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Proceedings Paper

All-optical acousto-optic effect
Author(s): Pankaj K. Das; R. Filkins; Casimer M. DeCusatis; Agostino Abbate
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Paper Abstract

In conventional acousto-optic devices ultrasound signals are generated in a solid medium by applying an RF electrical signal to a piezoelectric transducer, which is bonded to the optical medium. However, it is well known that ultrasound can be generated in solids by sing high power optical pulses incident on the medium. This offers the potential to perform acousto-optic modulation without the piezoelectric transducers and associated electronics. This method can be utilized to modulate a lower power laser beam using a second higher power laser source. Using femtosecond optical pulses, acousto-optic interaction in the terahertz regime becomes feasible. In this paper, these all-optical acousto-optic devices are utilized for signal processing applications. Some preliminary experimental results using laser generated ultrasound in different substrates will be given.

Paper Details

Date Published: 11 November 1998
PDF: 11 pages
Proc. SPIE 3581, Acousto-Optics and Applications III, (11 November 1998);
Show Author Affiliations
Pankaj K. Das, Rensselaer Polytechnic Institute (United States)
R. Filkins, Rensselaer Polytechnic Institute and GE Corporate Research and Development Ctr. (United States)
Casimer M. DeCusatis, IBM Corp. (United States)
Agostino Abbate, Textron Systems (United States)


Published in SPIE Proceedings Vol. 3581:
Acousto-Optics and Applications III
Antoni Sliwinski; Bogumil B. J. Linde; Piotr Kwiek, Editor(s)

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