GB2477685A - Wavefront sensing method & apparatus - Google Patents

Wavefront sensing method & apparatus Download PDF

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Publication number
GB2477685A
GB2477685A GB1108884A GB201108884A GB2477685A GB 2477685 A GB2477685 A GB 2477685A GB 1108884 A GB1108884 A GB 1108884A GB 201108884 A GB201108884 A GB 201108884A GB 2477685 A GB2477685 A GB 2477685A
Authority
GB
United Kingdom
Prior art keywords
wavefront
bundle
phase
piston
phases
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.)
Granted
Application number
GB1108884A
Other versions
GB201108884D0 (en
GB2477685B (en
Inventor
James Gordon Burnett
Andrew Maxwell Scott
David Caradoc Jones
Simon Christopher Woods
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.)
Qinetiq Ltd
Original Assignee
Qinetiq Ltd
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 Qinetiq Ltd filed Critical Qinetiq Ltd
Publication of GB201108884D0 publication Critical patent/GB201108884D0/en
Publication of GB2477685A publication Critical patent/GB2477685A/en
Application granted granted Critical
Publication of GB2477685B publication Critical patent/GB2477685B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J9/00Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
    • G01J9/04Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by beating two waves of a same source but of different frequency and measuring the phase shift of the lower frequency obtained
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J9/00Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J9/00Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
    • G01J9/02Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J9/00Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
    • G01J2009/002Wavefront phase distribution
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J9/00Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
    • G01J9/02Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods
    • G01J2009/0203Phased array of beams
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J9/00Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
    • G01J9/02Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods
    • G01J2009/0226Fibres

Abstract

Wavefront sensing apparatus comprises a beam splitter (106) for combining a wavefront to he characterised (105) with a frequency-shifted plane wavefront (111) and a bundle of optical fibres (112) arranged to detect the combined beam at a plurality of positions across the combined beam. Output from individual fibres of the bundle are detected to produce corresponding heterodyne signals, the phases of which are extracted by demodulation. By fitting the extracted phases to an assumed functional form for the phase of the wavefront to be characterised, the piston, tip, tilt and radius of curvature phase parameters of the wave-front to be characterised may be found at the position of the fibre bundle. In contrast, prior art methods of wavefront characterisation only allow the piston phase of the wavefront to be characterised to be obtained.
GB1108884.6A 2008-12-05 2009-12-04 Wavefront sensing method & apparatus Active GB2477685B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0822247.3A GB0822247D0 (en) 2008-12-05 2008-12-05 Wavefront sensing method and apparatus
PCT/GB2009/002826 WO2010064022A1 (en) 2008-12-05 2009-12-04 Wavefront sensing method & apparatus

Publications (3)

Publication Number Publication Date
GB201108884D0 GB201108884D0 (en) 2011-07-13
GB2477685A true GB2477685A (en) 2011-08-10
GB2477685B GB2477685B (en) 2013-10-23

Family

ID=40289566

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0822247.3A Ceased GB0822247D0 (en) 2008-12-05 2008-12-05 Wavefront sensing method and apparatus
GB1108884.6A Active GB2477685B (en) 2008-12-05 2009-12-04 Wavefront sensing method & apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0822247.3A Ceased GB0822247D0 (en) 2008-12-05 2008-12-05 Wavefront sensing method and apparatus

Country Status (3)

Country Link
US (1) US20110235049A1 (en)
GB (2) GB0822247D0 (en)
WO (1) WO2010064022A1 (en)

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FR2976663B1 (en) * 2011-06-14 2013-07-19 Commissariat Energie Atomique DEVICE AND METHOD FOR CHARACTERIZING A LIGHT BEAM.
US8792099B1 (en) * 2011-12-21 2014-07-29 Hrl Laboratories, Llc Method and apparatus for phase detection in a beam steering laser array
US8792526B2 (en) 2012-05-24 2014-07-29 Northrop Grumman Systems Corporation Coherent laser array control system and method
US9496296B1 (en) * 2013-12-20 2016-11-15 Rockwell Collins, Inc. Optically-tuned electronic components
US9945731B1 (en) 2015-01-14 2018-04-17 Hrl Laboratories, Llc Optical detector for measuring respective phases of multiple beams apparatus and method
US9941661B1 (en) 2015-01-14 2018-04-10 Hrl Laboratories, Llc System for maintaining the locking range of an injection locked laser array within range of the frequency of a master laser
WO2016125207A1 (en) * 2015-02-06 2016-08-11 オリンパス株式会社 Optical fiber scanner and scanning endoscope device
WO2018122916A1 (en) * 2016-12-26 2018-07-05 オリンパス株式会社 Optical fiber scanning device and endoscope
EP3486624A1 (en) 2017-11-21 2019-05-22 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Wavefront detector

Citations (2)

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Publication number Priority date Publication date Assignee Title
US4387966A (en) * 1980-07-09 1983-06-14 Rockwell International Corporation Wide bandwidth optical modal deformation sensor
EP1041686A2 (en) * 1999-04-01 2000-10-04 TRW Inc. Improved high average power fiber laser system with high-speed, parallel wavefront sensor

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
US4141652A (en) * 1977-11-25 1979-02-27 Adaptive Optics Associates, Inc. Sensor system for detecting wavefront distortion in a return beam of light
US4399356A (en) * 1981-01-19 1983-08-16 Adaptive Optics Associates, Inc. Optical wavefront sensing system
US4737621A (en) * 1985-12-06 1988-04-12 Adaptive Optics Assoc., Inc. Integrated adaptive optical wavefront sensing and compensating system
IL130904A (en) * 1998-08-11 2004-07-25 Trw Inc High average power fiber laser system with phase front control
US6229616B1 (en) * 1999-04-01 2001-05-08 Trw Inc. Heterodyne wavefront sensor
US6147755A (en) * 1999-04-01 2000-11-14 Trw Inc. Dynamic optical phase state detector
DE10121516A1 (en) * 2001-05-03 2002-11-07 Michael Kuechel Illuminating apparatus for an object under test in an interferometer with an optical axis (OA) has radiation director directing radiation at object from different locations distant from axis
US6891987B2 (en) * 2002-04-24 2005-05-10 Hrl Laboratories, Llc Multi-aperture beam steering system with wavefront correction based on a tunable optical delay line
GB0328904D0 (en) * 2003-12-12 2004-01-14 Swan Thomas & Co Ltd Scarab
US20050243275A1 (en) * 2004-04-30 2005-11-03 Curatu Eugene O Wavefront sensor and relay for optical measurement and associated methods
US7445335B2 (en) * 2006-01-20 2008-11-04 Clarity Medical Systems, Inc. Sequential wavefront sensor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4387966A (en) * 1980-07-09 1983-06-14 Rockwell International Corporation Wide bandwidth optical modal deformation sensor
EP1041686A2 (en) * 1999-04-01 2000-10-04 TRW Inc. Improved high average power fiber laser system with high-speed, parallel wavefront sensor

Also Published As

Publication number Publication date
GB201108884D0 (en) 2011-07-13
US20110235049A1 (en) 2011-09-29
GB2477685B (en) 2013-10-23
GB0822247D0 (en) 2009-01-14
WO2010064022A1 (en) 2010-06-10

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