DK80391D0 - Interferometer - Google Patents
InterferometerInfo
- Publication number
- DK80391D0 DK80391D0 DK91803A DK80391A DK80391D0 DK 80391 D0 DK80391 D0 DK 80391D0 DK 91803 A DK91803 A DK 91803A DK 80391 A DK80391 A DK 80391A DK 80391 D0 DK80391 D0 DK 80391D0
- Authority
- DK
- Denmark
- Prior art keywords
- interferometer
- Prior art date
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
- G01J9/02—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods
-
- 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
- G01D5/35303—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 a reference fibre, e.g. interferometric devices
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/21—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour by interference
- G02F1/225—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour by interference in an optical waveguide structure
- G02F1/2252—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour by interference in an optical waveguide structure in optical fibres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
- G01J9/02—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods
- G01J2009/0226—Fibres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
- G01J9/02—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods
- G01J2009/0226—Fibres
- G01J2009/023—Fibres of the integrated optical type
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Instruments For Measurement Of Length By Optical Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB888825481A GB8825481D0 (en) | 1988-11-01 | 1988-11-01 | Interferrometer |
PCT/GB1989/001304 WO1990005282A1 (en) | 1988-11-01 | 1989-11-01 | Interferometer |
Publications (2)
Publication Number | Publication Date |
---|---|
DK80391D0 true DK80391D0 (da) | 1991-04-30 |
DK80391A DK80391A (da) | 1991-04-30 |
Family
ID=10646077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK080391A DK80391A (da) | 1988-11-01 | 1991-04-30 | Interferometer |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0376449A1 (da) |
JP (1) | JPH04501608A (da) |
KR (1) | KR900702329A (da) |
AU (1) | AU617556B2 (da) |
CA (1) | CA2001914A1 (da) |
DK (1) | DK80391A (da) |
GB (1) | GB8825481D0 (da) |
WO (1) | WO1990005282A1 (da) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW296430B (da) * | 1994-11-21 | 1997-01-21 | Akzo Nobel Nv | |
US5615037A (en) * | 1995-01-17 | 1997-03-25 | Massachusetts Institute Of Technology | Sub-octave bandpass optical remote antenna link modulator and method therefor |
GB2308222B (en) * | 1995-12-16 | 1997-11-12 | Northern Telecom Ltd | Gain clamped amplifier |
WO1999010761A2 (de) * | 1997-08-22 | 1999-03-04 | HEINRICH-HERTZ-INSTITUT FüR NACHRICHTENTECHNIK BERLIN GMBH | Quasi-rechteck-filter |
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 |
CA2311966A1 (en) * | 1999-06-23 | 2000-12-23 | Stavros Dariotis | Optical fiber mach-zehnder interferometer employing miniature bends |
DE19935908C1 (de) * | 1999-07-30 | 2000-09-07 | Siemens Ag | Bragg-Gitter-Sensoranordnung zur Abtastung einer physikalischen Größe und Verfahren zu deren Betrieb |
AU1794101A (en) * | 1999-11-23 | 2001-06-04 | Nanovation Technologies, Inc. | Optical mach-zehnder switch with movable phase shifter |
TWI245880B (en) * | 1999-11-23 | 2005-12-21 | L3 Optics Inc | Digital optical switches using an integrated Mach-Zehnder interferometer having a movable phase shifter |
US6430322B1 (en) * | 1999-11-23 | 2002-08-06 | L3 Optics, Inc. | Optical phase shifter having an integrated planar optical waveguide and phase shifter element |
CA2392404A1 (en) * | 1999-11-23 | 2001-05-31 | Nanovation Technologies, Inc. | Analog optical switch using an integrated mach-zehnder interferometer having a movable phase shifter |
DE10033820A1 (de) | 2000-07-12 | 2002-02-07 | Adalbert Bandemer | Emulator für PMD 2.ter Ordnung |
DE10191854D2 (de) * | 2000-05-06 | 2003-05-08 | Profile Optische Systeme Gmbh | Emulator für PMD Ordnung |
