JPH0563745B2 - - Google Patents

Info

Publication number
JPH0563745B2
JPH0563745B2 JP1076078A JP7607889A JPH0563745B2 JP H0563745 B2 JPH0563745 B2 JP H0563745B2 JP 1076078 A JP1076078 A JP 1076078A JP 7607889 A JP7607889 A JP 7607889A JP H0563745 B2 JPH0563745 B2 JP H0563745B2
Authority
JP
Japan
Prior art keywords
lens
light
fiber
section
light transmitting
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.)
Expired - Lifetime
Application number
JP1076078A
Other languages
English (en)
Japanese (ja)
Other versions
JPH02253166A (ja
Inventor
Juji Ikeda
Takeshi Nakajima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Priority to JP1076078A priority Critical patent/JPH02253166A/ja
Priority to DK90102768.0T priority patent/DK0389771T3/da
Priority to DE69007519T priority patent/DE69007519T2/de
Priority to EP90102768A priority patent/EP0389771B1/en
Priority to US07/486,483 priority patent/US5013928A/en
Publication of JPH02253166A publication Critical patent/JPH02253166A/ja
Publication of JPH0563745B2 publication Critical patent/JPH0563745B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
    • G02B6/422—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements
    • G02B6/4226—Positioning means for moving the elements into alignment, e.g. alignment screws, deformation of the mount
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/26—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting optical wave
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Multimedia (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Measuring Volume Flow (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
JP1076078A 1989-03-27 1989-03-27 光ファイバレーザドップラ流速計の光学装置 Granted JPH02253166A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1076078A JPH02253166A (ja) 1989-03-27 1989-03-27 光ファイバレーザドップラ流速計の光学装置
DK90102768.0T DK0389771T3 (da) 1989-03-27 1990-02-13 Optisk anordning ved en fiberlaser Dopplerhastighedsmåler
DE69007519T DE69007519T2 (de) 1989-03-27 1990-02-13 Optische Bestandteile für einen faseroptischen Laserdopplergeschwindigkeitsmesser.
EP90102768A EP0389771B1 (en) 1989-03-27 1990-02-13 Optical equipment of fiber laser Doppler velocimeter
US07/486,483 US5013928A (en) 1989-03-27 1990-02-28 Optical equipment of fiber laser Doppler velocimeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1076078A JPH02253166A (ja) 1989-03-27 1989-03-27 光ファイバレーザドップラ流速計の光学装置

Publications (2)

Publication Number Publication Date
JPH02253166A JPH02253166A (ja) 1990-10-11
JPH0563745B2 true JPH0563745B2 (enExample) 1993-09-13

Family

ID=13594777

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1076078A Granted JPH02253166A (ja) 1989-03-27 1989-03-27 光ファイバレーザドップラ流速計の光学装置

Country Status (5)

