27 April 2007 Electric field sensor based on core-replaced optical D-fiber
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This paper presents a means for creating optical fiber sensors that are capable of detecting electric fields. This novel E-field sensor is formed as part of a contiguous fiber resulting in a flexible and small cross-section device that could be embedded into electronic circuitry. The sensor is formed by partially etching out the core of a D-shaped optical fiber and depositing an electro-optic polymer. Using PMMA and DR1 for proof of concept, we demonstrate the operation of the first in-fiber hybrid waveguide electric field sensor with a sensitivity of less than 100 V/m at a frequency of 2.9 GHz. Sensors optimized for low loss (~1dB) have an estimated E&pgr; of 222 MV/m. A sensor with an E&pgr; of 60 MV/m is also demonstrated with an insertion loss of 14.4 dB.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Eric K. Johnson, Josh M. Kvavle, Richard H. Selfridge, Stephen M. Schultz, Richard Forber, Wen Wang, De Yu Zang, "Electric field sensor based on core-replaced optical D-fiber", Proc. SPIE 6525, Active and Passive Smart Structures and Integrated Systems 2007, 65251X (27 April 2007); doi: 10.1117/12.715384; https://doi.org/10.1117/12.715384


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