JP2005229598A5 - - Google Patents
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- Publication number
- JP2005229598A5 JP2005229598A5 JP2005026353A JP2005026353A JP2005229598A5 JP 2005229598 A5 JP2005229598 A5 JP 2005229598A5 JP 2005026353 A JP2005026353 A JP 2005026353A JP 2005026353 A JP2005026353 A JP 2005026353A JP 2005229598 A5 JP2005229598 A5 JP 2005229598A5
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- wavelength
- path
- detecting
- change
- 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.)
- Pending
Links
- 239000000835 fiber Substances 0.000 claims 24
- 239000003550 marker Substances 0.000 claims 5
- 238000000034 method Methods 0.000 claims 5
- 230000003287 optical effect Effects 0.000 claims 5
- 230000001010 compromised effect Effects 0.000 claims 4
- 238000000253 optical time-domain reflectometry Methods 0.000 claims 4
- 238000012544 monitoring process Methods 0.000 claims 3
- 238000001514 detection method Methods 0.000 claims 2
- 230000001419 dependent effect Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 claims 1
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/776,832 US20050174563A1 (en) | 2004-02-11 | 2004-02-11 | Active fiber loss monitor and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005229598A JP2005229598A (ja) | 2005-08-25 |
| JP2005229598A5 true JP2005229598A5 (enExample) | 2009-06-18 |
Family
ID=34701367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005026353A Pending JP2005229598A (ja) | 2004-02-11 | 2005-02-02 | ファイバ損失の能動型モニタ装置及び方法 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20050174563A1 (enExample) |
| EP (1) | EP1564913A3 (enExample) |
| JP (1) | JP2005229598A (enExample) |
| CN (1) | CN1655481A (enExample) |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2853092A1 (fr) * | 2003-03-31 | 2004-10-01 | France Telecom | Dispositif optique, notamment de suppression du bruit dit de double retro-diffusion rayleigh, et installation comportant un tel dispositif |
| US20050180316A1 (en) * | 2004-02-12 | 2005-08-18 | Chan Frederick Y. | Protection for bi-directional optical wavelength division multiplexed communications networks |
| US7477913B2 (en) * | 2005-04-04 | 2009-01-13 | Research In Motion Limited | Determining a target transmit power of a wireless transmission according to security requirements |
| EP1940050A4 (en) * | 2005-09-21 | 2008-11-19 | Fujitsu Ltd | MONITORING CONTROLLIGHT TRANSMISSION METHOD AND WAVELENGTH MULTIPLEX TRANSMISSION DEVICE IN A WAVELENGTH MULTIPLEX TRANSMISSION SYSTEM |
| US20080018884A1 (en) * | 2006-01-19 | 2008-01-24 | David Butler | Intrusion Detection in Optical Fiber Networks |
| US7715710B2 (en) * | 2006-05-30 | 2010-05-11 | Alcatel Lucent | Method and system for power management in optical networks |
| US20080292312A1 (en) * | 2007-05-21 | 2008-11-27 | Tellabs Petaluma, Inc. | Method and apparatus for determining optical path attenuation between passive optical network nodes |
| US8693865B2 (en) * | 2010-01-11 | 2014-04-08 | Hewlett-Packard Development Company, L.P. | Network security using optical attenuation data |
| US8525981B2 (en) * | 2010-03-29 | 2013-09-03 | Verizon Patent And Licensing Inc. | Return loss measurement system |
| LT2577890T (lt) * | 2010-05-27 | 2019-05-27 | Exfo Inc. | Daugybinio rinkimo otdr būdas ir įtaisas |
| US20120177065A1 (en) | 2011-01-09 | 2012-07-12 | Winzer Peter J | Secure Data Transmission Using Spatial Multiplexing |
