Magneto-optic field coupling in optical fiber Bragg gratings
| Autor: | William Lance Richards, Panduranga K. Mohanchandra, Gregory P. Carman, Michael C. Emmons |
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| Rok vydání: | 2012 |
| Předmět: |
PHOSFOS
Materials science business.industry Physics::Optics Polarization-maintaining optical fiber Graded-index fiber Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Optics Fiber Bragg grating Control and Systems Engineering Fiber optic sensor Optoelectronics Electrical and Electronic Engineering business Plastic optical fiber Instrumentation Hard-clad silica optical fiber Photonic-crystal fiber |
| Zdroj: | Optical Fiber Technology. 18:157-160 |
| ISSN: | 1068-5200 |
| DOI: | 10.1016/j.yofte.2012.02.006 |
| Popis: | The invention is a magneto-optic coupled magnetic sensor that comprises a standard optical fiber Bragg grating system. The system includes an optical fiber with at least one Bragg grating therein. The optical fiber has at least an inner core and a cladding that surrounds the inner core. The optical fiber is part of an optical system that includes an interrogation device that provides a light wave through the optical fiber and a system to determine the change in the index of refraction of the optical fiber. The cladding of the optical fiber comprises at least a portion of which is made up of ferromagnetic particles so that the ferromagnetic particles are subject to the light wave provided by the interrogation system. When a magnetic field is present, the ferromagnetic particles change the optical properties of the sensor directly. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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