WO2004111661A3 - System and method for low coherence broadband quadrature interferometry - Google Patents

System and method for low coherence broadband quadrature interferometry Download PDF

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Publication number
WO2004111661A3
WO2004111661A3 PCT/US2004/016744 US2004016744W WO2004111661A3 WO 2004111661 A3 WO2004111661 A3 WO 2004111661A3 US 2004016744 W US2004016744 W US 2004016744W WO 2004111661 A3 WO2004111661 A3 WO 2004111661A3
Authority
WO
WIPO (PCT)
Prior art keywords
interferometric
components
low coherence
interferometer
detector signals
Prior art date
Application number
PCT/US2004/016744
Other languages
French (fr)
Other versions
WO2004111661A2 (en
Inventor
Michael A Choma
Changheui Yang
Joseph A Izatt
Original Assignee
Univ Duke
Michael A Choma
Changheui Yang
Joseph A Izatt
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 Univ Duke, Michael A Choma, Changheui Yang, Joseph A Izatt filed Critical Univ Duke
Priority to EP04753560A priority Critical patent/EP1644697A4/en
Publication of WO2004111661A2 publication Critical patent/WO2004111661A2/en
Publication of WO2004111661A3 publication Critical patent/WO2004111661A3/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/02001—Interferometers characterised by controlling or generating intrinsic radiation properties
    • G01B9/02002—Interferometers characterised by controlling or generating intrinsic radiation properties using two or more frequencies
    • G01B9/02004—Interferometers characterised by controlling or generating intrinsic radiation properties using two or more frequencies using frequency scans
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/02001—Interferometers characterised by controlling or generating intrinsic radiation properties
    • G01B9/02002—Interferometers characterised by controlling or generating intrinsic radiation properties using two or more frequencies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/02041—Interferometers characterised by particular imaging or detection techniques
    • G01B9/02044—Imaging in the frequency domain, e.g. by using a spectrometer
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/02055—Reduction or prevention of errors; Testing; Calibration
    • G01B9/02075—Reduction or prevention of errors; Testing; Calibration of particular errors
    • G01B9/02078—Caused by ambiguity
    • G01B9/02079—Quadrature detection, i.e. detecting relatively phase-shifted signals
    • G01B9/02081—Quadrature detection, i.e. detecting relatively phase-shifted signals simultaneous quadrature detection, e.g. by spatial phase shifting
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/0209—Low-coherence interferometers
    • G01B9/02091—Tomographic interferometers, e.g. based on optical coherence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/4795—Scattering, i.e. diffuse reflection spatially resolved investigating of object in scattering medium
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2290/00—Aspects of interferometers not specifically covered by any group under G01B9/02
    • G01B2290/45—Multiple detectors for detecting interferometer signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2290/00—Aspects of interferometers not specifically covered by any group under G01B9/02
    • G01B2290/70—Using polarization in the interferometer

Abstract

A quadrature broadband interferometry system and method obtains a complete complex interferometric signal instantaneously in both homodyne and heterodyne systems in a simple, compact, and inexpensive setup. This is accomplished by separating interferometric components from non-interferometric components in each of at least two detector signals of an interferometer having a number of NxN couplers, scaling the interferometric components, and generating real and imaginary parts of a complex interferometric signal from the scaled interferometric components. The detector signals preferably derive from a broadband light source coupled to the interferometer, and the number of NxN couplers may be one or more, with N ≥ 3.
PCT/US2004/016744 2003-05-30 2004-05-27 System and method for low coherence broadband quadrature interferometry WO2004111661A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04753560A EP1644697A4 (en) 2003-05-30 2004-05-27 System and method for low coherence broadband quadrature interferometry

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47422203P 2003-05-30 2003-05-30
US60/474,222 2003-05-30

Publications (2)

Publication Number Publication Date
WO2004111661A2 WO2004111661A2 (en) 2004-12-23
WO2004111661A3 true WO2004111661A3 (en) 2005-05-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/016744 WO2004111661A2 (en) 2003-05-30 2004-05-27 System and method for low coherence broadband quadrature interferometry

Country Status (3)

Country Link
US (1) US7019838B2 (en)
EP (1) EP1644697A4 (en)
WO (1) WO2004111661A2 (en)

