EA202090883A1 - Специально разработанное распределенное усиление для измерений с помощью волоконных линий - Google Patents

Специально разработанное распределенное усиление для измерений с помощью волоконных линий

Info

Publication number
EA202090883A1
EA202090883A1 EA202090883A EA202090883A EA202090883A1 EA 202090883 A1 EA202090883 A1 EA 202090883A1 EA 202090883 A EA202090883 A EA 202090883A EA 202090883 A EA202090883 A EA 202090883A EA 202090883 A1 EA202090883 A1 EA 202090883A1
Authority
EA
Eurasian Patent Office
Prior art keywords
wavelength
light
raman
probe
optical fiber
Prior art date
Application number
EA202090883A
Other languages
English (en)
Other versions
EA039291B1 (ru
Inventor
Эйтан Роуэн
Эран Инбар
Original Assignee
Призма Фотоникс Лтд.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=61198597&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EA202090883(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Призма Фотоникс Лтд. filed Critical Призма Фотоникс Лтд.
Publication of EA202090883A1 publication Critical patent/EA202090883A1/ru
Publication of EA039291B1 publication Critical patent/EA039291B1/ru

Links

Classifications

    • 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
    • G01D5/35338—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 other arrangements than interferometer arrangements
    • G01D5/35354—Sensor working in reflection
    • G01D5/35358—Sensor working in reflection using backscattering to detect the measured quantity
    • G01D5/35364—Sensor working in reflection using backscattering to detect the measured quantity using inelastic backscattering to detect the measured quantity, e.g. using Brillouin or Raman backscattering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
    • H01S3/094042—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a fibre laser
    • H01S3/094046—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a fibre laser of a Raman fibre laser
    • 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
    • G01D5/35306—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 an interferometer arrangement
    • G01D5/35309—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 an interferometer arrangement using multiple waves interferometer
    • G01D5/35316—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 an interferometer arrangement using multiple waves interferometer using a Bragg gratings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
    • G01K11/3206—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres at discrete locations in the fibre, e.g. using Bragg scattering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
    • G01K11/324—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres using Raman scattering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/0675—Resonators including a grating structure, e.g. distributed Bragg reflectors [DBR] or distributed feedback [DFB] fibre lasers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/06754—Fibre amplifiers
    • H01S3/06787—Bidirectional amplifier
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
    • H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
    • H01S3/094011—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre with bidirectional pumping, i.e. with injection of the pump light from both two ends of the fibre
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
    • H01S3/108—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
    • H01S3/1086—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering using scattering effects, e.g. Raman or Brillouin effect
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/30—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
    • H01S3/302—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects in an optical fibre
    • 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
    • H04B10/2912—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing
    • H04B10/2916—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing using Raman or Brillouin amplifiers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Optical Transform (AREA)
  • Artificial Filaments (AREA)
  • Multicomponent Fibers (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)

Abstract

Способ обеспечения линейного рамановского усиления в оптико-волоконной сенсорной системе, включающий процедуры генерирования зондирующего света с зондирующей длиной волны, передачи зондирующего света в оптическое волокно, генерирования по меньшей мере одного рамановского светового пучка накачки на соответствующей длине волны накачки, при этом длина волны накачки короче зондирующей длины волны, генерирования по меньшей мере одного рамановского затравочного света на соответствующей затравочной длине волны, при этом затравочная длина волны находится между длиной волны накачки и зондирующей длиной волны, передачи рамановского светового пучка накачки в оптическое волокно, передачи рамановского затравочного света в оптическое волокно и распространения рамановского светового пучка накачки, рамановского затравочного света и зондирующего света по линии оптического волокна для достижения распределенного рамановского усиления сигнального света, создаваемого зондирующим светом, когда он распространяется по линии оптического волокна.
EA202090883A 2017-09-29 2018-09-26 Специально разработанное распределенное усиление для измерений с помощью волоконных линий EA039291B1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL254803A IL254803B2 (en) 2017-09-29 2017-09-29 Distributed amplification optimized for fiber sensing
PCT/IL2018/051070 WO2019064302A1 (en) 2017-09-29 2018-09-26 PERSONALIZED DISTRIBUTED AMPLIFICATION FOR FIBER DETECTION

Publications (2)

Publication Number Publication Date
EA202090883A1 true EA202090883A1 (ru) 2020-09-08
EA039291B1 EA039291B1 (ru) 2021-12-29

