GB2386436A - Platform with controlled thermal expansion coefficient - Google Patents

Platform with controlled thermal expansion coefficient

Info

Publication number
GB2386436A
GB2386436A GB0312996A GB0312996A GB2386436A GB 2386436 A GB2386436 A GB 2386436A GB 0312996 A GB0312996 A GB 0312996A GB 0312996 A GB0312996 A GB 0312996A GB 2386436 A GB2386436 A GB 2386436A
Authority
GB
United Kingdom
Prior art keywords
expansion coefficient
thermal expansion
platform
support
controlled thermal
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
GB0312996A
Other versions
GB2386436B (en
GB0312996D0 (en
Inventor
William John Clegg
Anthony Kelly
Robert James Stearn
Luc Jean Marie Vandeperre
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.)
Cambridge University Technical Services Ltd CUTS
Original Assignee
Cambridge University Technical Services Ltd CUTS
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
Priority claimed from GB0027411A external-priority patent/GB0027411D0/en
Priority claimed from GB0103533A external-priority patent/GB0103533D0/en
Application filed by Cambridge University Technical Services Ltd CUTS filed Critical Cambridge University Technical Services Ltd CUTS
Publication of GB0312996D0 publication Critical patent/GB0312996D0/en
Publication of GB2386436A publication Critical patent/GB2386436A/en
Application granted granted Critical
Publication of GB2386436B publication Critical patent/GB2386436B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • G02B6/02171—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for compensating environmentally induced changes
    • G02B6/02176—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for compensating environmentally induced changes due to temperature fluctuations
    • G02B6/0218—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for compensating environmentally induced changes due to temperature fluctuations using mounting means, e.g. by using a combination of materials having different thermal expansion coefficients
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/16—Housings; Caps; Mountings; Supports, e.g. with counterweight
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/008—Mountings, adjusting means, or light-tight connections, for optical elements with means for compensating for changes in temperature or for controlling the temperature; thermal stabilisation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

A platform comprising a support providing a controlled thermal expansion coefficient in a given direction. The support is formed of a material having a first thermal expansion coefficient and is connected to a body having a second thermal expansion coefficient. The first thermal expansion coefficient is different from the second thermal expansion coefficient, such that a change in temperature causes a relative change in the dimensions of the support and the body in a direction perpendicular to the said given direction, thereby resulting in the variation of a force applied to the support by the body in the direction perpendicular to the said given direction to control the resultant expansion coefficient in the said direction. The use of the platform for mounting optical elements such as fibre Bragg gratings, Fabry-Perot cavities or telescopes is disclosed.
GB0312996A 2000-11-09 2001-11-07 Platform with controlled thermal expansion coefficient Expired - Fee Related GB2386436B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0027411A GB0027411D0 (en) 2000-11-09 2000-11-09 Platform
GB0103533A GB0103533D0 (en) 2001-02-13 2001-02-13 PPlatform
PCT/GB2001/004955 WO2002039160A1 (en) 2000-11-09 2001-11-07 Platform with controlled thermal expansion coefficient

Publications (3)

Publication Number Publication Date
GB0312996D0 GB0312996D0 (en) 2003-07-09
GB2386436A true GB2386436A (en) 2003-09-17
GB2386436B GB2386436B (en) 2004-08-04

Family

ID=26245265

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0312996A Expired - Fee Related GB2386436B (en) 2000-11-09 2001-11-07 Platform with controlled thermal expansion coefficient

Country Status (3)

Country Link
AU (1) AU2002223790A1 (en)
GB (1) GB2386436B (en)
WO (1) WO2002039160A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2828940B1 (en) * 2001-08-22 2004-08-27 Highwave Optical Tech OPTICAL FIBER ATHERMIC DEVICE
GB0222115D0 (en) * 2002-09-24 2002-10-30 Univ Cambridge Tech Improved composite structures
JP5066494B2 (en) 2008-08-12 2012-11-07 Ｎｔｔエレクトロニクス株式会社 Optical multiplexer / demultiplexer
US8477165B2 (en) * 2011-11-21 2013-07-02 Electronics For Imaging, Inc. Method and apparatus for thermal expansion based print head alignment
AT515951B1 (en) * 2014-06-24 2016-05-15 Anton Paar Gmbh positioning
CN110456498A (en) * 2019-08-06 2019-11-15 南京英田光学工程股份有限公司 Based on the adjustable main beam-expanding system for carrying out Control Thermal Deformation with reversed thermal compensation
CN114088240B (en) * 2021-10-15 2023-10-31 西安石油大学 Cold-hot extension type fiber bragg grating temperature sensor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1325936A (en) * 1919-04-16 1919-12-23 Soc Optique Mec Haute Prec Apparatus for rendering the true or apparent focal length of objectives independent of changes of temperature.
US4116537A (en) * 1975-10-08 1978-09-26 Honeywell Inc. Thermal compensation apparatus
US5042898A (en) * 1989-12-26 1991-08-27 United Technologies Corporation Incorporated Bragg filter temperature compensated optical waveguide device
US5570238A (en) * 1995-03-31 1996-10-29 Lockheed Missiles & Space Company, Inc. Thermally compensating lens mount
US6040950A (en) * 1998-01-05 2000-03-21 Intel Corporation Athermalized mounts for lenses
US6087280A (en) * 1996-01-16 2000-07-11 Corning Incorporated Athermal optical device
US6112553A (en) * 1997-12-16 2000-09-05 France Telecom Method of making a device for temperature stabilizing a Bragg grating

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1325936A (en) * 1919-04-16 1919-12-23 Soc Optique Mec Haute Prec Apparatus for rendering the true or apparent focal length of objectives independent of changes of temperature.
US4116537A (en) * 1975-10-08 1978-09-26 Honeywell Inc. Thermal compensation apparatus
US5042898A (en) * 1989-12-26 1991-08-27 United Technologies Corporation Incorporated Bragg filter temperature compensated optical waveguide device
US5570238A (en) * 1995-03-31 1996-10-29 Lockheed Missiles & Space Company, Inc. Thermally compensating lens mount
US6087280A (en) * 1996-01-16 2000-07-11 Corning Incorporated Athermal optical device
US6112553A (en) * 1997-12-16 2000-09-05 France Telecom Method of making a device for temperature stabilizing a Bragg grating
US6040950A (en) * 1998-01-05 2000-03-21 Intel Corporation Athermalized mounts for lenses

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
YOFFE G W ET AL: "PASSIVE TEMPERATURE-COMPENSATING PACKAGE FOR OPTICAL FIBER GRATINS" APPLIED OPTICS, OPTICAL SOCIETY OF AMERICA, WASHINGTON, US, vol.34, no 30, 20 October 1995 (1995-10-20), pages 6859-6861, XP000534305 ISSN: 0003-6935 the whole document *

Also Published As

Publication number Publication date
GB2386436B (en) 2004-08-04
WO2002039160A1 (en) 2002-05-16
GB0312996D0 (en) 2003-07-09
AU2002223790A1 (en) 2002-05-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20051107