Families Citing this family (129)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1434522B1 (en) 2000-10-30 2010-01-13 The General Hospital Corporation Optical systems for tissue analysis
US9295391B1 (en) 2000-11-10 2016-03-29 The General Hospital Corporation Spectrally encoded miniature endoscopic imaging probe
AT503309B1 (en) 2001-05-01 2011-08-15 Gen Hospital Corp DEVICE FOR DETERMINING ATHEROSCLEROTIC BEARING BY MEASURING OPTICAL TISSUE PROPERTIES
US7355716B2 (en) * 2002-01-24 2008-04-08 The General Hospital Corporation Apparatus and method for ranging and noise reduction of low coherence interferometry LCI and optical coherence tomography OCT signals by parallel detection of spectral bands
US20110201924A1 (en) * 2002-04-30 2011-08-18 The General Hospital Corporation Method and Apparatus for Improving Image Clarity and Sensitivity in Optical Tomography Using Dynamic Feedback to Control Focal Properties and Coherence Gating
US7643153B2 (en) * 2003-01-24 2010-01-05 The General Hospital Corporation Apparatus and method for ranging and noise reduction of low coherence interferometry LCI and optical coherence tomography OCT signals by parallel detection of spectral bands
US7567349B2 (en) 2003-03-31 2009-07-28 The General Hospital Corporation Speckle reduction in optical coherence tomography by path length encoded angular compounding
WO2004111929A2 (en) * 2003-05-28 2004-12-23 Duke University Improved system for fourier domain optical coherence tomography
KR20130138867A (en) 2003-06-06 2013-12-19 더 제너럴 하스피탈 코포레이션 Process and apparatus for a wavelength tunning source
US7068374B2 (en) * 2003-06-09 2006-06-27 Agilent Technologies, Inc. Phase-diverse coherent optical spectrum analyzer
CN103181754A (en) * 2003-10-27 2013-07-03 通用医疗公司 Method and apparatus for performing optical imaging using frequency-domain interferometry
US20050254065A1 (en) * 2004-05-12 2005-11-17 Stokowski Stanley E Method and apparatus for detecting surface characteristics on a mask blank
WO2005117534A2 (en) 2004-05-29 2005-12-15 The General Hospital Corporation Process, system and software arrangement for a chromatic dispersion compensation using reflective layers in optical coherence tomography (oct) imaging
US7447408B2 (en) 2004-07-02 2008-11-04 The General Hospital Corproation Imaging system and related techniques
US8081316B2 (en) * 2004-08-06 2011-12-20 The General Hospital Corporation Process, system and software arrangement for determining at least one location in a sample using an optical coherence tomography
EP1793730B1 (en) 2004-08-24 2011-12-28 The General Hospital Corporation Process, system and software arrangement for determining elastic modulus
KR20120062944A (en) 2004-08-24 2012-06-14 더 제너럴 하스피탈 코포레이션 Method and apparatus for imaging of vessel segments
US20060061769A1 (en) * 2004-09-03 2006-03-23 California Institute Of Technology Homodyne based optical coherence microscope
KR101269455B1 (en) 2004-09-10 2013-05-30 더 제너럴 하스피탈 코포레이션 System and method for optical coherence imaging
JP4997112B2 (en) 2004-09-29 2012-08-08 ザ ジェネラル ホスピタル コーポレイション Apparatus for transmitting at least one electromagnetic radiation and method of manufacturing the same
US7385460B1 (en) 2004-11-17 2008-06-10 California Institute Of Technology Combined electrostatic and optical waveguide based microfluidic chip systems and methods
US7388672B2 (en) * 2004-11-19 2008-06-17 Carl Ziess Meditec, Inc. High efficiency balanced detection interferometer
US7995210B2 (en) 2004-11-24 2011-08-09 The General Hospital Corporation Devices and arrangements for performing coherence range imaging using a common path interferometer
EP1816949A1 (en) 2004-11-29 2007-08-15 The General Hospital Corporation Arrangements, devices, endoscopes, catheters and methods for performing optical imaging by simultaneously illuminating and detecting multiple points on a sample
US7336366B2 (en) * 2005-01-20 2008-02-26 Duke University Methods and systems for reducing complex conjugate ambiguity in interferometric data
US7456957B2 (en) * 2005-08-03 2008-11-25 Carl Zeiss Meditec, Inc. Littrow spectrometer and a spectral domain optical coherence tomography system with a Littrow spectrometer
US7342659B2 (en) * 2005-01-21 2008-03-11 Carl Zeiss Meditec, Inc. Cross-dispersed spectrometer in a spectral domain optical coherence tomography system
