NO317569B1 - Sensorgrupper med forsterkning - Google Patents
Sensorgrupper med forsterkning Download PDFInfo
- Publication number
- NO317569B1 NO317569B1 NO19990103A NO990103A NO317569B1 NO 317569 B1 NO317569 B1 NO 317569B1 NO 19990103 A NO19990103 A NO 19990103A NO 990103 A NO990103 A NO 990103A NO 317569 B1 NO317569 B1 NO 317569B1
- Authority
- NO
- Norway
- Prior art keywords
- optical
- sensors
- return
- bus
- signal
- Prior art date
Links
- 230000003321 amplification Effects 0.000 title claims description 41
- 238000003199 nucleic acid amplification method Methods 0.000 title claims description 41
- 230000003287 optical effect Effects 0.000 claims description 301
- 238000009826 distribution Methods 0.000 claims description 218
- 239000000835 fiber Substances 0.000 claims description 163
- 230000008878 coupling Effects 0.000 claims description 107
- 238000010168 coupling process Methods 0.000 claims description 107
- 238000005859 coupling reaction Methods 0.000 claims description 107
- 230000000694 effects Effects 0.000 claims description 49
- 238000000034 method Methods 0.000 claims description 48
- 238000001514 detection method Methods 0.000 claims description 30
- 230000005540 biological transmission Effects 0.000 claims description 28
- 239000013307 optical fiber Substances 0.000 claims description 22
- 238000005086 pumping Methods 0.000 claims description 21
- 230000004044 response Effects 0.000 claims description 6
- 230000001186 cumulative effect Effects 0.000 claims description 4
- 230000001902 propagating effect Effects 0.000 claims description 4
- 230000000644 propagated effect Effects 0.000 claims 3
- 238000003491 array Methods 0.000 description 17
- 238000003780 insertion Methods 0.000 description 17
- 230000037431 insertion Effects 0.000 description 17
- 230000002269 spontaneous effect Effects 0.000 description 14
- 238000013461 design Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 10
- 108010087967 type I signal peptidase Proteins 0.000 description 10
- 230000007423 decrease Effects 0.000 description 9
- 230000009467 reduction Effects 0.000 description 8
- 230000035945 sensitivity Effects 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 230000006866 deterioration Effects 0.000 description 7
- 230000009022 nonlinear effect Effects 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 230000015556 catabolic process Effects 0.000 description 6
- 239000004020 conductor Substances 0.000 description 6
- 238000006731 degradation reaction Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 238000012546 transfer Methods 0.000 description 6
- 238000001069 Raman spectroscopy Methods 0.000 description 4
- 101150095130 URAD gene Proteins 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000012552 review Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 229910052691 Erbium Inorganic materials 0.000 description 2
- YTAHJIFKAKIKAV-XNMGPUDCSA-N [(1R)-3-morpholin-4-yl-1-phenylpropyl] N-[(3S)-2-oxo-5-phenyl-1,3-dihydro-1,4-benzodiazepin-3-yl]carbamate Chemical compound O=C1[C@H](N=C(C2=C(N1)C=CC=C2)C1=CC=CC=C1)NC(O[C@H](CCN1CCOCC1)C1=CC=CC=C1)=O YTAHJIFKAKIKAV-XNMGPUDCSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000005094 computer simulation Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- -1 erbium ions Chemical class 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010011732 Cyst Diseases 0.000 description 1
- 230000005534 acoustic noise Effects 0.000 description 1
- 230000003042 antagnostic effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 208000031513 cyst Diseases 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks
- H01J5/16—Optical or photographic arrangements structurally combined with the vessel
-
- 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
- H04B10/29—Repeaters
- H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
