JPWO2021111691A5 - - Google Patents
Download PDFInfo
- Publication number
- JPWO2021111691A5 JPWO2021111691A5 JP2021562457A JP2021562457A JPWO2021111691A5 JP WO2021111691 A5 JPWO2021111691 A5 JP WO2021111691A5 JP 2021562457 A JP2021562457 A JP 2021562457A JP 2021562457 A JP2021562457 A JP 2021562457A JP WO2021111691 A5 JPWO2021111691 A5 JP WO2021111691A5
- Authority
- JP
- Japan
- Prior art keywords
- sensing
- sensing device
- optical fiber
- optical
- communication cable
- 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 37
- 238000004891 communication Methods 0.000 claims description 26
- 230000003287 optical effect Effects 0.000 claims description 19
- 239000000523 sample Substances 0.000 claims description 16
- 230000007613 environmental effect Effects 0.000 claims description 12
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 2
- 230000003321 amplification Effects 0.000 claims 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims 4
- 230000000644 propagated effect Effects 0.000 claims 2
- 238000000691 measurement method Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019218774 | 2019-12-03 | ||
| JP2019218774 | 2019-12-03 | ||
| PCT/JP2020/033811 WO2021111691A1 (ja) | 2019-12-03 | 2020-09-07 | 光ファイバセンシングシステム、測定装置及び測定方法 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPWO2021111691A1 JPWO2021111691A1 (https=) | 2021-06-10 |
| JPWO2021111691A5 true JPWO2021111691A5 (https=) | 2022-07-27 |
| JP7347538B2 JP7347538B2 (ja) | 2023-09-20 |
Family
ID=76221860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021562457A Active JP7347538B2 (ja) | 2019-12-03 | 2020-09-07 | 光ファイバセンシングシステム、測定装置及び測定方法 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US12298177B2 (https=) |
| JP (1) | JP7347538B2 (https=) |
| WO (1) | WO2021111691A1 (https=) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025010267A1 (en) * | 2023-07-05 | 2025-01-09 | Subcom, Llc | Monitoring in distributed acoustic sensing systems |
| US20250130096A1 (en) * | 2023-10-23 | 2025-04-24 | Nokia Solutions And Networks Oy | Bidirectional Optical Communication Fiber Sensing Control Device |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59148835A (ja) | 1983-02-15 | 1984-08-25 | Hitachi Ltd | 光フアイバ式物理量計測方法 |
| JPH04264699A (ja) | 1991-02-19 | 1992-09-21 | Hitachi Cable Ltd | 遠隔装置間の同期方法 |
| JPH08307348A (ja) * | 1995-05-08 | 1996-11-22 | Sumitomo Electric Ind Ltd | 光伝送装置 |
| JP2814976B2 (ja) | 1996-01-31 | 1998-10-27 | 日本電気株式会社 | 海底観測システム |
| JP3358177B2 (ja) | 2000-03-31 | 2002-12-16 | 独立行政法人防災科学技術研究所 | 光学式測距装置 |
| DE60310363T2 (de) * | 2003-03-03 | 2007-04-12 | Alcatel | Raman Faserlaser mit mehrwellenlängiger, stabiler, kleiner Ausgangsleistung für Anwendungen als Seed-Laser |
| JP4284115B2 (ja) | 2003-03-26 | 2009-06-24 | 京セラ株式会社 | Ｆｂｇセンシング装置 |
| JP2006292566A (ja) | 2005-04-12 | 2006-10-26 | Central Res Inst Of Electric Power Ind | 気温分布測定方法および気温分布測定システム |
| JP5294266B2 (ja) | 2009-03-31 | 2013-09-18 | 株式会社オーシーシー | 海底観測システム |
| 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 |
| US8924158B2 (en) | 2010-08-09 | 2014-12-30 | Schlumberger Technology Corporation | Seismic acquisition system including a distributed sensor having an optical fiber |
| JP6160179B2 (ja) | 2013-03-29 | 2017-07-12 | 日本電気株式会社 | 海底光ケーブルシステム、監視情報集約型海底機器、システム監視方法、及びその監視用プログラム |
| GB2535875A (en) * | 2013-10-17 | 2016-08-31 | Halliburton Energy Services Inc | Distributed sensing in an optical fiber network |
| GB201421470D0 (en) | 2014-12-03 | 2015-01-14 | Silixa Ltd | Range extension for optical fiber sensing systems |
| DE102015109493A1 (de) | 2015-04-07 | 2016-10-13 | Lios Technology Gmbh | Verfahren und Vorrichtung für die Überwachung eines Seekabels |
| GB201610996D0 (en) | 2016-06-23 | 2016-08-10 | Optasense Holdings Ltd | Fibre optic sensing |
| US11874417B2 (en) | 2017-07-18 | 2024-01-16 | Fiber Sense Limited | Method and system for distributed acoustic sensing in a marine environment |
| JP7424391B2 (ja) * | 2019-12-04 | 2024-01-30 | 日本電気株式会社 | 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 |
-
2020
- 2020-09-07 WO PCT/JP2020/033811 patent/WO2021111691A1/ja not_active Ceased
- 2020-09-07 US US17/780,113 patent/US12298177B2/en active Active
- 2020-09-07 JP JP2021562457A patent/JP7347538B2/ja active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8682159B2 (en) | Optical communication system supporting detection and communication networks | |
| CN102933984B (zh) | 传感器阵列 | |
| US11101885B2 (en) | Supervisory signal paths for an optical transport system | |
| EP3404855B1 (en) | Use of band-pass filters in supervisory signal paths of an optical transport system | |
| US11095370B2 (en) | Symmetrical supervisory optical circuit for a bidirectional optical repeater | |
| 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 | |
| JPWO2021111691A5 (https=) | ||
| JPWO2021111699A5 (https=) | ||
| JP7347538B2 (ja) | 光ファイバセンシングシステム、測定装置及び測定方法 | |
| WO2004019071A2 (en) | Method and apparatus providing common optical line monitoring and service channel over wdm optical transmission system | |
| JP2018042170A (ja) | 光通信システム及び給電方法 | |
| JP6560300B2 (ja) | 光伝送装置、光伝送ルート識別装置および光伝送ルート識別方法 | |
| CN210867701U (zh) | 一种基于水下采样的有中继海底光缆扰动监测系统 | |
| US12136945B2 (en) | Optronic transceiver module | |
| JP2024028154A (ja) | 海底システムにおける環境測定用のアーキテクチャ、装置および電力輸送方法 | |
| WO2020116013A1 (ja) | 空間分割多重光ファイバ用の中継器、光送信装置及び光受信装置 | |
| CN117439664A (zh) | 具有放大滤波环回（aflb）的多跨度光纤das系统 | |
| JP3395502B2 (ja) | 光伝送装置、光送信装置、光受信装置 | |
| JP3016355B2 (ja) | 通信・観測融合海底ケーブルシステム | |
| JPS6352826B2 (https=) | ||
| WO2016049858A1 (zh) | 多路光收发模块和相关设备 | |
| JPWO2004070974A1 (ja) | 多地点監視方法、監視ポイント装置及び監視局装置 | |
| JPS59117337A (ja) | 光デ−タバス装置 | |
| WO2006132927A2 (en) | Optical supervisory channel translator | |
| JP2019186962A (ja) | 光伝送装置、光伝送ルート識別装置および光伝送ルート識別方法 |