11 March 1987 Fiber Optic Electric Field Sensor Configurations For High Bandwidth Lightning Research Measurement Applications
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Proceedings Volume 0720, High Bandwidth Analog Applications of Photonics; (1987) https://doi.org/10.1117/12.937615
Event: Cambridge Symposium-Fiber/LASE '86, 1986, Cambridge, MA, United States
Abstract
A fiber optic electric field sensor for lightning research measurements based on the transverse electro-optic effect in Bi4(Ge04)3 electro-optic crystals (BGO) is described. The sensor is completely dielectric in composition and can monitor both electrib field strength and direction. The described sensor has a linear sensing range between 100 V/m and 1 x 107 V/m and an AC measurement bandwidth capability which approaches a 1 GHz which is more than adequate for lightning research. The effect of electro-optic crystal geometry on fiber optic sensor measurement range and measurement bandwidth is discussed. A method of utilizing a single electro-optic crystal to make two axis electric field directional measurements is described. A fiber optic electric field sensor configuration which incorporates two electro-optic crystals, and which is capable of measuring electric field direction is described. Sensor test data generated with both DC and AC applied electric fields is presented.
© (1987) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
B. N. Nelson, B. N. Nelson, C. Menzel, C. Menzel, T. G. DiGiuseppe, T. G. DiGiuseppe, } "Fiber Optic Electric Field Sensor Configurations For High Bandwidth Lightning Research Measurement Applications", Proc. SPIE 0720, High Bandwidth Analog Applications of Photonics, (11 March 1987); doi: 10.1117/12.937615; https://doi.org/10.1117/12.937615
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