Abstract

We present what to our knowledge is a novel optical electric-power-sensing system that uses a cascade of a Faraday cell and a Pockels cell. According to Jones-matrix analysis, the electric-power information is contained in the intensity of the emerging light. An instantaneous ac electric-power signal has been observed in real time, and the active power has been measured in the 0–1-kW range. The experimental results are in good agreement with the theoretical analysis and prove the feasibility of the optical sensing system.

© 2001 Optical Society of America

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