- H04B10/293—Signal power control
- H04B10/2933—Signal power control considering the whole optical path
- H04B10/2939—Network aspects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35383—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using multiple sensor devices using multiplexing techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
- G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
- Optical Transform (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US2169996P | 1996-07-12 | 1996-07-12 | |
| US3480497P | 1997-01-02 | 1997-01-02 | |
| US3611497P | 1997-01-17 | 1997-01-17 | |
| US08/814,548 US5866898A (en) | 1996-07-12 | 1997-03-11 | Time domain multiplexed amplified sensor array with improved signal to noise ratios |
| PCT/US1997/011906 WO1998002898A1 (en) | 1996-07-12 | 1997-07-10 | Amplified sensor arrays |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO990103D0 NO990103D0 (no) | 1999-01-11 |
| NO990103L NO990103L (no) | 1999-03-09 |
| NO317569B1 true NO317569B1 (no) | 2004-11-15 |
Family
ID=27487031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO19990103A NO317569B1 (no) | 1996-07-12 | 1999-01-11 | Sensorgrupper med forsterkning |
Country Status (11)
| Country | Link |
|---|---|
| US (4) | US5866898A (de) |
| EP (1) | EP0910863B1 (de) |
| JP (1) | JP4112012B2 (de) |
| KR (1) | KR100471336B1 (de) |
| AU (1) | AU717505B2 (de) |
| CA (1) | CA2260119C (de) |
| DE (1) | DE69725145T2 (de) |
| IL (1) | IL128004A (de) |
| NO (1) | NO317569B1 (de) |
| TW (1) | TW383523B (de) |
| WO (1) | WO1998002898A1 (de) |
Families Citing this family (60)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5866898A (en) | 1996-07-12 | 1999-02-02 | The Board Of Trustees Of The Leland Stanford Junior University | Time domain multiplexed amplified sensor array with improved signal to noise ratios |
| US6200309B1 (en) * | 1997-02-13 | 2001-03-13 | Mcdonnell Douglas Corporation | Photodynamic therapy system and method using a phased array raman laser amplifier |
| US5898801A (en) * | 1998-01-29 | 1999-04-27 | Lockheed Martin Corporation | Optical transport system |
| US6678211B2 (en) | 1998-04-03 | 2004-01-13 | The Board Of Trustees Of The Leland Stanford Junior University | Amplified tree structure technology for fiber optic sensor arrays |
| US6097486A (en) * | 1998-04-03 | 2000-08-01 | The Board Of Trustees Of The Leland Stanford Junior University | Fiber optic acoustic sensor array based on Sagnac interferometer |
| US6667935B2 (en) | 1998-04-03 | 2003-12-23 | The Board Of Trustees Of The Leland Stanford Junior University | Apparatus and method for processing optical signals from two delay coils to increase the dynamic range of a sagnac-based fiber optic sensor array |
| US6034924A (en) * | 1998-04-03 | 2000-03-07 | The Board Of Trustees Of The Leland Stanford Junior Univerisity | Folded sagnac sensor array |
| US6278657B1 (en) | 1998-04-03 | 2001-08-21 | The Board Of Trustees Of The Leland Stanford Junior University | Folded sagnac sensor array |
| US6249622B1 (en) | 1998-06-26 | 2001-06-19 | Litton Systems, Inc. | Architecture for large optical fiber array using standard 1×2 couplers |
| US6711359B1 (en) * | 1999-03-10 | 2004-03-23 | Tyco Telecommunications (Us) Inc. | Optical fiber communication system employing doped optical fiber and Raman amplification |
| US6507679B1 (en) * | 1999-05-13 | 2003-01-14 | Litton Systems, Inc. | Long distance, all-optical telemetry for fiber optic sensor using remote optically pumped EDFAs |
| US6282334B1 (en) | 1999-05-13 | 2001-08-28 | Litton Systems, Inc. | Large scale WDM/TDM sensor array employing erbium-doped fiber amplifiers |
| CA2320453A1 (en) * | 1999-10-29 | 2001-04-29 | Litton Systems, Inc. | Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors |
| US6269198B1 (en) | 1999-10-29 | 2001-07-31 | Litton Systems, Inc. | Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors |
