High frequency magnetic field sensors based on the Faraday effect in garnet thick films

Wolfe, R.; Gyorgy, E.M.
April 1992
Applied Physics Letters;4/27/1992, Vol. 60 Issue 17, p2048
Academic Journal
Investigates the Faraday effect-based magnetic field sensors in garnet thick films. Characteristics of the film; Limitation of speed of operation by relaxation and resonance effects to upper frequencies; Factors required for maximum sensitivity.


Related Articles

  • Evaluation of an ITER compatible, thin foil Faraday collector as a lost alpha particle diagnostic for high yield D-T fusion plasmas Loughlin, M. J.; Cecil, F. E.; Hone, M.; Jarvis, O. N.; Medley, S. S.; Roquemore, A. L.; Sadler, G. J.; van Belle, P.; Whitfield, G. // Review of Scientific Instruments;Jan1997, Vol. 68 Issue 1, p361 

    Discusses the results of a study which examined the concept of a thin foil Faraday collector as a lost alpha particle detector capable of operating under International Thermonuclear Experimental Reactor-like conditions. Description of the detector; Tokamak Fusion Test Reactor measurements;...

  • Development of a magneto-optic current sensor for high, pulsed currents. Lassing, H. S.; Oomens, A. A. M.; Woltjer, R.; van der Laan, P. C. T.; Wolzak, G. G. // Review of Scientific Instruments;May86, Vol. 57 Issue 5, p851 

    A description is given of a current-measurement system based on the Faraday rotation in a oneturn fiber coil. It is shown that an ultralow birefringence "spun" single-mode fiber is extremely suitable in a magneto-optic current sensor. The properties of this fiber were investigated. Measurements...

  • Current sensing using Faraday rotation and a common path optical fiber heterodyne interferometer. Bartlett, S. C.; Farahi, F.; Jackson, D. A. // Review of Scientific Instruments;Sep90, Vol. 61 Issue 9, p2433 

    An optical configuration for a current sensor utilizing the Faraday effect is described. A common path optical fiber heterodyne interferometer is used to greatly reduce noise produced by environmental effects. A miniature sensing element at the distal end of the fiber allows remote magnetic...

  • FLAT TYPE THICK FILM INDUCTIVE SENSORS. Marioli, D.; Sardini, E.; Taroni, A. // Active & Passive Electronic Components;Jan2003, Vol. 26 Issue 1, p37 

    Two thick film flat-type inductive sensors are described and tested for distance and profile measurement. The first one is a single-layer spiral while the second one is a multi-layer structure consisting of ten spirals one over the other. The paper describes their geometric configurations...

  • Magnetic field biasing in Faraday effect sensors. Guerrero, H.; del Real, R. Perez // Applied Physics Letters;6/14/1999, Vol. 74 Issue 24, p3702 

    Describes a method for improving the performances of Faraday effect sensors, which is based in the passive magnetic field biasing of a Faraday rotator. Reflective optical fiber sensor architectures based on a single polarizer and a mirror-coated Faraday rotator; Linear response and maximum...

  • Effects of thermal fiber annealing on the temperature compensation of interferometric fiber-optic current sensors. Lenner, M.; Wuest, R.; Frank, A.; Bohnert, K. // Fiber Optic Sensors & Systems;Oct2012, Vol. 26 Issue 10, p8 

    In this paper, we present an experimental and theoretical study on how thermal fiber annealing influences the temperature dependence of the interferometric fiber-optic current sensor. Such sensors measure the current-induced phase shift (Faraday effect) between left and right circularly...

  • A novel Cs-129Xe atomic spin gyroscope with closed-loop Faraday modulation. Fang, Jiancheng; Wan, Shuangai; Qin, Jie; Zhang, Chen; Quan, Wei; Yuan, Heng; Dong, Haifeng // Review of Scientific Instruments;Aug2013, Vol. 84 Issue 8, p083108 

    We report a novel Cs-129Xe atomic spin gyroscope (ASG) with closed-loop Faraday modulation method. This ASG requires approximately 30 min to start-up and 110 °C to operate. A closed-loop Faraday modulation method for measurement of the optical rotation was used in this ASG. This method uses...

  • Optical roll-angle sensor is stable, sensitive, and compact.  // Laser Focus World;Mar2005, Vol. 41 Issue 3, p9 

    This article focuses on optical roll-angle sensor. In angular terms, when one object rolls with respect to another, it is rotating around the axis that connects the two objects. One approach is to have a polarized light beam emanating from one object; a Faraday rotator on the second object...

  • Improved low concentration gas detection system based on intracavity fiber laser. Zhang, Hongxia; Liu, Kun; Jia, Dagong; Xu, Tianhua; Liu, Tiegen; Peng, Gangding; Jing, Wencai; Zhang, Yimo // Review of Scientific Instruments;Feb2011, Vol. 82 Issue 2, p023104 

    The improvement of a low concentration gas detection system based on the intracavity fiber laser is proposed in this paper. The sensitivity of the system is deduced based on Lambert-Beer law. The optimized system was established with the gas cell made elaborately. In order to apply the...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics