝送システムの分散補償装置 |
| JP3016355B2 (ja) * | 1996-02-05 | 2000-03-06 | 日本電気株式会社 | 通信・観測融合海底ケーブルシステム |
| JPH09210847A (ja) * | 1996-02-06 | 1997-08-15 | Furukawa Electric Co Ltd:The | 光伝送システムにおける光中継器の監視方法とそれに用いられる光中継器 |
| AU747525B2 (en) * | 1998-12-18 | 2002-05-16 | Future Fibre Technologies Pty Ltd | Apparatus and method for monitoring a structure using a counter-propagating signal method for locating events |
| JP2001345759A (ja) * | 2000-06-02 | 2001-12-14 | Mitsubishi Electric Corp | 光中継装置 |
| US8634713B2 (en) * | 2008-08-29 | 2014-01-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Fibre monitoring in optical networks |
| CN101995320B (zh) * | 2009-08-27 | 2012-03-21 | 华为海洋网络有限公司 | 检测水下设备故障的方法、装置及设备 |
| US8328431B2 (en) * | 2010-02-01 | 2012-12-11 | Tyco Electronics Subsea Communications Llc | Coupling multiple conductor undersea optical cables to an undersea device with an isolated bypass conductive path across the undersea device |
| JP5298043B2 (ja) * | 2010-02-15 | 2013-09-25 | 日本電信電話株式会社 | 光ケーブル敷設環境測定方法、光ケーブル敷設環境測定装置及び光ケーブル敷設環境測定システム |
| US9410866B2 (en) * | 2012-08-29 | 2016-08-09 | Telefonaktiebolaget L M Ericsson (Publ) | Device for monitoring an optical fibre |
| EP2819321A1 (en) * | 2013-06-27 | 2014-12-31 | Alcatel Lucent | Packet optical add drop multiplexing node for an optical ring network |
| GB2535875A (en) * | 2013-10-17 | 2016-08-31 | Halliburton Energy Services Inc | Distributed sensing in an optical fiber network |
| JP2015200728A (ja) * | 2014-04-07 | 2015-11-12 | 富士通株式会社 | 光分岐器、光増幅装置及び光増幅方法 |
| GB201421470D0 (en) * | 2014-12-03 | 2015-01-14 | Silixa Ltd | Range extension for optical fiber sensing systems |
| CN107925475A (zh) * | 2015-08-03 | 2018-04-17 | 日本电气株式会社 | 光分插设备和光分插方法 |
| JP2017194306A (ja) * | 2016-04-19 | 2017-10-26 | 三菱重工業株式会社 | 光ファイバセンシングシステム及びライザー管 |
| GB201610996D0 (en) * | 2016-06-23 | 2016-08-10 | Optasense Holdings Ltd | Fibre optic sensing |
| JP7115182B2 (ja) * | 2018-09-25 | 2022-08-09 | 日本電信電話株式会社 | 光コネクタ用フェルール、スリーブ及びフェルール部材製造方法 |
-
2020
- 2020-09-14 JP JP2021562459A patent/JP7424391B2/ja active Active
- 2020-09-14 WO PCT/JP2020/034644 patent/WO2021111699A1/ja not_active Ceased
- 2020-09-14 US US17/778,907 patent/US20220399938A1/en not_active Abandoned
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPWO2021111699A5 (https=) | ||
| US20070154212A1 (en) | Method and apparatus for testing transmission lines normally propagating optical signals | |
| CN109075857B (zh) | 信号回送回路和信号回送方法 | |
| JPH06103857B2 (ja) | 光ファイバシステムの検知装置とその方法 | |
| US11101885B2 (en) | Supervisory signal paths for an optical transport system | |
| JP7424391B2 (ja) | 光ファイバセンシングシステム、中継装置及びセンシング方法 | |
| US20090257747A1 (en) | Testing a fiber link in a communication system without interrupting service | |
| US10567081B2 (en) | Transmission system and transmission method | |
| EP3614581A1 (en) | Bidirectional optical transmission system and bidirectional optical transmission method | |
| WO1999049601A1 (en) | Wdm transmission repeater, wdm transmission system and wdm transmission method | |
| JP6455296B2 (ja) | 光伝送装置 | |
| JPWO2021111691A5 (https=) | ||
| JP2009088852A (ja) | 多重中継光伝送装置 | |
| US20150333822A1 (en) | Network Alarm System Utilizing a Single Sensing Fiber | |
| JP7778276B2 (ja) | 光通信システム | |
| JP7721049B1 (ja) | 光通信システム | |
| JP4018075B2 (ja) | 光ファイバ故障切り分け方法 | |
| CN119011022B (zh) | 用于深海通感融合的光中继器结构、深海海缆系统 | |
| KR100628838B1 (ko) | 광신호검출장치 | |
| JP3641407B2 (ja) | 光伝送線路試験方法 | |
| KR101377266B1 (ko) | 광케이블 접속분기함 및 광선로 감시 시스템 | |
| JPH1022919A (ja) | 光分岐装置 | |
| JPH11196047A (ja) | 光線路監視システム | |
| JP2010206598A (ja) | 一芯双方向光伝送システムおよび一芯双方向用光増幅器並びに一芯双方向光伝送方法 | |
| JP3016355B2 (ja) | 通信・観測融合海底ケーブルシステム |