| US6728165B1 (en) | 1999-10-29 | 2004-04-27 | Litton Systems, Inc. | Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors |
| US6724319B1 (en) | 1999-10-29 | 2004-04-20 | Litton Systems, Inc. | Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors |
| US6746066B2 (en) * | 2000-02-22 | 2004-06-08 | Harry F. Reed | Truck bed extension |
| US6480326B2 (en) | 2000-07-10 | 2002-11-12 | Mpb Technologies Inc. | Cascaded pumping system and method for producing distributed Raman amplification in optical fiber telecommunication systems |
| US20020101874A1 (en) * | 2000-11-21 | 2002-08-01 | Whittaker G. Allan | Physical layer transparent transport information encapsulation methods and systems |
| US20030035205A1 (en) * | 2001-08-20 | 2003-02-20 | Zisk Edward J. | Fiber optic sensor signal amplifier |
| US6771865B2 (en) * | 2002-03-20 | 2004-08-03 | Corning Incorporated | Low bend loss optical fiber and components made therefrom |
| US7085497B2 (en) * | 2002-04-03 | 2006-08-01 | Lockheed Martin Corporation | Vehicular communication system |
| FR2839796B1 (fr) * | 2002-05-15 | 2004-11-26 | Ermme | Systeme d'acquisition multi-voies synchrones pour la mesure de grandeurs physiques, module d'acquisition utilise et procede mis en oeuvre dans un tel systeme |
| US6995899B2 (en) * | 2002-06-27 | 2006-02-07 | Baker Hughes Incorporated | Fiber optic amplifier for oilfield applications |
| US6850461B2 (en) * | 2002-07-18 | 2005-02-01 | Pgs Americas, Inc. | Fiber-optic seismic array telemetry, system, and method |
| GB2417627B (en) * | 2002-07-18 | 2006-07-19 | Pgs Americas Inc | Fiber-optic seismic array telemetry system, and method |
| US20040046109A1 (en) * | 2002-09-05 | 2004-03-11 | Chen Peter C. | Method and apparatus for high speed interrogation of fiber optic detector arrays |
| US20040076434A1 (en) * | 2002-09-27 | 2004-04-22 | Whittaker G. Allan | Optical distribution network for RF and other analog signals |
| US7570887B2 (en) * | 2003-03-31 | 2009-08-04 | Lockheed Martin Corporation | Optical network interface systems and devices |
| WO2005004356A1 (ja) * | 2003-07-04 | 2005-01-13 | Nippon Telegraph And Telephone Corporation | 遠隔励起を用いた光ファイバ通信システム |
| US6827597B1 (en) | 2003-11-20 | 2004-12-07 | Pgs Americas, Inc. | Combined electrical and optical cable connector particularly suited for marine seismic sensor streamers |
| DE102004047745A1 (de) * | 2004-09-30 | 2006-04-27 | Siemens Ag | Ermittlung der verstärkten spontanen Emission in einem optischen Faserverstärker |
| JP4290128B2 (ja) * | 2005-02-25 | 2009-07-01 | キヤノン株式会社 | センサ |
| US7310464B2 (en) * | 2005-06-21 | 2007-12-18 | Litton Systems, Inc. | Multi-wavelength optical source |
| FR2889305B1 (fr) * | 2005-07-28 | 2007-10-19 | Sercel Sa | Reseau d'interferometres a fibre optique |
| GB0606010D0 (en) * | 2006-03-25 | 2006-05-03 | Qinetiq Ltd | Fibre-Optic Sensor Array |
| GB2449941B (en) * | 2007-06-08 | 2011-11-02 | Stingray Geophysical Ltd | Seismic cable structure |
| JP4724798B2 (ja) * | 2007-06-25 | 2011-07-13 | 独立行政法人海洋研究開発機構 | 光ファイバ広域センサシステム |
| US7622706B2 (en) | 2008-01-18 | 2009-11-24 | Pgs Geophysical As | Sensor cable and multiplexed telemetry system for seismic cables having redundant/reversible optical connections |
| US20100013663A1 (en) | 2008-07-16 | 2010-01-21 | Halliburton Energy Services, Inc. | Downhole Telemetry System Using an Optically Transmissive Fluid Media and Method for Use of Same |
| US9784642B2 (en) * | 2008-09-23 | 2017-10-10 | Onesubsea Ip Uk Limited | Redundant optical fiber system and method for remotely monitoring the condition of a pipeline |
| GB2478915B (en) * | 2010-03-22 | 2012-11-07 | Stingray Geophysical Ltd | Sensor array |
| US8864374B2 (en) * | 2010-08-13 | 2014-10-21 | Qorex Llc | Low profile, high temperature, hydrogen tolerant optical sensing cable |
