WO2006114635A3 - Measuring devices and methods employing a dispersive medium in an optical resonator - Google Patents

Measuring devices and methods employing a dispersive medium in an optical resonator Download PDF

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Publication number
WO2006114635A3
WO2006114635A3 PCT/GB2006/001547 GB2006001547W WO2006114635A3 WO 2006114635 A3 WO2006114635 A3 WO 2006114635A3 GB 2006001547 W GB2006001547 W GB 2006001547W WO 2006114635 A3 WO2006114635 A3 WO 2006114635A3
Authority
WO
WIPO (PCT)
Prior art keywords
medium
cavity
measuring devices
optical resonator
dispersive medium
Prior art date
Application number
PCT/GB2006/001547
Other languages
French (fr)
Other versions
WO2006114635A2 (en
Inventor
Benjamin Thomas Hornsby Varcoe
Original Assignee
Univ Sussex
Benjamin Thomas Hornsby Varcoe
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 Sussex, Benjamin Thomas Hornsby Varcoe filed Critical Univ Sussex
Publication of WO2006114635A2 publication Critical patent/WO2006114635A2/en
Publication of WO2006114635A3 publication Critical patent/WO2006114635A3/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/032—Measuring direction or magnitude of magnetic fields or magnetic flux using magneto-optic devices, e.g. Faraday or Cotton-Mouton effect

Abstract

A measuring system comprises a laser (10) which acts as a source of electromagnetic radiation. The electromagnetic radiation is directed into two resonance cavities (11, 14), formed by mirrors (12, 13) and (15, 16), respectively. Detectors (27, 28) determine when the laser beam in each cavity is resonating in the cavity. One of the resonance cavities contains a dispersive medium (17) whose refractive index also varies in dependence upon the strength of the magnetic field to which the medium (17) is exposed. The beat frequency between the beam in the cavity (11) and the beam in the cavity (14) containing the medium (17) is determined by a detector (19) and gives a measure of the magnetic field to which the medium (17) is being exposed.
PCT/GB2006/001547 2005-04-27 2006-04-27 Measuring devices and methods employing a dispersive medium in an optical resonator WO2006114635A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0508578A GB0508578D0 (en) 2005-04-27 2005-04-27 Measuring systems and devices
GB0508578.2 2005-04-27

Publications (2)

Publication Number Publication Date
WO2006114635A2 WO2006114635A2 (en) 2006-11-02
WO2006114635A3 true WO2006114635A3 (en) 2007-03-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2006/001547 WO2006114635A2 (en) 2005-04-27 2006-04-27 Measuring devices and methods employing a dispersive medium in an optical resonator

Country Status (2)

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GB (1) GB0508578D0 (en)
WO (1) WO2006114635A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3191310A4 (en) 2014-09-08 2018-03-14 Li-Cor, Inc. Ultra stable resonant cavities for gas analysis systems
US10401439B2 (en) * 2017-02-27 2019-09-03 Honeywell International Inc. System and method for a cavity magnetometer using a pound-drever-hall detector

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405529A1 (en) * 1989-06-29 1991-01-02 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. Ring laser gyroscope
US6028873A (en) * 1996-09-17 2000-02-22 Kabushiki Kaisha Toshiba Optical device capable of functioning without a population inversion
WO2000072411A1 (en) * 1999-04-30 2000-11-30 University Of New Mexico Bi-directional short pulse ring laser

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405529A1 (en) * 1989-06-29 1991-01-02 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. Ring laser gyroscope
US6028873A (en) * 1996-09-17 2000-02-22 Kabushiki Kaisha Toshiba Optical device capable of functioning without a population inversion
WO2000072411A1 (en) * 1999-04-30 2000-11-30 University Of New Mexico Bi-directional short pulse ring laser

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
D.J.GOORSKEY ET AL.: "Effects of a highly dispersive atomic medium inside an optical ring cavity", JOURNAL OF MODERN OPTICS, LONDON, GB, vol. 49, no. 1/2, 2002, UK, pages 305 - 317, XP008067617, ISSN: 0950-0340 *
F.ZIMMER ET AL.: "Sagnac Interferometry Based on Ultraslow Polaritrons in Cold Atomic Vapors", PHYSICAL REVIEW LETTERS, vol. 92, no. 25, 2004, US, pages 253201-1 - 253201-4, XP002394781 *
HAI WANG ET AL.: "Atomic coherence induced Kerr nonlinearity enhancement in Rb vapour", JOURNAL OF MODERN OPTICS, LONDON, GB, vol. 49, no. 3/4, 2002, UK, pages 335 - 347, XP008067616, ISSN: 0950-0340 *
MIN XIAO: "Novel Linear and Nonlinear Optical Properties of Electromagnetically Induced Transparency Systems", IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, vol. 9, no. 1, 2003, US, pages 86 - 92, XP002394780 *
WENG YANG ET AL.: "Enhancement of the cavity ringdown effect based on electromagnetically induced transparency", OPTICS LETTERS, vol. 29, no. 18, 2004, US, pages 2133 - 2135, XP002394779 *

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Publication number Publication date
GB0508578D0 (en) 2005-06-01
WO2006114635A2 (en) 2006-11-02

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