| FR2971108A1 (fr) * | 2011-01-31 | 2012-08-03 | France Telecom | Systeme de determination d'un temps de propagation d'un signal optique entre deux equipements optiques au moyen d'une liaison optique |
| US9219543B2 (en) * | 2012-07-11 | 2015-12-22 | Commscope Technologies Llc | Monitoring optical decay in fiber connectivity systems |
| US9410866B2 (en) | 2012-08-29 | 2016-08-09 | Telefonaktiebolaget L M Ericsson (Publ) | Device for monitoring an optical fibre |
| WO2015006623A1 (en) | 2013-07-10 | 2015-01-15 | Neophotonics Corporation | Optical network communication system with embedded optical time domain reflectometer and method of operation thereof |
| WO2015023255A1 (en) | 2013-08-12 | 2015-02-19 | Halliburton Energy Services, Inc | Systems and methods for spread spectrum distributed acoustic sensor monitoring |
| CN104565826B (zh) * | 2013-10-29 | 2017-07-14 | 中国石油天然气股份有限公司 | 管道光纤安全监测预警方法和系统 |
| WO2016033199A1 (en) | 2014-08-28 | 2016-03-03 | Adelos, Inc. | Real-time fiber optic interferometry controller |
| US20160099772A1 (en) * | 2014-10-07 | 2016-04-07 | Compass Electro Optical Systems Ltd. | Systems and methods for detection of intrusion in optical fiber |
| US9641243B2 (en) * | 2015-02-23 | 2017-05-02 | Exfo Inc. | Safe-mode OTDR method |
| US9847831B2 (en) | 2016-04-08 | 2017-12-19 | Ciena Corporation | Dual wavelenth optical time domain reflectometer systems and methods embedded in a WDM system |
| CN107836090B (zh) * | 2016-04-14 | 2019-11-29 | 华为技术有限公司 | 一种光纤状态检测方法、光监控单元及站点 |
| CN107465502A (zh) * | 2016-06-02 | 2017-12-12 | 华为技术有限公司 | 一种量子通信方法和相关装置 |
| CN105911693A (zh) * | 2016-06-28 | 2016-08-31 | 成都启源电子信息技术有限公司 | 一种光纤传输损耗补偿方法 |
| US10142028B2 (en) * | 2016-06-29 | 2018-11-27 | Dell Products L.P. | Signaling method for leveraging power attenuation in a mandrel-wrapped optical fiber |
| US10892822B2 (en) * | 2017-02-01 | 2021-01-12 | British Telecommunications Public Limited Company | Optical fiber event location |
| CN111051843B (zh) | 2017-07-20 | 2022-03-18 | 英国电讯有限公司 | 光纤 |
| GB201714844D0 (en) | 2017-09-15 | 2017-11-01 | Airbus Defence & Space Ltd | Method of data transmission |
| CN108667513A (zh) * | 2018-04-08 | 2018-10-16 | 四川微迪智控科技有限公司 | 一种基于sfp模块的ddm功能的光纤链路管理系统及使用寿命预估方法 |
| US10739229B2 (en) * | 2018-07-25 | 2020-08-11 | Stc.Unm | Systems and methods for measuring absorption coefficients of doped optical fibers |
| CN110784258A (zh) * | 2019-11-04 | 2020-02-11 | 宁波市樱铭电子科技有限公司 | 一种光通道控制系统 |
| US11251864B1 (en) * | 2020-07-01 | 2022-02-15 | Amazon Technologies, Inc. | Logical cut of an optical fiber due to fiber events |
| US11910134B2 (en) * | 2020-11-06 | 2024-02-20 | Google Llc | Optical link diagnostic system |
| CN114244430B (zh) * | 2021-12-17 | 2023-06-27 | 武汉光迅电子技术有限公司 | 一种检测edfa光信号质量的方法和装置 |
| CN114884570B (zh) * | 2022-06-16 | 2024-01-19 | 北京泛在云科技有限公司 | 一种光纤窃听检测方法及装置 |
Family Cites Families (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4174149A (en) * | 1976-08-19 | 1979-11-13 | The United States Of America As Represented By The Secretary Of The Army | Secure fiber optics communication system |
| GB2060869B (en) * | 1979-10-16 | 1983-11-02 | Standard Telephones Cables Ltd | Secure optical data systems |
| GB8500728D0 (en) * | 1985-01-11 | 1994-01-26 | Harris Alun J | Monitoring of optical communications fibres |
| US4903339A (en) * | 1988-06-16 | 1990-02-20 | The United States Of America As Represented By The Director, National Security Agency | Locally nulled sine-wave total power alarm for intrusion detecting optical communications systems |
| US4965856A (en) * | 1989-05-23 | 1990-10-23 | Arbus Inc. | Secure optical-fiber communication system |