Family

ID=61198597

Family Applications (1)

Application Number Title Priority Date Filing Date
EA202090883A EA039291B1 (ru) 2017-09-29 2018-09-26 Специально разработанное распределенное усиление для измерений с помощью волоконных линий

Country Status (9)

Country Link
US (2) US10451448B2 (ru)
EP (1) EP3688847B1 (ru)
CN (1) CN111373613B (ru)
AU (1) AU2018343339B2 (ru)
CA (1) CA3077479C (ru)
EA (1) EA039291B1 (ru)
ES (1) ES2936846T3 (ru)
IL (1) IL254803B2 (ru)
WO (1) WO2019064302A1 (ru)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019503120A (ja) * 2015-12-03 2019-01-31 ザ アリゾナ ボード オブ リージェンツ オン ビハーフ オブ ザ ユニバーシティー オブ アリゾナＴｈｅ Ａｒｉｚｏｎａ Ｂｏａｒｄ ｏｆ Ｒｅｇｅｎｔｓ ｏｎ ｂｅｈａｌｆ ｏｆ Ｔｈｅ Ｕｎｉｖｅｒｓｉｔｙ ｏｆ Ａｒｉｚｏｎａ Ｗｄｍネットワークにおける信号品質の高速な探査
IL254803B2 (en) * 2017-09-29 2023-09-01 Prisma Photonics Ltd Distributed amplification optimized for fiber sensing
US10775246B2 (en) * 2018-03-09 2020-09-15 Viavi Solutions Inc. Single-band distributed temperature sensing
JP6888579B2 (ja) * 2018-04-04 2021-06-16 日本電信電話株式会社 環境特性測定装置および環境特性測定方法
US20210215555A1 (en) * 2018-06-27 2021-07-15 Victoria Link Limited Optical fibre sensing system and method
JP7040390B2 (ja) * 2018-10-02 2022-03-23 日本電信電話株式会社 後方散乱光増幅装置、光パルス試験装置、後方散乱光増幅方法、及び光パルス試験方法
JP7040391B2 (ja) * 2018-10-02 2022-03-23 日本電信電話株式会社 後方散乱光増幅装置、光パルス試験装置、後方散乱光増幅方法、及び光パルス試験方法
US10697806B2 (en) * 2018-11-16 2020-06-30 General Electric Company Integrated fiber-optic perturbation sensor
US11018761B2 (en) * 2019-05-01 2021-05-25 Ultra Communications, Inc. Automated system for link health assessment in fiber optic networks
US11047230B2 (en) * 2019-05-16 2021-06-29 Halliburton Energy Services, Inc. Topside interrogation for distributed acoustic sensing of subsea wells
CN110440838B (zh) * 2019-08-19 2021-09-21 武汉地震工程研究院有限公司 一种基于多芯光纤的多参量光纤传感仪器和传感方法
US11788908B2 (en) * 2019-09-20 2023-10-17 The Government Of The United States Of America, As Represented By The Secretary Of The Navy Methods and apparatuses for quantitative sensing using Rayleigh scattering in optical fiber
SE544356C2 (en) * 2020-01-15 2022-04-19 Saab Ab Arrangement and method for obtaining a quantity related to a temperature along a part of an optical fibre
WO2022054923A1 (en) * 2020-09-11 2022-03-17 Atonarp Inc. System including a fiber laser module
US20220186612A1 (en) * 2020-12-14 2022-06-16 Halliburton Energy Services, Inc. Apparatus And Methods For Distributed Brillouin Frequency Sensing Offshore
US11898900B1 (en) * 2021-02-25 2024-02-13 Cable Television Laboratories, Inc. Distributed fiber optic sensing systems and methods
US11946365B2 (en) * 2021-08-13 2024-04-02 Halliburton Energy Services, Inc. Multi-fiber sensing topology for subsea wells
CN114088123B (zh) * 2022-01-19 2022-04-12 苏州光格科技股份有限公司 基于布里渊光时域分析的传感装置和传感方法
US11671172B1 (en) * 2022-02-25 2023-06-06 Huawei Technologies Co., Ltd. Systems and methods for characterizing an optical fiber in a dense wavelength division multiplexing optical link
DE102022108430A1 (de) * 2022-04-07 2023-10-12 Luna Innovations Germany Gmbh Vorrichtung zur ortsaufgelösten Messung einer physikalischen Größe

