Electric field sensor based on core-replaced optical D-fiber

Eric K. Johnson; Josh M. Kvavle; Richard H. Selfridge; Stephen M. Schultz; Richard Forber; Wen Wang; De Yu Zang

doi:10.1117/12.715384

27 April 2007 Electric field sensor based on core-replaced optical D-fiber

Eric K. Johnson, Josh M. Kvavle, Richard H. Selfridge, Stephen M. Schultz, Richard Forber, Wen Wang, De Yu Zang

Proceedings Volume 6525, Active and Passive Smart Structures and Integrated Systems 2007; 65251X (2007) https://doi.org/10.1117/12.715384
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2007, San Diego, California, United States

Abstract

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.

Citation Download Citation

Eric K. Johnson, Josh M. Kvavle, Richard H. Selfridge, Stephen M. Schultz, Richard Forber, Wen Wang, and 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); https://doi.org/10.1117/12.715384

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