JPH0236195B2 - - Google Patents
Info
- Publication number
- JPH0236195B2 JPH0236195B2 JP57223102A JP22310282A JPH0236195B2 JP H0236195 B2 JPH0236195 B2 JP H0236195B2 JP 57223102 A JP57223102 A JP 57223102A JP 22310282 A JP22310282 A JP 22310282A JP H0236195 B2 JPH0236195 B2 JP H0236195B2
- Authority
- JP
- Japan
- Prior art keywords
- ripple
- waveguide
- transducer
- hydrophone
- hydrophones
- 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
Links
- 239000000835 fiber Substances 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 description 16
- 239000013307 optical fiber Substances 0.000 description 16
- 239000011295 pitch Substances 0.000 description 16
- 230000035945 sensitivity Effects 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000035559 beat frequency Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002839 fiber optic waveguide Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000382 optic material Substances 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/14—Mode converters
-
- 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
-
- 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
- G02B6/4286—Optical modules with optical power monitoring
-
- 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
- G02B6/4287—Optical modules with tapping or launching means through the surface of the waveguide
- G02B6/4289—Optical modules with tapping or launching means through the surface of the waveguide by inducing bending, microbending or macrobending, to the light guide
-
- 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
- G02B6/4251—Sealed packages
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Optical Communication System (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US332791 | 1981-12-21 | ||
| US06/332,791 US4449210A (en) | 1981-12-21 | 1981-12-21 | Fiber optic hydrophone transducers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58113873A JPS58113873A (ja) | 1983-07-06 |
| JPH0236195B2 true JPH0236195B2 (enExample) | 1990-08-15 |
Family
ID=23299867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57223102A Granted JPS58113873A (ja) | 1981-12-21 | 1982-12-21 | 水中聴音装置用変換器 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4449210A (enExample) |
| EP (1) | EP0082604A1 (enExample) |
| JP (1) | JPS58113873A (enExample) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4524436A (en) * | 1981-05-15 | 1985-06-18 | Schlumberger Technology Corporation | Pressure wave fiber optic transducer cable |
| US4530078A (en) * | 1982-06-11 | 1985-07-16 | Nicholas Lagakos | Microbending fiber optic acoustic sensor |
| US4519252A (en) * | 1983-03-21 | 1985-05-28 | Sperry Corporation | Pressure and temperature compensated photoelastic hydrophone |
| US4792207A (en) * | 1983-11-30 | 1988-12-20 | The Board Of Trustees Of The Leland Stanford Junior University | Single mode fiber optic single sideband modulator and method of frequency shifting using same |
| US4684215A (en) * | 1983-11-30 | 1987-08-04 | The Board Of Trustees Of The Leland Stanford Junior University | Single mode fiber optic single sideband modulator and method of frequency |
| US4560016A (en) * | 1983-12-14 | 1985-12-24 | Anco Engineers, Incorporated | Method and apparatus for measuring the weight of a vehicle while the vehicle is in motion |
| GB2155621B (en) * | 1984-03-06 | 1988-01-06 | Standard Telephones Cables Ltd | Optical fibre sensors |
| GB2161609B (en) * | 1984-07-11 | 1987-10-07 | Stc Plc | Optical fibres |
| US4714314A (en) * | 1985-02-06 | 1987-12-22 | The United States Of America As Represented By The Secretary Of The Air Force | Mode dependent, optical time delay system for electrical signals |
| US4705347A (en) * | 1985-10-31 | 1987-11-10 | Raychem Corp. | Optical fiber coupler |