Family Cites Families (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4616898A (en) * 1980-03-31 1986-10-14 Polaroid Corporation Optical communication systems using raman repeaters and components therefor
GB2182222B (en) 1985-10-18 1990-01-24 Stc Plc Optical fibre testing
US6163636A (en) 1999-01-19 2000-12-19 Lucent Technologies Inc. Optical communication system using multiple-order Raman amplifiers
US6486466B1 (en) 1999-04-28 2002-11-26 Tyco Telecommunications (Us) Inc. Wide bandwidth raman amplifier having a substantially flat gain profile
US6519026B1 (en) * 1999-08-06 2003-02-11 Lucent Technologies Inc. Optical time-domain reflectometer (OTDR)
DE10012881B4 (de) * 2000-03-16 2008-09-04 Nokia Siemens Networks Gmbh & Co.Kg Ramanverstärkeranordnung
US6700696B2 (en) 2000-08-09 2004-03-02 Jds Uniphase Corporation High order fiber Raman amplifiers
US6433922B1 (en) * 2001-02-26 2002-08-13 Redc Optical Networks Ltd. Apparatus and method for a self adjusting Raman amplifier
US6850360B1 (en) * 2001-04-16 2005-02-01 Bookham, Inc. Raman amplifier systems with diagnostic capabilities
JP2003021743A (ja) * 2001-07-09 2003-01-24 Furukawa Electric Co Ltd:The 光ファイバおよび該光ファイバを用いた光伝送システム
US6731428B2 (en) * 2001-11-21 2004-05-04 Lucent Technologies Inc. Pump monitoring and control in a fiber Raman amplifier
JP2003255413A (ja) * 2002-03-06 2003-09-10 Sumitomo Electric Ind Ltd ラマン増幅器及び光伝送システム
US7253944B2 (en) * 2002-07-31 2007-08-07 Pirelli & C. S.P.A. Multi-stage raman amplifier
CN100487548C (zh) * 2003-03-13 2009-05-13 富士通株式会社 具有激射光控制功能的光放大器和使用该光放大器的光传输系统
US7554721B2 (en) * 2003-08-01 2009-06-30 Fujitsu Limited Raman amplifier and Raman amplifier adjustment method
GB2430094A (en) 2004-07-06 2007-03-14 Shell Int Research Light pulse amplification in long optical fibers
JP3977363B2 (ja) * 2004-08-30 2007-09-19 日本電信電話株式会社 ラマン増幅器及び光通信システム
US7508575B2 (en) * 2004-09-28 2009-03-24 Mpb Cascaded pump delivery for remotely pumped erbium-doped fiber amplifiers
US7519253B2 (en) * 2005-11-18 2009-04-14 Omni Sciences, Inc. Broadband or mid-infrared fiber light sources
GB0614991D0 (en) 2006-07-28 2006-09-06 Schlumberger Holdings Improvements to raman amplification in distributed sensors
JP4834718B2 (ja) * 2008-01-29 2011-12-14 キヤノン株式会社 パルスレーザ装置、テラヘルツ発生装置、テラヘルツ計測装置及びテラヘルツトモグラフィー装置
ES2388629B1 (es) * 2009-05-22 2013-08-27 Consejo Superior De Investigaciones Científicas (Csic) Sistema para la mejora del rango dinámico y la reducción de la incertidumbre de medida en sensores distribuidos sobre fibra óptica.
US8477411B2 (en) * 2009-07-17 2013-07-02 Cisco Technology, Inc. Fiber-adaptive distributed Raman amplifier pump setup scheme
CN102589459A (zh) * 2012-02-21 2012-07-18 中国计量学院 融合光纤拉曼频移器和拉曼放大器的全分布式光纤传感器
ITBO20130142A1 (it) * 2013-03-29 2014-09-30 Filippo Bastianini Interrogatore per sensori distribuiti a fibra ottica per effetto brillouin stimolato impiegante un laser brillouin ad anello sintonizzabile rapidamente
US10250326B2 (en) * 2013-05-24 2019-04-02 Ciena Corporation Embedded apparatus to monitor simulated brillouin scattering from Raman amplifier in fiber optics transmission system
JPWO2015140901A1 (ja) * 2014-03-17 2017-04-06 ギガフォトン株式会社 レーザシステム
US9823098B2 (en) * 2014-05-05 2017-11-21 Filippo Bastianini Apparatus for interrogating distributed optical fibre sensors using a stimulated brillouin scattering optical frequency-domain interferometer
US9231365B1 (en) * 2014-06-12 2016-01-05 Ofs Fitel, Llc Discrete raman amplifier
US10302467B2 (en) * 2014-06-16 2019-05-28 Ariel Scientific Innovations Ltd. Method and system for optical fiber sensing
US9874519B2 (en) * 2014-11-03 2018-01-23 Ofs Fitel, Llc Distributed Brillouin sensor
EP3411660A4 (en) * 2015-11-30 2019-11-27 Luminar Technologies, Inc. LIDAR SYSTEM WITH DISTRIBUTED LASER AND MULTIPLE SENSOR HEADS AND PULSED LASER FOR LIDAR SYSTEM
US10359302B2 (en) * 2015-12-18 2019-07-23 Schlumberger Technology Corporation Non-linear interactions with backscattered light
US10119917B2 (en) * 2016-11-11 2018-11-06 B & W Tek LLC Apparatus and method for bidirectional Raman spectroscopy
IL254803B2 (en) * 2017-09-29 2023-09-01 Prisma Photonics Ltd Distributed amplification optimized for fiber sensing

