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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 32, Iss. 13 — May. 1, 1993
  • pp: 2455–2460

Acousto-optic multifrequency modulators: reduction of the phase-grating intermodulation products

M. G. Gazalet, J. C. Kastelik, C. Bruneel, O. Bazzi, and E. Bridoux  »View Author Affiliations


Applied Optics, Vol. 32, Issue 13, pp. 2455-2460 (1993)
http://dx.doi.org/10.1364/AO.32.002455


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Abstract

The multifrequency acousto-optic modulator efficiency is limited mainly by the two-tone, third-order intermodulation products. We show here that a suitable anisotropic interaction can greatly reduce this undesirable effect. Numerical computations have been drawn for a paratellurite acousto-optic cell, and it is shown that a reduction of ∼16 dB can be reached, limited by the acoustic nonlinearity intermodulation products. A specific method for experimental validation, based on optical heterodyning on a photodetector, is presented. The experimental results agree well with the theoretical ones.

© 1993 Optical Society of America

History
Original Manuscript: December 31, 1991
Published: May 1, 1993

Citation
M. G. Gazalet, J. C. Kastelik, C. Bruneel, O. Bazzi, and E. Bridoux, "Acousto-optic multifrequency modulators: reduction of the phase-grating intermodulation products," Appl. Opt. 32, 2455-2460 (1993)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-32-13-2455


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References

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