| US5013907A (en) * | 1990-03-27 | 1991-05-07 | Tektronix, Inc. | Optical time domain testing instrument |
| US5504617A (en) * | 1994-02-08 | 1996-04-02 | British Telecommunications Public Limited Company | Optical time domain reflectometry |
| US5534994A (en) * | 1994-06-29 | 1996-07-09 | Corning Incorporated | Optical waveguide spectral attenuation using an OTDR |
| US5825516A (en) * | 1996-07-25 | 1998-10-20 | Hewlett-Packard Company | Optical power meter for detecting loss factors in fiber optic communications |
| CA2195153C (en) * | 1997-01-15 | 2003-12-30 | Dennis K. W. Lam | Surveillance system for passive branched optical networks |
| US6115154A (en) * | 1998-09-18 | 2000-09-05 | Telcordia Technologies, Inc. | Method and system for detecting loss of signal in wavelength division multiplexed systems |
| US6347008B1 (en) * | 1999-06-14 | 2002-02-12 | Tellium, Inc. | Optical amplifier system and optical network having flattened gain and constant per channel output power |
| US6441364B1 (en) * | 1999-06-25 | 2002-08-27 | Zvi Regev | Learned behavior optical power source controller |
| US6417962B1 (en) * | 1999-07-07 | 2002-07-09 | Corning Incorporated | Optical waveguide amplifier optical service channel accessor device and method of making |
| WO2001033750A1 (en) * | 1999-10-29 | 2001-05-10 | Fujitsu Limited | Optical transmission device and optical repeating device |
| US6631027B2 (en) * | 2000-04-13 | 2003-10-07 | Corning Incorporated | Universal controller for an optical amplifier that operates over a wide dynamic range of optical signals and optical amplifiers utilizing such controllers |
| US6417970B1 (en) * | 2000-06-08 | 2002-07-09 | Interactive Imaging Systems | Two stage optical system for head mounted display |
| US7088436B2 (en) * | 2000-12-04 | 2006-08-08 | Ross Alexander Saunders | Integrated optical time domain reflectometer and optical supervisory network |
| US6542287B1 (en) * | 2000-12-12 | 2003-04-01 | Onetta, Inc. | Optical amplifier systems with transient control |
| US6661570B2 (en) * | 2000-12-26 | 2003-12-09 | Sumitomo Electric Industries, Ltd. | Optical amplifier, optical communication system including the same, and optical fiber module included in the same |
| US6535330B1 (en) * | 2001-03-31 | 2003-03-18 | Corning Incorporated | Dynamic controller for a multi-channel optical amplifier |
| US7123833B2 (en) * | 2001-08-09 | 2006-10-17 | Cidra Corporation | Dynamically reconfigurable optical smart node |
| FR2828776A1 (fr) * | 2001-08-16 | 2003-02-21 | Cit Alcatel | Procede de securisation d'un systeme de transmission optique, dispositif pour la mise en oeuvre de ce procede et systeme de transmission optique incorporant un tel dispositif |
| US6577789B1 (en) * | 2001-09-26 | 2003-06-10 | Onetta, Inc. | Double-pass optical amplifiers and optical network equipment |
| US6647159B1 (en) * | 2002-01-25 | 2003-11-11 | The United States Of America As Represented By The National Security Agency | Tension-tuned acousto-optic bandpass filter |
| JP4118091B2 (ja) * | 2002-06-17 | 2008-07-16 | 富士通株式会社 | Ase光を利用したプリアンプのゲイン設定方法及び、これを適用するwdm光伝送装置 |
-
2004
- 2004-02-11 US US10/776,832 patent/US20050174563A1/en not_active Abandoned
-
2005
- 2005-02-01 CN CNA2005100541893A patent/CN1655481A/zh active Pending
- 2005-02-02 EP EP05250564A patent/EP1564913A3/en not_active Withdrawn
- 2005-02-02 JP JP2005026353A patent/JP2005229598A/ja active Pending
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