Also Published As

Publication number Publication date
US20200284622A1 (en) 2020-09-10
AU2018343339B2 (en) 2022-12-08
ES2936846T3 (es) 2023-03-22
IL254803B2 (en) 2023-09-01
US20190101419A1 (en) 2019-04-04
US11085800B2 (en) 2021-08-10
EP3688847B1 (en) 2022-11-02
CN111373613B (zh) 2023-05-02
AU2018343339A1 (en) 2020-05-21
CN111373613A (zh) 2020-07-03
CA3077479A1 (en) 2019-04-04
EA039291B1 (ru) 2021-12-29
IL254803B (en) 2019-01-31
EP3688847A1 (en) 2020-08-05
CA3077479C (en) 2021-04-06
WO2019064302A1 (en) 2019-04-04
US10451448B2 (en) 2019-10-22
EP3688847A4 (en) 2021-08-18
IL254803A (en) 2018-01-01

Similar Documents

Publication Publication Date Title
EA202090883A1 (ru) Специально разработанное распределенное усиление для измерений с помощью волоконных линий
EP2770370A3 (en) A supercontinuum source
MX2020004280A (es) Analisis no invasivo de sustancias.
WO2014155400A3 (en) Apparatus for interrogating distributed stimulated brillouin scattering optical fibre sensors using a quickly tuneable brillouin ring laser
GB2537248A (en) Fiber optic distributed acoustic measurements via FMCW interrogation
CR20110681A (es) Sistema de tomografía de coherencia óptica intravascular con accesorios e interfaz de monitoreo de presión
EP2402736A3 (en) Multiple wavelength cavity ring down gas sensor
BR112015015950A2 (pt) sistemas e métodos do sensor de deformação a laser em fibra com realimentação distribuída para monitoramento de campo em de subsuperfície
EP2770298A3 (en) Method and system for detecting optical ring resonator resonance frequencies and free spectral range to reduce the number of lasers in a resonator fiber optic gyroscope
GB2535029A (en) Acoustic sensing system and method of acoustically monitoring a tool
GB0601154D0 (en) High power short optical pulse source
AU2017101905A4 (en) Array laser radar light splitting device and light splitting method thereof
WO2014142832A8 (en) Coupled ring resonator system
WO2018186920A3 (en) Tandem pumped fiber laser or fiber amplifier
CN103364106A (zh) 一种基于超长环形激光泵浦的布里渊光时域分析传感系统
MX2019006812A (es) Aparato de prueba de fibra optica combinado con medicion de luz y deteccion de defectos.
RU2013155483A (ru) Датчик и способ измерения
WO2013175387A4 (en) Generation of narrow line width high power optical pulses
WO2015122375A3 (ja) レーザ光源装置及びレーザパルス光生成方法
WO2008096863A1 (ja) ファイバレーザ
WO2019030713A3 (zh) 光学模块及掺铒光纤放大器
CN104269723A (zh) 一种分区型分布式光纤信号放大方法
TW200713723A (en) Multi-wavelength semiconductor laser device
GB201211559D0 (en) Method and apparatus for determining optical fibre characteristics
CN104319624A (zh) 一种超辐射发光二极管光源功率波动的补偿装置和方法