GB1244337A - Improvements in or relating to optical apparatus - Google Patents

Improvements in or relating to optical apparatus

Info

Publication number
GB1244337A
GB1244337A GB5019668A GB5019668A GB1244337A GB 1244337 A GB1244337 A GB 1244337A GB 5019668 A GB5019668 A GB 5019668A GB 5019668 A GB5019668 A GB 5019668A GB 1244337 A GB1244337 A GB 1244337A
Authority
GB
United Kingdom
Prior art keywords
reflector
reflection
oct
returned
recombined
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
Application number
GB5019668A
Other languages
English (en)
Inventor
Knut Indergaard Jespersen
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB5019668A priority Critical patent/GB1244337A/en
Priority to DE19691953243 priority patent/DE1953243A1/de
Publication of GB1244337A publication Critical patent/GB1244337A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/144—Beam splitting or combining systems operating by reflection only using partially transparent surfaces without spectral selectivity
    • 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
    • G01B9/02015—Interferometers characterised by the beam path configuration
    • G01B9/02017—Interferometers characterised by the beam path configuration with multiple interactions between the target object and light beams, e.g. beam reflections occurring from different locations
    • G01B9/02021—Interferometers characterised by the beam path configuration with multiple interactions between the target object and light beams, e.g. beam reflections occurring from different locations contacting different faces of object, e.g. opposite faces
    • 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
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/145—Beam splitting or combining systems operating by reflection only having sequential partially reflecting surfaces
    • 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)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
GB5019668A 1968-10-22 1968-10-22 Improvements in or relating to optical apparatus Expired GB1244337A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5019668A GB1244337A (en) 1968-10-22 1968-10-22 Improvements in or relating to optical apparatus
DE19691953243 DE1953243A1 (de) 1968-10-22 1969-10-22 Optisches Geraet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5019668A GB1244337A (en) 1968-10-22 1968-10-22 Improvements in or relating to optical apparatus

Publications (1)

Publication Number Publication Date
GB1244337A true GB1244337A (en) 1971-08-25

Family

ID=10455033

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5019668A Expired GB1244337A (en) 1968-10-22 1968-10-22 Improvements in or relating to optical apparatus

Country Status (2)

Country Link
DE (1) DE1953243A1 (de)
GB (1) GB1244337A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982004310A1 (en) * 1981-05-26 1982-12-09 Inc Gould Fiber optic interferometer
WO1982004311A1 (en) * 1981-05-26 1982-12-09 Inc Gould Fiber optic interferometer
GB2261299A (en) * 1991-11-08 1993-05-12 British Tech Group Optical interferometer
GB2551968A (en) * 2016-06-28 2018-01-10 Oclaro Tech Ltd Optical locker
CN113933944A (zh) * 2021-09-24 2022-01-14 昂纳信息技术（深圳）有限公司 一种高功率光纤耦合器及多通道光纤耦合器

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982004310A1 (en) * 1981-05-26 1982-12-09 Inc Gould Fiber optic interferometer
WO1982004311A1 (en) * 1981-05-26 1982-12-09 Inc Gould Fiber optic interferometer
GB2261299A (en) * 1991-11-08 1993-05-12 British Tech Group Optical interferometer
GB2261299B (en) * 1991-11-08 1995-06-21 British Tech Group Measuring instruments
US5546184A (en) * 1991-11-08 1996-08-13 British Technology Group Ltd. Single-frequency bidirectional fringe-counting interferometer
GB2551968A (en) * 2016-06-28 2018-01-10 Oclaro Tech Ltd Optical locker
US10612906B2 (en) 2016-06-28 2020-04-07 Lumentum Technology Uk Limited Optical locker using first and second transparent materials for path length independence from temperature
US11215440B2 (en) 2016-06-28 2022-01-04 Lumentum Technology Uk Limited Interferometry assembly for use in an optical locker
US11835337B2 (en) 2016-06-28 2023-12-05 Lumentum Technology Uk Limited Interferometry assembly having optical paths through different materials
CN113933944A (zh) * 2021-09-24 2022-01-14 昂纳信息技术（深圳）有限公司 一种高功率光纤耦合器及多通道光纤耦合器
CN113933944B (zh) * 2021-09-24 2023-04-14 昂纳科技(深圳)集团股份有限公司 一种高功率光纤耦合器及多通道光纤耦合器

Also Published As

Publication number Publication date
DE1953243A1 (de) 1970-05-27

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