US7369953B2 (en) 2005-03-17 2008-05-06 The Board Of Trustees Of The Leland Stanford Junior University Femtosecond spectroscopy using minimum phase functions
EP2461131B1 (en) 2005-03-17 2017-08-09 The Board of Trustees of The Leland Stanford Junior University Apparatus and method for frequency-domain optical coherence tomography
US7106923B1 (en) * 2005-03-31 2006-09-12 Lucent Technologies, Inc Dispersion compensator
WO2006107795A1 (en) 2005-04-05 2006-10-12 The Board Of Trustees Of The Leland Stanford Junior University Optical image processing using minimum phase functions
JP2008538612A (en) * 2005-04-22 2008-10-30 ザ ジェネラル ホスピタル コーポレイション Configuration, system, and method capable of providing spectral domain polarization sensitive optical coherence tomography
EP1875436B1 (en) 2005-04-28 2009-12-09 The General Hospital Corporation Evaluation of image features of an anatomical structure in optical coherence tomography images
WO2006124860A1 (en) * 2005-05-13 2006-11-23 The General Hospital Corporation Arrangements, systems and methods capable of providing spectral-domain optical coherence reflectometry for a sensitive detection of chemical and biological sample
JP5702049B2 (en) * 2005-06-01 2015-04-15 ザ ジェネラル ホスピタル コーポレイション Apparatus, method and system for performing phase resolved optical frequency domain imaging
WO2007008788A2 (en) * 2005-07-08 2007-01-18 Imalux Corporation Common-path frequency-domain optical coherence reflectometer and optical coherence tomography device
ES2354287T3 (en) * 2005-08-09 2011-03-11 The General Hospital Corporation APPARATUS AND METHOD FOR PERFORMING A DEMODULATION IN QUADRATURE BY POLARIZATION IN OPTICAL COHERENCE TOMOGRAPHY.
JP6046325B2 (en) * 2005-09-29 2016-12-14 ザ ジェネラル ホスピタル コーポレイション Method and apparatus for the observation and analysis of one or more biological samples with progressively increased resolution
JP2007101264A (en) * 2005-09-30 2007-04-19 Fujifilm Corp Optical tomographic imaging device
US7889348B2 (en) 2005-10-14 2011-02-15 The General Hospital Corporation Arrangements and methods for facilitating photoluminescence imaging
GB2432067A (en) * 2005-11-02 2007-05-09 Oti Ophthalmic Technologies Optical coherence tomography depth scanning with varying reference path difference over imaging array
US7944567B2 (en) * 2005-12-05 2011-05-17 Fujifilm Corporation Semiconductor light emitting element, light source using the semiconductor light emitting element, and optical tomography imaging apparatus
WO2007082228A1 (en) * 2006-01-10 2007-07-19 The General Hospital Corporation Systems and methods for generating data based on one or more spectrally-encoded endoscopy techniques
CN104257348A (en) 2006-01-19 2015-01-07 通用医疗公司 Methods And Systems For Optical Imaging Of Epithelial Luminal Organs By Beam Scanning Thereof
WO2007084903A2 (en) 2006-01-19 2007-07-26 The General Hospital Corporation Apparatus for obtaining information for a structure using spectrally-encoded endoscopy techniques and method for producing one or more optical arrangements
US20070171433A1 (en) * 2006-01-20 2007-07-26 The General Hospital Corporation Systems and processes for providing endogenous molecular imaging with mid-infrared light
EP1986545A2 (en) 2006-02-01 2008-11-05 The General Hospital Corporation Apparatus for applying a plurality of electro-magnetic radiations to a sample
JP5524487B2 (en) * 2006-02-01 2014-06-18 ザ ジェネラル ホスピタル コーポレイション A method and system for emitting electromagnetic radiation to at least a portion of a sample using a conformal laser treatment procedure.
EP1988825B1 (en) * 2006-02-08 2016-12-21 The General Hospital Corporation Arrangements and systems for obtaining information associated with an anatomical sample using optical microscopy
WO2007101026A2 (en) 2006-02-24 2007-09-07 The General Hospital Corporation Methods and systems for performing angle-resolved fourier-domain optical coherence tomography
EP2002201A2 (en) * 2006-03-16 2008-12-17 Duke University Methods, systems, and computer program products for performing real-time quadrature projection based fourier domain optical coherence tomography
CN101466298B (en) 2006-04-05 2011-08-31 通用医疗公司 Methods arrangements and systems for polarization-sensitive optical frequency domain imaging of a sample
EP3150110B1 (en) 2006-05-10 2020-09-02 The General Hospital Corporation Processes, arrangements and systems for providing frequency domain imaging of a sample
