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Related Experiment Video

Updated: Jun 22, 2026

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Published on: January 29, 2013

Electric field sensor array from cavity resonance between optical D-fiber and multiple slab waveguides.

Richard Gibson¹, Richard Selfridge, Stephen Schultz

¹Department of Electrical and Computer Engineering, Brigham Young University, 459 Clyde Building, Provo, Utah 84602, USA. rich@gibsonfamily.info

|July 3, 2009

Summary

Researchers created a novel optical fiber sensor array using electro-optic crystals to detect high-energy electromagnetic pulses. This flexible, compact sensor can analyze electric fields within electronic devices with high sensitivity.

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Last Updated: Jun 22, 2026

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

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Published on: January 29, 2013

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

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A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

Area of Science:

Applied Physics
Materials Science
Electrical Engineering

Background:

High-energy electromagnetic pulses require precise measurement.
Existing electric field sensors may lack the necessary spatial resolution or flexibility for in-device analysis.
Optical fiber sensing offers a promising alternative due to its immunity to electromagnetic interference.

Purpose of the Study:

To develop a compact, multi-point electric field sensor array for measuring high-energy electromagnetic pulses.
To leverage optical fiber interrogation and electro-optic crystals for enhanced sensing capabilities.
To enable detailed electric-field analysis within electronic devices.

Main Methods:

Fabrication of a sensor array using D-shaped optical fiber for resonant coupling.
Integration of multiple electro-optic crystals (lithium niobate and potassium titanyl phosphate) onto the fiber platform.
Interrogation of the optical fiber to detect electric field-induced changes.

Main Results:

Demonstration of an electric field sensor array with multiple sensing points on a single optical fiber.
The sensor array exhibits sensitivity to electric fields as low as 100 V/m.
The sensor's small size, flexibility, and dielectric nature make it suitable for in-device measurements.

Conclusions:

The developed optical fiber sensor array is effective for measuring high-energy electromagnetic pulses.
The sensor's design allows for multi-point electric field analysis within electronic devices.
This technology offers a sensitive and versatile solution for electromagnetic pulse characterization.