| US9059799B2 (en) | 2011-04-21 | 2015-06-16 | Futurewei Technologies, Inc. | Apparatus and method to calculate a noise figure of an optical amplifier for wavelength channels in a partial-fill scenario to account for channel loading |
| US9234790B2 (en) | 2012-03-19 | 2016-01-12 | The Board Of Trustees Of The Leland Stanford Junior University | Apparatus and methods utilizing optical sensors operating in the reflection mode |
| GB2500717A (en) * | 2012-03-30 | 2013-10-02 | Stingray Geophysical Ltd | Optical sensing system with amplification |
| DE102013212665B4 (de) | 2013-06-28 | 2015-06-25 | Laser Zentrum Hannover E.V. | Verfahren zum Laserbohren oder Laserschneiden eines Werkstücks |
| DE102015209261A1 (de) * | 2015-05-21 | 2016-11-24 | Robert Bosch Gmbh | Verfahren zum Laserbohren oder Laserschneiden eines Werkstücks und System zum Laserbohren oder Laserschneiden |
| EP3311117A1 (de) * | 2015-06-22 | 2018-04-25 | Omnisens S.A. | Verfahren zur reduzierung von rauschen bei messungen mit einem verteilten sensor |
| CN105258781B (zh) * | 2015-09-24 | 2018-11-16 | 中国石油天然气股份有限公司 | 一种光纤振动检测系统及光纤振动检测方法 |
| KR102271034B1 (ko) * | 2016-03-10 | 2021-07-02 | 한국전자통신연구원 | 레이저 레이더 시스템 |
| GB201700266D0 (en) | 2017-01-06 | 2017-02-22 | Silixa Ltd | Method and apparatus for optical sensing |
| DE102017116943B4 (de) | 2017-07-26 | 2019-04-11 | Laser Zentrum Hannover E.V. | Verfahren zum Laserbohren oder Laserschneiden eines Werkstückes |
| RU2701182C1 (ru) * | 2019-03-18 | 2019-09-25 | Общество С Ограниченной Ответственностью "Киплайн" | Устройство опроса чувствительного элемента |
| RU192121U1 (ru) * | 2019-03-28 | 2019-09-04 | Общество С Ограниченной Ответственностью "Киплайн" | Устройство опроса чувствительного элемента |
| RU192122U1 (ru) * | 2019-03-28 | 2019-09-04 | Общество С Ограниченной Ответственностью "Киплайн" | Устройство опроса чувствительного элемента |
| US11193801B2 (en) * | 2019-05-22 | 2021-12-07 | Nec Corporation | Amplifier dynamics compensation for brillouin optical time-domain reflectometry |
| EP3994427A1 (de) * | 2019-07-02 | 2022-05-11 | Technology Innovation Momentum Fund (Israel) Limited Partnership | Abfrage von arrays von gleichmässig beabstandeten schwachen reflektoren in glasfasern |
| CN111044138A (zh) * | 2019-12-26 | 2020-04-21 | 北京航天控制仪器研究所 | 一种光纤激光水听器时分波分混合复用阵列系统 |
| CN115987399B (zh) * | 2023-03-20 | 2023-08-11 | 北京神州普惠科技股份有限公司 | 一种光纤水听器传输系统及光信号传输方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4768850A (en) * | 1984-06-20 | 1988-09-06 | The Board Of Trustees Of The Leland Stanford Junior University | Cascaded fiber optic lattice filter |
| US4928004A (en) * | 1988-06-20 | 1990-05-22 | Center For Innovative Technology | Method and apparatus for sensing strain |
| US5173743A (en) * | 1991-05-28 | 1992-12-22 | Litton Systems, Inc. | Fiber optical time-division-multiplexed unbalanced pulsed interferometer with polarization fading compensation |
| US5534993A (en) * | 1994-06-15 | 1996-07-09 | United Technologies Corporation | Dual-wavelength frequency-chirped microwave AMCW ladar system |
| US5866898A (en) | 1996-07-12 | 1999-02-02 | The Board Of Trustees Of The Leland Stanford Junior University | Time domain multiplexed amplified sensor array with improved signal to noise ratios |
-
1997
- 1997-03-11 US US08/814,548 patent/US5866898A/en not_active Expired - Lifetime
- 1997-07-10 AU AU37953/97A patent/AU717505B2/en not_active Expired
- 1997-07-10 WO PCT/US1997/011906 patent/WO1998002898A1/en active IP Right Grant
- 1997-07-10 DE DE69725145T patent/DE69725145T2/de not_active Expired - Lifetime
- 1997-07-10 EP EP97934895A patent/EP0910863B1/de not_active Expired - Lifetime
- 1997-07-10 KR KR10-1999-7000212A patent/KR100471336B1/ko not_active IP Right Cessation
- 1997-07-10 IL IL12800497A patent/IL128004A/en not_active IP Right Cessation
- 1997-07-10 US US08/891,287 patent/US6084233A/en not_active Expired - Lifetime
