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Proceedings Paper

Digital generation of high-quality periodic signals for use with acousto-optic modulators
Author(s): Marek Roland-Mieszkowski; Piotr Kwiek; Antoni Sliwinski
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Paper Abstract

Double ultrasonic beam acousto-optical modulators require high precision driving electric signals for stable control of frequency ratio and phase shift. The high precision digital synthesis method has been developed for the generation of high quality periodic signals. Maximum frequency range of synthesized waveforms is determined by the speed of available random access memory (RAM) and an available D/A converter. A computer-based digital function generator can generate any arbitrary type of signal in the frequency range determined by the speed of RAM and the D/A converter. Frequency stability is determined by the quartz clock of the D/A converter and is in the order of 1/107. Periodic waveforms can be synthesized, stored, and then played continuously by looping through the RAM buffer.

Paper Details

Date Published: 25 November 1992
PDF: 14 pages
Proc. SPIE 1844, Acousto-Optics and Applications, (25 November 1992); doi: 10.1117/12.131930
Show Author Affiliations
Marek Roland-Mieszkowski, Dalhousie Univ. (Canada)
Piotr Kwiek, Univ. of Gdansk (Poland)
Antoni Sliwinski, Univ. of Gdansk (Poland)


Published in SPIE Proceedings Vol. 1844:
Acousto-Optics and Applications

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