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Related Experiment Video

Updated: Jul 6, 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

Optical electric-power-sensing system using faraday and pockels cells.

Y Li, C Li, T Yoshino

|March 28, 2008

Summary

A new optical electric-power-sensing system uses Faraday and Pockels cells to measure real-time AC power. This novel system successfully measured active power in the 0-1 kW range, proving its feasibility.

Area of Science:

Optoelectronics
Electrical Engineering
Photonics

Background:

Traditional electric power sensing methods can be limited in real-time measurement capabilities.
Optical sensing offers potential advantages in non-contact and high-speed measurements.

Purpose of the Study:

To introduce and validate a novel optical system for sensing electric power.
To demonstrate real-time measurement of AC electric power using optical components.

Main Methods:

Utilized a cascade configuration of a Faraday cell and a Pockels cell.
Employed Jones-matrix analysis to determine the relationship between light intensity and electric power.
Conducted experiments to measure active power within a specific range.

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Last Updated: Jul 6, 2026

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

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Published on: January 29, 2013

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Main Results:

Observed an instantaneous AC electric-power signal in real time.
Successfully measured active power in the 0-1 kW range.
Experimental results showed strong agreement with theoretical predictions.

Conclusions:

The developed optical system is a novel and feasible approach for electric power sensing.
The system demonstrates the capability for real-time monitoring of AC electric power.
Optical sensing principles can be effectively applied to power measurement applications.