WO2007133964A2 (en) 2006-05-12 2007-11-22 The General Hospital Corporation Processes, arrangements and systems for providing a fiber layer thickness map based on optical coherence tomography images
US7508523B2 (en) * 2006-07-24 2009-03-24 National Research Council Of Canada Interferometric system for complex image extraction
DE102006034604A1 (en) * 2006-07-24 2008-01-31 Jenoptik Laser, Optik, Systeme Gmbh Optical system for surface measurement
JP2010501877A (en) * 2006-08-25 2010-01-21 ザ ジェネラル ホスピタル コーポレイション Apparatus and method for improving optical coherence tomography imaging capabilities using volumetric filtering techniques
WO2008049118A2 (en) 2006-10-19 2008-04-24 The General Hospital Corporation Apparatus and method for obtaining and providing imaging information associated with at least one portion of a sample and effecting such portion(s)
JP5541831B2 (en) * 2006-12-07 2014-07-09 株式会社トプコン Optical tomographic imaging apparatus and operating method thereof
US7911621B2 (en) * 2007-01-19 2011-03-22 The General Hospital Corporation Apparatus and method for controlling ranging depth in optical frequency domain imaging
EP2104968A1 (en) * 2007-01-19 2009-09-30 The General Hospital Corporation Rotating disk reflection for fast wavelength scanning of dispersed broadband light
WO2008118781A2 (en) 2007-03-23 2008-10-02 The General Hospital Corporation Methods, arrangements and apparatus for utilizing a wavelength-swept laser using angular scanning and dispersion procedures
US10534129B2 (en) 2007-03-30 2020-01-14 The General Hospital Corporation System and method providing intracoronary laser speckle imaging for the detection of vulnerable plaque
WO2008131082A1 (en) * 2007-04-17 2008-10-30 The General Hospital Corporation Apparatus and methods for measuring vibrations using spectrally-encoded endoscopy techniques
WO2009018456A2 (en) 2007-07-31 2009-02-05 The General Hospital Corporation Systems and methods for providing beam scan patterns for high speed doppler optical frequency domain imaging
JP5536650B2 (en) * 2007-08-31 2014-07-02 ザ ジェネラル ホスピタル コーポレイション System and method for self-interfering fluorescence microscopy and associated computer-accessible media
EP2034661A1 (en) * 2007-09-07 2009-03-11 Deutsche Telekom AG Method and system for distributed, localized authentication in the framework of 802.11
DE102007046507A1 (en) * 2007-09-28 2009-04-02 Carl Zeiss Meditec Ag Kurzkoheränz interferometer
US7933021B2 (en) 2007-10-30 2011-04-26 The General Hospital Corporation System and method for cladding mode detection
US7898656B2 (en) * 2008-04-30 2011-03-01 The General Hospital Corporation Apparatus and method for cross axis parallel spectroscopy
EP2274572A4 (en) 2008-05-07 2013-08-28 Gen Hospital Corp System, method and computer-accessible medium for tracking vessel motion during three-dimensional coronary artery microscopy
DE102008028312A1 (en) * 2008-06-13 2009-12-17 Carl Zeiss Meditec Ag SS-OCT interferometry for measuring a sample
DE102008029479A1 (en) * 2008-06-20 2009-12-24 Carl Zeiss Meditec Ag Short-coherence interferometry for distance measurement
JP5795531B2 (en) 2008-06-20 2015-10-14 ザ ジェネラル ホスピタル コーポレイション Fused fiber optic coupler structure and method of using the same
JP5667051B2 (en) 2008-07-14 2015-02-12 ザ ジェネラル ホスピタル コーポレイション Equipment for color endoscopy
EP3330696B1 (en) * 2008-12-10 2023-07-12 The General Hospital Corporation Systems, apparatus and methods for extending imaging depth range of optical coherence tomography through optical sub-sampling
DE102008063225A1 (en) 2008-12-23 2010-07-01 Carl Zeiss Meditec Ag Device for Swept Source Optical Coherence Domain Reflectometry
WO2010090837A2 (en) * 2009-01-20 2010-08-12 The General Hospital Corporation Endoscopic biopsy apparatus, system and method
JP2012515930A (en) * 2009-01-26 2012-07-12 ザ ジェネラル ホスピタル コーポレーション System, method and computer-accessible medium for providing a wide-field super-resolution microscope
US10485422B2 (en) * 2009-02-19 2019-11-26 Manish Dinkarrao Kulkarni System and method for imaging subsurface of specimen
US9351642B2 (en) 2009-03-12 2016-05-31 The General Hospital Corporation Non-contact optical system, computer-accessible medium and method for measurement at least one mechanical property of tissue using coherent speckle technique(s)
