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Fibre optic gyroscope
About: Fibre optic gyroscope is a research topic. Over the lifetime, 2438 publications have been published within this topic receiving 21164 citations.
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TL;DR: In this article, the authors describe new single-mode fiber optic devices which are completely equivalent to fractional wave plates of classical optics and employ a very simple configuration which uses the stress birefringence induced by bending the fibre.
Abstract: We describe new single-mode fibre optic devices which are completely equivalent to fractional wave plates of classical optics. They employ a very simple configuration which uses the stress birefringence induced by bending the fibre. Several devices can be combined to control the polarisation inside any single-mode fibre.
541 citations
Book•
01 Jan 1993
TL;DR: In this article, the authors present a backscattering analysis of polarization non-reciprocities with broadband source and high-birefringence fiber transient related drift and noise.
Abstract: Principle of the fibre-optic gyro reciprocity of a fibre ring interferometer backreflection and backscattering analysis of polarization non-reciprocities with broadband source and high-birefringence fibre transient related drift and noise truly non-reciprocal effects scale factor accuracy alternative approaches for the I-FOG applications and trends.
478 citations
TL;DR: In this article, a fiber-optic strain sensor is demonstrated by using a short length of polarization-maintaining photonic crystal fiber (PM-PCF) as the sensing element inserted in a Sagnac loop interferometer.
Abstract: A fiber-optic strain sensor is demonstrated by using a short length of polarization-maintaining photonic crystal fiber (PM-PCF) as the sensing element inserted in a Sagnac loop interferometer. Spectrum shift in response of strain with a sensitivity of 0.23pm∕μe is achieved, and the measurement range, by stretching the PM-PCF only, is up to 32me. Due to the ultralow thermal sensitivity of the PM-PCF, the proposed strain sensor is inherently insensitive to temperature, eliminating the requirement for temperature compensation.
415 citations
TL;DR: In this article, the Sagnac effect was applied to the SAGA-effect interferometer gyroscope with a short-term rotation-rate sensitivity of 6×10−10 rad s−1 over 1 s integration.
Abstract: We reports improvements to our Sagnac effect matter-wave interferometer gyroscope. This device now has a short-term rotation-rate sensitivity of 6×10−10 rad s−1 over 1 s of integration, which is the best publicly reported value to date. Stimulated Raman transitions are used to coherently manipulate atoms from counterpropagating thermal beams, forming two interferometers with opposite rotation phase shifts, allowing rotation to be distinguished from acceleration and laser arbitrary phase. Furthermore, electronically compensating the rotation-induced Doppler shifts of the Raman lasers allows operation at an effective zero rotation rate, improving sensitivity and facilitating sensitive lock-in detection readout techniques. Long-term stability is promising but not yet fully characterized. Potential applications include inertial navigation, geophysical studies and tests of general relativity.
409 citations
Book•
01 Jan 2014
TL;DR: In this paper, Lopez et al. presented an overview of the development and application of optical fibre sensors in light and waveguiding applications, as well as their application in industrial applications.
Abstract: PART ONE: PRELIMINARY OVERVIEW Introduction to Fibre Optic Sensing Technology (J.M. Lopez--Higuera) The Commercialisation of Fibre Optic Sensors (S.D. Crossley) PART TWO: FUNDAMENTALS OF PHOTONICS AND COMPONENTS FOR SENSING Light and Waveguiding (J.L. Arce--Diego) Optical Waveguides and their Manufacture (J. Zubia and M. Lomer) Passive Bulk Optical Components for Sensing (C. Gomez--Reino, V. Perez and C. Bao) Fibre and Integrated Optic Components for Sensing (R. Willsch and W. Ecke) Semiconductor Optical Sources for Sensing Technology (I. Esquivias and J. Arias) Photodetectors for Sensing (J.M. Lopez--Higuera and J. Madruga) Optical Amplifiers (M.A. Rebolledo and M. Lopez--Amo) Superfluorescent Fibre Optic Sources (J.M. Lopez--Higuera) PART THREE: PRINCIPLES AND TECHNIQUES FOR SENSING Transduction Techniques based on Intensity Modulation of Light (A.C. Garcia and J. Echevarria Cuenca) Interferometry and Polarimetry for Optical Sensing (DC. Jones) Gas Spectroscopy Techniques for Optical Fibre Sensors (B. Culshaw) Distributed Optical--fibre Sensing (A. Rogers) Principles of Laser Doppler Velocimetry (D.A. Jackson and C.N. Pannell) Fibre Gyroscope Principles (S. Merlo, M. Norgia and S. Donati) Fibre Grating Technology: Theory, Photosensitivity, Fabrication and Characterization (R. Khasyap and J.M. Lopez--Higuera) Fibre Bragg Grating Interrogation Techniques (J.L. Santos and W.N. MacPherson) Discrimination Techniques for Optical Sensors (J.D.C. Jones and W.N. MacPherson) Optical Reliability of Fibre Gratings (S. Kannan and P. Lemaire) Passive Fibre Optic Sensor Networks (A. Dandridge and C. Kirkendall) Active Fibre Optic Sensor Networks (S. Abad, M. Lopez--Amo and I.R. Matias) PART FOUR: APPLICATIONS Optical Fibre Gratings Applications (S.T. Vohra) Laser Doppler Velocimetry Applications (D.A. Jackson and C.N. Pannell) Phototonic Sensing Technology in Civil Engineering Applications (D. Inaudi) Applications of Optical Fibre Sensors for the Nuclear Power Industry (P. Ferdinand and S. Magne) Optical Fibre Current and Voltage Sensors for the Electric Power Industry (A.H. Rose and G.W. Day) Fibre Optic Gyroscope for Industrial Applications (T. Kumagai and H. Kajioka) Optical Fibre Sensors for Fly--By--Light Aircraft (M. Kobayashi and K. Toyama) Optical Fibre Sensing of Electrical Discharges and Plasmas (G. Woolsey) Fibre Optic Sensors for Oilfield Services (R.J. Schroeder, R.T. Ramos, T. Yamate and E. Udd) Fibre Optic Biosensors (C.A. Rowe--Taitt and F.S. Ligler) Biomedical Fibre Optic Sensors (F. Baldini and A.G. Mignani) Fibre Optic Sensors for Environmental Applications (G. Holst and B. Mizaikoff) The Optical Nose (D. Walt and S. Stitzel) A New Approach to optical Fibre Sensing Techniques based on the Sensory Systems of Living Bodies (J.A. Martin--Pereda and A.P. Gonzalez--Marcos) Acronyms. Index.
332 citations