- 1997-07-10 CA CA002260119A patent/CA2260119C/en not_active Expired - Lifetime
- 1997-07-10 JP JP50611598A patent/JP4112012B2/ja not_active Expired - Fee Related
- 1997-07-11 TW TW086109833A patent/TW383523B/zh not_active IP Right Cessation
-
1999
- 1999-01-11 NO NO19990103A patent/NO317569B1/no not_active IP Right Cessation
- 1999-01-26 US US09/237,716 patent/US6040571A/en not_active Expired - Lifetime
-
2000
- 2000-06-29 US US09/606,771 patent/US6365891B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NO990103D0 (no) | 1999-01-11 |
| IL128004A (en) | 2002-04-21 |
| KR100471336B1 (ko) | 2005-03-07 |
| KR20000023748A (ko) | 2000-04-25 |
| JP4112012B2 (ja) | 2008-07-02 |
| IL128004A0 (en) | 1999-11-30 |
| EP0910863B1 (de) | 2003-09-24 |
| DE69725145D1 (de) | 2003-10-30 |
| US6084233A (en) | 2000-07-04 |
| EP0910863A1 (de) | 1999-04-28 |
| NO990103L (no) | 1999-03-09 |
| AU717505B2 (en) | 2000-03-30 |
| US6365891B1 (en) | 2002-04-02 |
| WO1998002898A1 (en) | 1998-01-22 |
| US5866898A (en) | 1999-02-02 |
| DE69725145T2 (de) | 2004-08-05 |
| US6040571A (en) | 2000-03-21 |
| CA2260119A1 (en) | 1998-01-22 |
| JP2002509606A (ja) | 2002-03-26 |
| TW383523B (en) | 2000-03-01 |
| AU3795397A (en) | 1998-02-09 |
| CA2260119C (en) | 2006-05-30 |
| EP0910863A4 (de) | 2001-01-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NO317569B1 (no) | Sensorgrupper med forsterkning | |
| US7800744B2 (en) | Detection system for identifying faults in passive optical networks | |
| US7268936B2 (en) | Optical amplifier having polarization mode dispersion compensation function | |
| NO329952B1 (no) | Fiberoptisk folerenhet | |
| NO332666B1 (no) | Storskala WDM/TDM sensorgruppe som benytter forsterkere med erbiumdopede fibere | |
| CN111928936A (zh) | 一种用于光纤水听器阵列的光发射装置 | |
| Hodgson et al. | Optimization of large-scale fiber sensor arrays incorporating multiple optical amplifiers. I. Signal-to-noise ratio | |
| US20090317083A1 (en) | Optical remote node device and support equipment for constructing and extending fiber-optic access networks | |
| Hodgson et al. | Optimization of Large-Scale Fiber Sensor Arrays Incorporating Multiple Optical Amplifiers--Part II: Pump Power | |
| JP2009216626A (ja) | 受動光線路網の破断点検出システム | |
| US7702201B2 (en) | Gain flattening utilizing a two-stage erbium-based amplifier | |
| US20040207912A1 (en) | Method and apparatus for distributing pump energy to an optical amplifier array in an asymmetric manner | |
| Diaz et al. | Wavelength-division-multiplexed distributed fiber Raman amplifier bus network for sensors | |
| Sachdeva et al. | L-band PON (NG-PON2) fault detection/monitoring and PWR using C-band ASEN and FBGs | |
| Hodgson et al. | Large-scale interferometric fiber sensor arrays incorporating multiple optical switches | |
| US9634788B2 (en) | Optical communication system having low latency | |
| EP1206016A1 (de) | Temperaturstabilisierter optischer Verstärker und Methode zur Temperaturstabilisierung eines optische Verstärkers | |
| CN117029885A (zh) | 一种基于网状多级遥泵放大的大范围海底监测botda系统 | |
| Díaz Lucas et al. | Wavelength-division-multiplexed distributed fiber Raman amplifier bus network for sensors | |
| Hodgson | Large-scale interferometric fiber sensor arrays with erbium-doped fiber amplifier telemetry | |
| Liu et al. | Influence of interferometric cross talk in a cascade of 10-Gbit/s wavelength routers and an improved Gaussian cross talk model | |
| Liao | Next generation heavily multiplexed interferometric sensor arrays | |
| Liaw et al. | Power compensated bi-directional reconfigurable optical add/drop multiplexer using built-in optical amplifier | |
| Díaz Lucas et al. | Comparison of wavelength-division-multiplexed distributed fiber Raman amplifier networks for sensors | |
| JPH02291505A (ja) | 光信号分配方式 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK1K | Patent expired |