CA3088605A1 - Digitizer for an optical coherence tomography imager - Google Patents

Digitizer for an optical coherence tomography imager Download PDF

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Publication number
CA3088605A1
CA3088605A1 CA3088605A CA3088605A CA3088605A1 CA 3088605 A1 CA3088605 A1 CA 3088605A1 CA 3088605 A CA3088605 A CA 3088605A CA 3088605 A CA3088605 A CA 3088605A CA 3088605 A1 CA3088605 A1 CA 3088605A1
Authority
CA
Canada
Prior art keywords
signal
digital
oct
digitizer
clock
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.)
Pending
Application number
CA3088605A
Other languages
English (en)
French (fr)
Inventor
Daniel Aebischer
Pierre-Francois Maistre
Tobias BLASER
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.)
Acqiris SA
Original Assignee
Acqiris SA
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 Acqiris SA filed Critical Acqiris SA
Publication of CA3088605A1 publication Critical patent/CA3088605A1/en
Pending legal-status Critical Current

Links

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
    • G01B9/02055—Reduction or prevention of errors; Testing; Calibration
    • G01B9/02062—Active error reduction, i.e. varying with time
    • G01B9/02067—Active error reduction, i.e. varying with time by electronic control systems, i.e. using feedback acting on optics or light
    • 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
    • G01B9/02055—Reduction or prevention of errors; Testing; Calibration
    • G01B9/02062—Active error reduction, i.e. varying with time
    • G01B9/02067—Active error reduction, i.e. varying with time by electronic control systems, i.e. using feedback acting on optics or light
    • G01B9/02069—Synchronization of light source or manipulator and detector
    • 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
    • G01B9/02083—Interferometers characterised by particular signal processing and presentation
    • 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
    • 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
    • G01B2290/60—Reference interferometer, i.e. additional interferometer not interacting with object
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Signal Processing (AREA)
  • Automation & Control Theory (AREA)
  • Optics & Photonics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
CA3088605A 2018-01-26 2018-01-26 Digitizer for an optical coherence tomography imager Pending CA3088605A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2018/050489 WO2019145754A1 (en) 2018-01-26 2018-01-26 Digitizer for an optical coherence tomography imager

Publications (1)

Publication Number Publication Date
CA3088605A1 true CA3088605A1 (en) 2019-08-01

Family

ID=61168142

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3088605A Pending CA3088605A1 (en) 2018-01-26 2018-01-26 Digitizer for an optical coherence tomography imager

Country Status (6)

Country Link
US (1) US11397076B2 (https=)
EP (1) EP3743678B1 (https=)
JP (1) JP7252977B2 (https=)
CN (1) CN111699358A (https=)
CA (1) CA3088605A1 (https=)
WO (1) WO2019145754A1 (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112587086A (zh) * 2021-03-04 2021-04-02 季华实验室 一种双模式偏振光学相干成像系统及其成像方法
CN112603255B (zh) * 2021-03-04 2021-07-20 季华实验室 一种可消除固有噪声的光学相干成像系统及成像方法
EP4655553A1 (en) * 2023-01-23 2025-12-03 IPG Photonics Corporation Swept-source optical coherence tomography with enhanced signal detection

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8687666B2 (en) * 2010-12-28 2014-04-01 Axsun Technologies, Inc. Integrated dual swept source for OCT medical imaging
JP2013181790A (ja) * 2012-02-29 2013-09-12 Systems Engineering Inc 周波数走査型ｏｃｔ用サンプリングクロック発生装置の使用方法、周波数走査型ｏｃｔ用サンプリングクロック発生装置
US9784559B2 (en) * 2012-03-21 2017-10-10 Ludwig-Maximilians-Universität München Swept source OCT system and method with phase-locked detection
JP6262762B2 (ja) * 2012-12-06 2018-01-17 リーハイ・ユニバーシティー 空間分割多重光コヒーレンストモグラフィー装置
JP6047059B2 (ja) * 2013-04-22 2016-12-21 日本電信電話株式会社 データ処理装置およびリサンプリング方法
JP6465557B2 (ja) 2014-04-08 2019-02-06 株式会社トーメーコーポレーション 断層撮影装置
EP3172527B1 (en) * 2014-07-25 2024-03-06 Excelitas Technologies Corp. Real time fpga resampling for swept source optical coherence tomography
JP6426974B2 (ja) * 2014-10-20 2018-11-21 株式会社トプコン データ処理方法及びｏｃｔ装置
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
US10627212B2 (en) * 2016-04-25 2020-04-21 Kabushiki Kaisha Topcon Swept-source optical coherence tomography (SS-OCT) phase stabilization with reference signal calibration
JP6779662B2 (ja) * 2016-05-23 2020-11-04 キヤノン株式会社 撮像装置、撮像装置の制御方法、及びプログラム
CN106949966B (zh) * 2017-03-24 2018-05-08 中国科学院上海光学精密机械研究所 扫频光学相干层析成像系统的光谱标定方法

Also Published As

Publication number Publication date
US20210055096A1 (en) 2021-02-25
EP3743678B1 (en) 2024-07-31
WO2019145754A1 (en) 2019-08-01
US11397076B2 (en) 2022-07-26
EP3743678A1 (en) 2020-12-02
CN111699358A (zh) 2020-09-22
JP7252977B2 (ja) 2023-04-05
EP3743678C0 (en) 2024-07-31
JP2021517254A (ja) 2021-07-15

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