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Proceedings Paper

Broadband, Isotropic, Photonic Electric-Field Meter For Measurements From 10 kHz To Above 1 GHz
Author(s): Keith D. Masterson; Lanny D. Driver
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Paper Abstract

An isotropic, photonic electric-field meter (PEFM-15) having 15 cm resistively tapered dipole elements and Pockels effect electro-optic modulators is used to measure electric fields of 10 to 100 V/m from 10 kHz to beyond 1 GHz. The probe's frequency response is flat within ±3 dB from 30 kHz to 100 MHz except for a region between 1 and 10 MHz where acoustic resonances occur in the LiNbO3 modulator crystals. For a 3 kHz detection bandwidth, the noise equivalent field is approximately 7 V/m, thereby giving a calculated linear dynamic range of 68 dB in field power density. The probe's isotropic response is flat within ±2 dB, and the response of each dipole closely follows the curve predicted by theory. An optical-beam switch that connects the individual dipoles to a laser source and optical receiver is also described.

Paper Details

Date Published: 7 February 1989
PDF: 12 pages
Proc. SPIE 0987, High Bandwidth Analog Applications of Photonics II, (7 February 1989);
Show Author Affiliations
Keith D. Masterson, National Institute of Standards and Technology (United States)
Lanny D. Driver, National Institute of Standards and Technology (United States)

Published in SPIE Proceedings Vol. 0987:
High Bandwidth Analog Applications of Photonics II
Barry T. Neyer, Editor(s)

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