US6728315B2 (en) | 2002-07-24 | 2004-04-27 | Apple Computer, Inc. | Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding with reduced requirements for division operations |
US7667849B2 (en) | 2003-09-30 | 2010-02-23 | British Telecommunications Public Limited Company | Optical sensor with interferometer for sensing external physical disturbance of optical communications link |
GB0322859D0 (en) | 2003-09-30 | 2003-10-29 | British Telecomm | Communication |
GB0407386D0 (en) | 2004-03-31 | 2004-05-05 | British Telecomm | Monitoring a communications link |
WO2006035198A1 (en) | 2004-09-30 | 2006-04-06 | British Telecommunications Public Limited Company | Identifying or locating waveguides |
GB0421747D0 (en) | 2004-09-30 | 2004-11-03 | British Telecomm | Distributed backscattering |
GB0427733D0 (en) | 2004-12-17 | 2005-01-19 | British Telecomm | Optical system |
KR20070095909A (ko) | 2004-12-17 | 2007-10-01 | 브리티쉬 텔리커뮤니케이션즈 파블릭 리미티드 캄퍼니 | 네트워크 평가 방법 |
WO2006092606A1 (en) | 2005-03-04 | 2006-09-08 | British Telecommunications Public Limited Company | Acousto-optical modulator arrangement |
GB0504579D0 (en) | 2005-03-04 | 2005-04-13 | British Telecomm | Communications system |
EP1708388A1 (en) | 2005-03-31 | 2006-10-04 | British Telecommunications Public Limited Company | Communicating information |
EP1713301A1 (en) | 2005-04-14 | 2006-10-18 | BRITISH TELECOMMUNICATIONS public limited company | Method and apparatus for communicating sound over an optical link |
EP1729096A1 (en) | 2005-06-02 | 2006-12-06 | BRITISH TELECOMMUNICATIONS public limited company | Method and apparatus for determining the position of a disturbance in an optical fibre |
US7961331B2 (en) | 2006-02-24 | 2011-06-14 | British Telecommunications Public Limited Company | Sensing a disturbance along an optical path |
EP1826924A1 (en) | 2006-02-24 | 2007-08-29 | BRITISH TELECOMMUNICATIONS public limited company | Sensing a disturbance |
CA2643344A1 (en) | 2006-02-24 | 2007-08-30 | British Telecommunications Public Limited Company | Sensing a disturbance |
US8670662B2 (en) | 2006-04-03 | 2014-03-11 | British Telecommunications Public Limited Company | Evaluating the position of an optical fiber disturbance |
CN101625258B (zh) * | 2009-08-05 | 2012-03-21 | 上海华魏光纤传感技术有限公司 | 基于马赫-泽德干涉仪的光纤振动传感***及传感方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3589794A (en) * | 1968-08-07 | 1971-06-29 | Bell Telephone Labor Inc | Optical circuits |
DE3014719A1 (de) * | 1980-04-17 | 1981-10-22 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Anordnung zum polarisationsabhaengigen schalten von lichtwellen |
US4725141A (en) * | 1984-08-22 | 1988-02-16 | The General Electric Company, P.L.C. | Interferometers |
GB8613192D0 (en) * | 1986-05-30 | 1986-07-02 | British Telecomm | Optical resonating device |
US4753529A (en) * | 1986-06-23 | 1988-06-28 | Litton Systems, Inc. | Apparatus and method for precision adjustment of interferometer pathlength difference |
GB8829546D0 (en) * | 1988-12-19 | 1989-02-08 | British Telecomm | Non-linear interferometer |
-
1988
- 1988-11-01 GB GB888825481A patent/GB8825481D0/en active Pending
-
1989
- 1989-10-31 CA CA002001914A patent/CA2001914A1/en not_active Abandoned
- 1989-11-01 JP JP1511689A patent/JPH04501608A/ja active Pending
- 1989-11-01 EP EP89311299A patent/EP0376449A1/en not_active Withdrawn
- 1989-11-01 WO PCT/GB1989/001304 patent/WO1990005282A1/en unknown
- 1989-11-01 AU AU45139/89A patent/AU617556B2/en not_active Ceased
- 1989-11-01 KR KR1019900701375A patent/KR900702329A/ko not_active Application Discontinuation
-
1991
- 1991-04-30 DK DK080391A patent/DK80391A/da not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
AU617556B2 (en) | 1991-11-28 |
EP0376449A1 (en) | 1990-07-04 |
AU4513989A (en) | 1990-05-28 |
CA2001914A1 (en) | 1990-05-01 |
JPH04501608A (ja) | 1992-03-19 |
GB8825481D0 (en) | 1988-12-07 |
WO1990005282A1 (en) | 1990-05-17 |
DK80391A (da) | 1991-04-30 |
KR900702329A (ko) | 1990-12-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AHB | Application shelved due to non-payment |