SG48917A1 - Optical time domain reflectometry - Google Patents
Optical time domain reflectometryInfo
- Publication number
- SG48917A1 SG48917A1 SG1996003731A SG1996003731A SG48917A1 SG 48917 A1 SG48917 A1 SG 48917A1 SG 1996003731 A SG1996003731 A SG 1996003731A SG 1996003731 A SG1996003731 A SG 1996003731A SG 48917 A1 SG48917 A1 SG 48917A1
- Authority
- SG
- Singapore
- Prior art keywords
- time domain
- optical time
- domain reflectometry
- reflectometry
- optical
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
- Lasers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94300897 | 1994-02-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
SG48917A1 true SG48917A1 (en) | 1998-05-18 |
Family
ID=8217561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG1996003731A SG48917A1 (en) | 1994-02-08 | 1995-02-01 | Optical time domain reflectometry |
Country Status (8)
Country | Link |
---|---|
US (1) | US5504617A (fr) |
EP (1) | EP0745293B1 (fr) |
JP (1) | JPH09508495A (fr) |
AU (1) | AU681241B2 (fr) |
CA (1) | CA2182384C (fr) |
DE (1) | DE69512032T2 (fr) |
SG (1) | SG48917A1 (fr) |
WO (1) | WO1995022212A1 (fr) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2304280C (fr) | 1997-09-29 | 2003-07-08 | Tollgrade Communications, Inc. | Transpondeur a agilite de frequence |
US6317255B1 (en) * | 1998-04-28 | 2001-11-13 | Lucent Technologies Inc. | Method and apparatus for controlling optical signal power in response to faults in an optical fiber path |
JP2000150997A (ja) * | 1998-11-13 | 2000-05-30 | Nec Corp | 光増幅装置とこれを用いた破断点検出機能を備えた光伝送装置および双方向光伝送装置 |
US6396573B1 (en) * | 2000-02-17 | 2002-05-28 | Fitel U.S.A. Corp. | System and method for optically testing broadcasting systems |
JP2001358392A (ja) * | 2000-06-13 | 2001-12-26 | Oki Electric Ind Co Ltd | 安全光移行制御方法および光ファイバ増幅器 |
ATE232033T1 (de) | 2000-09-22 | 2003-02-15 | Cit Alcatel | Verfahren zur überwachung eines optischen wellenleiters, überwachungsvorrichtung und überwachungseinheit für das verfahren |
JP3904835B2 (ja) * | 2001-01-29 | 2007-04-11 | 株式会社日立製作所 | 光増幅器、光ファイバラマン光増幅器、及び光システム |
US7505197B2 (en) * | 2003-03-13 | 2009-03-17 | Fujitsu Limited | Optical amplifier provided with control function of pumping light, and optical transmission system using the same |
US20050174563A1 (en) * | 2004-02-11 | 2005-08-11 | Evans Alan F. | Active fiber loss monitor and method |
GB2424311B (en) * | 2005-03-18 | 2008-02-13 | Sensor Highway Ltd | Optical pulse generator for distributed temperature sensing operating at a characteristic wavelength in a range between 1050 nm and 1090 nm |
CN101729151B (zh) * | 2008-10-10 | 2012-02-01 | 华为海洋网络有限公司 | 一种光传输方法、装置和系统 |
US9148710B2 (en) * | 2012-09-19 | 2015-09-29 | Ciena Corporation | Raman amplifier system and method with integrated optical time domain reflectometer |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5363463A (en) * | 1982-08-06 | 1994-11-08 | Kleinerman Marcos Y | Remote sensing of physical variables with fiber optic systems |
US5214728A (en) * | 1990-06-19 | 1993-05-25 | Sumitomo Electric Industries, Ltd. | Light communication system |
JP2804633B2 (ja) * | 1991-02-12 | 1998-09-30 | 日本電信電話株式会社 | 光折り返し/媒体試験器 |
GB9115453D0 (en) * | 1991-07-18 | 1991-09-04 | British Telecomm | Fault location in optical systems |
GB9202564D0 (en) * | 1992-02-07 | 1992-03-25 | Marconi Gec Ltd | Optical signal transmission network |
JPH06117961A (ja) * | 1992-10-05 | 1994-04-28 | Furukawa Electric Co Ltd:The | 光線路監視方法 |
US5280549A (en) * | 1993-02-05 | 1994-01-18 | National Research Council Of Canada | Frequency dependent optical isolator |
-
1994
- 1994-04-20 US US08/230,370 patent/US5504617A/en not_active Expired - Lifetime
-
1995
- 1995-02-01 WO PCT/GB1995/000201 patent/WO1995022212A1/fr active IP Right Grant
- 1995-02-01 DE DE69512032T patent/DE69512032T2/de not_active Expired - Lifetime
- 1995-02-01 SG SG1996003731A patent/SG48917A1/en unknown
- 1995-02-01 EP EP95907085A patent/EP0745293B1/fr not_active Expired - Lifetime
- 1995-02-01 AU AU15420/95A patent/AU681241B2/en not_active Ceased
- 1995-02-01 CA CA002182384A patent/CA2182384C/fr not_active Expired - Lifetime
- 1995-02-01 JP JP7520262A patent/JPH09508495A/ja not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
CA2182384C (fr) | 2000-06-27 |
CA2182384A1 (fr) | 1995-08-17 |
AU681241B2 (en) | 1997-08-21 |
DE69512032T2 (de) | 2000-03-23 |
AU1542095A (en) | 1995-08-29 |
JPH09508495A (ja) | 1997-08-26 |
WO1995022212A1 (fr) | 1995-08-17 |
DE69512032D1 (de) | 1999-10-14 |
EP0745293B1 (fr) | 1999-09-08 |
EP0745293A1 (fr) | 1996-12-04 |
US5504617A (en) | 1996-04-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB9700269D0 (en) | Improvements to optical time domain reflectometry | |
GB9315231D0 (en) | Optical time domain reflextometry | |
HK1011086A1 (en) | Optical component | |
GB9616281D0 (en) | Optical device | |
HK1003156A1 (en) | Optical network | |
PL331097A1 (en) | Interferometer | |
GB9610471D0 (en) | Optical measurement | |
GB9600947D0 (en) | Optical Device | |
EP1130376A4 (fr) | Reflectometre optique temporel | |
DE69309025D1 (de) | Optischer Zeitbereichreflektometer | |
AU3973093A (en) | Optical coherence domain reflectometer | |
SG48917A1 (en) | Optical time domain reflectometry | |
DE69525956D1 (en) | Interferometer | |
EP1126264A4 (fr) | Reflectometre optique a domaine temporel | |
US5734477C1 (en) | Optical device having multilenses | |
GB9418738D0 (en) | Interferometer | |
GB2292216B (en) | Optical probes | |
GB9424160D0 (en) | Light counter | |
GB9211994D0 (en) | Optical time domain reflectometer | |
GB9412347D0 (en) | Optical device | |
IL110199A0 (en) | An optical network | |
GB9709302D0 (en) | Time domain reflectometry | |
GB8915165D0 (en) | Optical time domain reflectometry | |
GB8914364D0 (en) | Optical time domain reflectometry | |
GB9501805D0 (en) | Optical protetion device |