Country Link
US (1) US5013928A (enExample)
EP (1) EP0389771B1 (enExample)
JP (1) JPH02253166A (enExample)
DE (1) DE69007519T2 (enExample)
DK (1) DK0389771T3 (enExample)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5272513A (en) * 1991-12-06 1993-12-21 Optical Air Data Systems, L.P. Laser doppler velocimeter
US5241368A (en) * 1991-01-07 1993-08-31 Custom Sample Systems, Inc. Fiber-optic probe for absorbance and turbidity measurement
US5202558A (en) * 1992-03-04 1993-04-13 Barker Lynn M Flexible fiber optic probe for high-pressure shock experiments
JP3612183B2 (ja) * 1997-09-08 2005-01-19 健 中島 光ファイバレーザドップラ流速計及びその光学パラメータ決定方法
WO2000019212A2 (en) 1998-09-28 2000-04-06 California Institute Of Technology Miniature optical sensor
FR2818752A1 (fr) * 2000-12-21 2002-06-28 Thomson Csf Anemometre a laser
WO2007061543A2 (en) * 2005-11-18 2007-05-31 Lockheed Martin Corporation Compact collimator lens form for large mode area and low numerical aperture fiber laser applications
KR20110018298A (ko) * 2008-04-30 2011-02-23 옵티칼 에어 데이터 시스템즈, 엘엘씨 레이저 도플러 속도계
EP2531861A1 (en) * 2010-02-05 2012-12-12 Catch The Wind, Inc. High-density wind velocity data collection for wind turbine
US20120057172A1 (en) * 2010-09-08 2012-03-08 Andrei Brunfeld Optical measuring system with illumination provided through a void in a collecting lens
US8508723B2 (en) 2011-02-14 2013-08-13 Optical Air Data Systems, Llc Laser wind velocimeter with multiple radiation sources
US8961181B2 (en) 2011-12-23 2015-02-24 Optical Air Data Systems, Llc LDV system for improving the aim of a shooter
US8879051B2 (en) 2011-12-23 2014-11-04 Optical Air Data Systems, Llc High power laser doppler velocimeter with multiple amplification stages
US8908160B2 (en) 2011-12-23 2014-12-09 Optical Air Data Systems, Llc Optical air data system suite of sensors
JP2014073526A (ja) * 2012-10-05 2014-04-24 Mitsubishi Heavy Ind Ltd 光学系及びレーザ加工装置
US8711336B1 (en) 2012-11-01 2014-04-29 National Security Technologies, Llc Multipoint photonic doppler velocimetry using optical lens elements
JP5963087B2 (ja) * 2012-12-19 2016-08-03 イマジニアリング株式会社 計測器具、計測システム、及び計測方法
US9121861B2 (en) 2013-03-15 2015-09-01 National Security Technologies, Llc Photonic Doppler velocimetry lens array probe incorporating stereo imaging
WO2015058209A1 (en) 2013-10-18 2015-04-23 Tramontane Technologies, Inc. Amplified optical circuit
CN104142498A (zh) * 2014-08-01 2014-11-12 北京理工大学 一种新型相干测风激光雷达扩束器
GB201415783D0 (en) * 2014-09-05 2014-10-22 Malvern Instr Ltd Particle characterisation
US10408676B2 (en) 2015-10-01 2019-09-10 Mission Support and Test Services, LLC Long-pulse-width variable-wavelength chirped pulse generator and method
FR3049710B1 (fr) * 2016-03-31 2020-06-19 Unity Semiconductor Procede et systeme d'inspection par effet doppler laser de plaquettes pour la microelectronique ou l'optique
CN105717320B (zh) * 2016-04-11 2018-10-26 中国工程物理研究院流体物理研究所 空腔式动量传感器
CN110716064B (zh) * 2019-10-12 2024-08-06 中国科学院西安光学精密机械研究所 一种应用于光纤多普勒测速仪的大景深光学天线装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1615391A1 (de) * 1967-03-16 1970-05-21 Siemens Ag Optische Einrichtung fuer Bearbeitungslaser
GB2158605A (en) * 1984-05-11 1985-11-13 Lescrenier Charles Optical fiber coupling device
DD243123A1 (de) * 1985-12-02 1987-02-18 Zeiss Jena Veb Carl Anordnung zur einkopplung eines laserstrahles in eine glasfaser
DE3631900A1 (de) * 1986-09-19 1988-04-07 Deutsche Forsch Luft Raumfahrt Vorrichtung zur messung von stroemungsvektoren in gasstroemungen
DE3637235A1 (de) * 1986-11-03 1988-05-05 Honeywell Elac Nautik Gmbh Laser-doppler-anemometer
DK158169C (da) * 1987-08-31 1990-09-03 Dantec Elektronik Med Indkoblingsmanipulator for laserlys til en optisk fiber

Also Published As

Publication number Publication date
EP0389771B1 (en) 1994-03-23
DE69007519D1 (de) 1994-04-28
EP0389771A2 (en) 1990-10-03
DK0389771T3 (da) 1994-07-25
EP0389771A3 (en) 1992-07-08
DE69007519T2 (de) 1994-08-25
JPH02253166A (ja) 1990-10-11
US5013928A (en) 1991-05-07

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