US11490826B2 (en) * 2009-07-14 2022-11-08 The General Hospital Corporation Apparatus, systems and methods for measuring flow and pressure within a vessel
WO2011037980A2 (en) 2009-09-22 2011-03-31 Bioptigen, Inc. Systems for extended depth frequency domain optical coherence tomography (fdoct) and related methods
WO2011050249A1 (en) * 2009-10-23 2011-04-28 Bioptigen, Inc. Systems for comprehensive fourier domain optical coherence tomography (fdoct) and related methods
US8804126B2 (en) * 2010-03-05 2014-08-12 The General Hospital Corporation Systems, methods and computer-accessible medium which provide microscopic images of at least one anatomical structure at a particular resolution
US9069130B2 (en) 2010-05-03 2015-06-30 The General Hospital Corporation Apparatus, method and system for generating optical radiation from biological gain media
EP2575598A2 (en) 2010-05-25 2013-04-10 The General Hospital Corporation Apparatus, systems, methods and computer-accessible medium for spectral analysis of optical coherence tomography images
EP2575597B1 (en) 2010-05-25 2022-05-04 The General Hospital Corporation Apparatus for providing optical imaging of structures and compositions
US10285568B2 (en) 2010-06-03 2019-05-14 The General Hospital Corporation Apparatus and method for devices for imaging structures in or at one or more luminal organs
US9510758B2 (en) 2010-10-27 2016-12-06 The General Hospital Corporation Apparatus, systems and methods for measuring blood pressure within at least one vessel
US8854629B2 (en) 2010-11-17 2014-10-07 Finisar Corporation Optical coherence tomography system and method
US9330092B2 (en) 2011-07-19 2016-05-03 The General Hospital Corporation Systems, methods, apparatus and computer-accessible-medium for providing polarization-mode dispersion compensation in optical coherence tomography
CN102322880B (en) * 2011-08-18 2013-06-05 天津大学 Polarization sensitive distributive optical frequency domain reflection disturbance sensor and demodulation method
WO2013029047A1 (en) 2011-08-25 2013-02-28 The General Hospital Corporation Methods, systems, arrangements and computer-accessible medium for providing micro-optical coherence tomography procedures
EP2769491A4 (en) 2011-10-18 2015-07-22 Gen Hospital Corp Apparatus and methods for producing and/or providing recirculating optical delay(s)
US8896841B2 (en) * 2012-03-13 2014-11-25 Kabushiki Kaisha Topcon Optical imaging method and optical imaging apparatus using optical coherence tomography
US9629528B2 (en) 2012-03-30 2017-04-25 The General Hospital Corporation Imaging system, method and distal attachment for multidirectional field of view endoscopy
WO2013177154A1 (en) 2012-05-21 2013-11-28 The General Hospital Corporation Apparatus, device and method for capsule microscopy
US9207062B2 (en) * 2012-12-10 2015-12-08 The Johns Hopkins University Distortion corrected optical coherence tomography system
JP6053138B2 (en) * 2013-01-24 2016-12-27 株式会社日立エルジーデータストレージ Optical tomographic observation apparatus and optical tomographic observation method
US9968261B2 (en) 2013-01-28 2018-05-15 The General Hospital Corporation Apparatus and method for providing diffuse spectroscopy co-registered with optical frequency domain imaging
WO2014120791A1 (en) 2013-01-29 2014-08-07 The General Hospital Corporation Apparatus, systems and methods for providing information regarding the aortic valve
WO2014121082A1 (en) 2013-02-01 2014-08-07 The General Hospital Corporation Objective lens arrangement for confocal endomicroscopy
EP2967491B1 (en) 2013-03-15 2022-05-11 The General Hospital Corporation A transesophageal endoscopic system for determining a mixed venous oxygen saturation of a pulmonary artery
EP2792996A1 (en) 2013-04-17 2014-10-22 Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO Interferometric distance sensing device and method
WO2014186353A1 (en) 2013-05-13 2014-11-20 The General Hospital Corporation Detecting self-interefering fluorescence phase and amplitude
WO2015009932A1 (en) 2013-07-19 2015-01-22 The General Hospital Corporation Imaging apparatus and method which utilizes multidirectional field of view endoscopy
EP3021735A4 (en) 2013-07-19 2017-04-19 The General Hospital Corporation Determining eye motion by imaging retina. with feedback
