As an extension of an existing electron-beam deflector, an optical analog-to-digital conversion scheme is presented. As a fast θ modulator, we used a wide-band acousto-optic deflector that performs a voltage-to-optical beam-deflection-angle mapping. Using a GaP acousto-optic deflector, we experimentally demonstrate a proof-of-principle 6-bit analog-to-digital converter.
© 1991 Optical Society of America
Original Manuscript: August 8, 1990
Published: October 20, 1991
Yao Li and Yan Zhang, "Optical analog-to-digital conversion using acousto-optic theta modulation and table lookup," Appl. Opt. 30, 4368-4371 (1991)