Fiber Optic Electric Field Sensor Configurations For High Bandwidth Lightning Research Measurement Applications

B. N. Nelson; C. Menzel; T. G. DiGiuseppe

doi:10.1117/12.937615

11 March 1987 Fiber Optic Electric Field Sensor Configurations For High Bandwidth Lightning Research Measurement Applications

B. N. Nelson, C. Menzel, T. G. DiGiuseppe

Author Affiliations +

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.

Citation Download Citation

B. N. Nelson, C. Menzel, and 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); https://doi.org/10.1117/12.937615

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