ES2893237T3 (en) 2013-07-26 2022-02-08 Massachusetts Gen Hospital Apparatus with a laser arrangement using optical scattering for applications in optical coherence tomography in the Fourier domain
WO2015031404A1 (en) * 2013-08-26 2015-03-05 Lumedica, Inc. Optical coherence tomography imaging systems and methods
US9733460B2 (en) 2014-01-08 2017-08-15 The General Hospital Corporation Method and apparatus for microscopic imaging
CN103759654B (en) * 2014-01-23 2016-09-28 清华大学 A kind of two degrees of freedom homodyne grating interferometer displacement measurement system
WO2015116986A2 (en) 2014-01-31 2015-08-06 The General Hospital Corporation System and method for facilitating manual and/or automatic volumetric imaging with real-time tension or force feedback using a tethered imaging device
WO2015153982A1 (en) 2014-04-04 2015-10-08 The General Hospital Corporation Apparatus and method for controlling propagation and/or transmission of electromagnetic radiation in flexible waveguide(s)
EP3171766B1 (en) 2014-07-25 2021-12-29 The General Hospital Corporation Apparatus for in vivo imaging and diagnosis
EP3250956B1 (en) 2015-01-26 2023-12-27 Thorlabs, Inc. Microscopy system with auto-focus adjustment by low-coherence interferometry
US10788310B2 (en) * 2016-02-24 2020-09-29 Kabushiki Kaisha Topcon Methods and apparatus for phase stabilized swept-source optical coherence tomography (SS-OCT) including rescaling and dynamic range enhancement
GB201603305D0 (en) * 2016-02-25 2016-04-13 Isis Innovation Method of designing an interferometer
US10502544B2 (en) 2016-06-15 2019-12-10 Carl Zeiss Meditec, Inc. Efficient sampling of optical coherence tomography data for explicit ranging over extended depth
CN106770041B (en) * 2016-12-07 2019-09-13 哈尔滨工业大学 A kind of liquid refractivity tester and detection method based on interferometry
ES2933508T3 (en) * 2017-01-19 2023-02-09 Novartis Ag Method and apparatus for scanning by optical coherence tomography
US10509243B2 (en) * 2017-03-15 2019-12-17 Elenion Technologies, Llc Bias control of optical modulators
US10509295B2 (en) * 2017-03-15 2019-12-17 Elenion Technologies, Llc Bias control of optical modulators
WO2019183838A1 (en) * 2018-03-28 2019-10-03 深圳市太赫兹科技创新研究院 Optical coherence tomography system
US11525750B2 (en) * 2019-07-31 2022-12-13 Ut-Battelle, Llc Metal-embedded optical fibers for monitoring pressure or corrosion at high temperatures
CA3091463A1 (en) 2019-08-29 2021-02-28 Institut National De La Recherche Scientifique System and method for stabilization of multi-path optical interferometers
DE102020118871B3 (en) * 2020-07-16 2021-07-15 Technische Universität Dresden Receiving device and method for determining transmission properties of an optical waveguide and method for computer-aided training of a neural network
CN114259208B (en) * 2021-12-08 2024-02-20 南京润楠医疗电子研究院有限公司 Monitoring equipment
CN115778319A (en) * 2022-11-09 2023-03-14 山东大学 Visible light OCT system based on double-spectrometer light source noise compensation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5459570A (en) * 1991-04-29 1995-10-17 Massachusetts Institute Of Technology Method and apparatus for performing optical measurements
US6687008B1 (en) * 2000-10-19 2004-02-03 Kla-Tencor Corporation Waveguide based parallel multi-phaseshift interferometry for high speed metrology, optical inspection, and non-contact sensing

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPQ641500A0 (en) * 2000-03-23 2000-04-15 Defence Science And Technology Organisation Method and apparatus for estimating chromatic dispersion in fibre bragg gratings
US20030103212A1 (en) 2001-08-03 2003-06-05 Volker Westphal Real-time imaging system and method
WO2004111929A2 (en) * 2003-05-28 2004-12-23 Duke University Improved system for fourier domain optical coherence tomography

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5459570A (en) * 1991-04-29 1995-10-17 Massachusetts Institute Of Technology Method and apparatus for performing optical measurements
US6687008B1 (en) * 2000-10-19 2004-02-03 Kla-Tencor Corporation Waveguide based parallel multi-phaseshift interferometry for high speed metrology, optical inspection, and non-contact sensing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ERIC UDD: "Fiber optic sensors", 1991, XP003003458 *

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