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Proceedings Paper

Acousto-optic modulators for use in long-distance laser beam communication systems
Author(s): Leonid Davidovich
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Paper Abstract

In acousto-optics there exists a trade off between the maximum modulation frequency and the maximum incident beam power that can be modulated. A projected increase in power- bandwidth product will lead to a significant increase in transmission distance for long distance atmospheric optical communications. This paper describes our investigation of certain anomalies of the acousto-optic interaction in the region of theoretical upper limit of modulation frequency and of the beam power that can be modulated. The current investigation has shown that under certain conditions the efficiency of AOM performance and its bandwidth could be considerably increased. We further investigated unique properties of multi-order Bragg diffraction structure which can be observed at high modulation frequencies. This paper discusses work in progress which could lead to the development of acousto-optic modulators capable of modulating up to one half watt of optical power at frequencies of up to 100 MHz.

Paper Details

Date Published: 13 August 1993
PDF: 11 pages
Proc. SPIE 1972, 8th Meeting on Optical Engineering in Israel: Optoelectronics and Applications in Industry and Medicine, (13 August 1993); doi: 10.1117/12.151133
Show Author Affiliations
Leonid Davidovich, Jerusalem Optical Link Technologies, Ltd. and Jerusalem College of Technology (Israel)

Published in SPIE Proceedings Vol. 1972:
8th Meeting on Optical Engineering in Israel: Optoelectronics and Applications in Industry and Medicine
Moshe Oron; Itzhak Shladov; Yitzhak Weissman, Editor(s)

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