| US4678903A (en) * | 1986-01-27 | 1987-07-07 | General Motors Corporation | Self aligning fiber optic microbend sensor |
| US4751690A (en) * | 1986-05-12 | 1988-06-14 | Gould Inc. | Fiber optic interferometric hydrophone |
| GB2204679A (en) * | 1987-04-30 | 1988-11-16 | Univ Manchester | Fibre optic sensor |
| US4891511A (en) * | 1988-08-31 | 1990-01-02 | The Babcock & Wilcox Co. | Fiber optic microbend sensor with braided fibers |
| DE69023799T2 (de) * | 1989-04-19 | 1996-07-11 | Bestquint Ltd | Lichtleiter-Messfühler. |
| US5015842A (en) * | 1989-06-01 | 1991-05-14 | United Technologies Corporation | High density fiber optic damage detection system |
| US5140559A (en) * | 1991-02-21 | 1992-08-18 | The United States Of America As Represented By The Secretary Of The Navy | Low flow-noise conformal fiber optic hydrophone |
| US5155707A (en) * | 1991-11-26 | 1992-10-13 | The United States Of America As Represented By The Secretary Of The Navy | Omni-directional hydrophone |
| US5311614A (en) * | 1992-03-31 | 1994-05-10 | The Whitaker Corporation | Single mode fiber optic variable attenuator with supported optical fiber |
| US5271675A (en) * | 1992-10-22 | 1993-12-21 | Gas Research Institute | System for characterizing pressure, movement, temperature and flow pattern of fluids |
| US6429421B1 (en) | 2000-01-21 | 2002-08-06 | Luna Innovations, Inc. | Flexible fiber optic microbend device, with interlocking flexible fibers, sensors, and method use |
| US6408117B1 (en) | 2000-04-05 | 2002-06-18 | Lucent Technologies Inc. | Mechanically induced long period optical fiber gratings |
| KR100416453B1 (ko) * | 2001-06-29 | 2004-01-31 | 학교법인 성균관대학 | 샘플된 광섬유격자 필터 및 이를 이용한 광섬유격자시스템 |
| KR100420940B1 (ko) * | 2001-08-03 | 2004-03-04 | 학교법인 성균관대학 | 편광모드 분산방지 광섬유격자 가변장치 및 이의 응용 |
| CN101776784B (zh) * | 2009-01-13 | 2011-08-24 | 电子科技大学 | 一种2×2长周期光纤光栅耦合器 |
| CN101660939B (zh) * | 2009-09-25 | 2012-06-06 | 暨南大学 | 光纤声压传感器 |
| CN101881633B (zh) * | 2010-04-06 | 2012-11-28 | 西安金和光学科技有限公司 | 基于光纤弯曲损耗的弹簧型高精度光纤传感器 |
| CN102262241A (zh) * | 2011-04-27 | 2011-11-30 | 暨南大学 | 光纤地震检波器 |
| EP3044554B1 (en) * | 2013-09-13 | 2023-04-19 | Silixa Ltd. | Fibre optic cable for a distributed acoustic sensing system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2991347A (en) * | 1959-12-14 | 1961-07-04 | Hoffman Electronics Corp | Magnetic jig for alloying |
| US3107310A (en) * | 1960-08-03 | 1963-10-15 | Const Mecanique | Magnetic coupling having a magnetic bearing |
| US3152716A (en) * | 1961-08-02 | 1964-10-13 | Expandolite Inc | Container |
| US3831137A (en) * | 1972-04-14 | 1974-08-20 | Us Navy | Acousto-optic underwater detector |
| US4071753A (en) * | 1975-03-31 | 1978-01-31 | Gte Laboratories Incorporated | Transducer for converting acoustic energy directly into optical energy |
| IT1107327B (it) * | 1978-04-26 | 1985-11-25 | Cselt Centro Studi Lab Telecom | Onnettore magnetico per cavi ottici |
| JPS5545051A (en) * | 1978-09-28 | 1980-03-29 | Nippon Telegr & Teleph Corp <Ntt> | Multicore connector of optical fiber |
| US4294513A (en) * | 1979-09-11 | 1981-10-13 | Hydroacoustics Inc. | Optical sensor system |
| EP0027540A3 (en) * | 1979-09-11 | 1981-10-07 | Hydroacoustics Inc. | Optical sensor and transducer array system |
| US4313192A (en) * | 1979-09-11 | 1982-01-26 | Hydroacoustics, Inc. | Optical transducer array system |
-
1981
- 1981-12-21 US US06/332,791 patent/US4449210A/en not_active Expired - Lifetime
-
1982
- 1982-11-25 EP EP82306290A patent/EP0082604A1/en not_active Withdrawn
- 1982-12-21 JP JP57223102A patent/JPS58113873A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58113873A (ja) | 1983-07-06 |
| EP0082604A1 (en) | 1983-06-29 |
| US4449210A (en) | 1984-05-15 |
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