9 March 1994 Magneto-optic Kerr effect sensors for fiber optic applications
Author Affiliations +
Proceedings Volume 2070, Fiber Optic and Laser Sensors XI; (1994) https://doi.org/10.1117/12.169948
Event: Optical Tools for Manufacturing and Advanced Automation, 1993, Boston, MA, United States
A novel sensor technique using a magnetic thin film as the sensing element and the magneto- optic Kerr effect as the optical read technique has been tested experimentally through magnetic field measurements. Sensitivity results obtained using a simple free space ellipsometry measurement system show a magnetic field sensitivity near 10-3 Oe at low frequencies. Calculations indicate that sensitivities of order 10-6 Oe are possible with improvements in the optical system and the magnetic film sensing element. This technique appears to be implementable in a small fiber optic-compatible device, with foreseen advantages including a very high bandwidth, good thermal stability, and the use of a single optical path.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Steven A. Oliver, Steven A. Oliver, Charles A. DiMarzio, Charles A. DiMarzio, Aniruddha B. Kale, Aniruddha B. Kale, Scott C. Lindberg, Scott C. Lindberg, Stephen W. McKnight, Stephen W. McKnight, } "Magneto-optic Kerr effect sensors for fiber optic applications", Proc. SPIE 2070, Fiber Optic and Laser Sensors XI, (9 March 1994); doi: 10.1117/12.169948; https://doi.org/10.1117/12.169948


Fiber Optic Sensor Overview
Proceedings of SPIE (January 02 1986)
Fiber optic sensors for fly-by-light on-engine monitoring
Proceedings of SPIE (October 03 1994)
Fiber optic magnetometer with stable and linear output
Proceedings of SPIE (July 31 1991)
High-Sensitivity Photoelastic Pressure Sensor
Proceedings of SPIE (April 27 1987)
All Single Mode Fiber Magnetic Field Sensor
Proceedings of SPIE (January 02 1986)

Back to Top