High-efficiency electro-optic grating switch with improved performance

Abstract

We present a high-diffraction-efficiency electro-optic grating switch based on a lanthanum-modified lead zirconate titanate ceramic wafer. By the employment of narrow contour-shaped metal electrodes instead of the commonly used indium tin oxide interdigital electrodes, this grating has the advantages of a low intrinsic-diffraction loss, high zero-order light on–off ratio, and fast time response. The zero-order light can be turned off with a voltage of 160 V.

© 1996 Optical Society of America

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