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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 21, Iss. 5 — Mar. 1, 1996
  • pp: 342–344

Use of radio-frequency-pulse surface acoustic wave profilometry for passband engineering of acousto-optic tunable filters

H. Rashid, D. A. Smith, Z. Bao, R. S. Chakravarthy, M. A. Pathan, N. Imam, K. Kissa, and J. Kallman  »View Author Affiliations


Optics Letters, Vol. 21, Issue 5, pp. 342-344 (1996)
http://dx.doi.org/10.1364/OL.21.000342


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Abstract

One can determine the acoustic profile of an acousto-optic tunable filter (AOTF) either by measuring the intensity of a laser diffracted off the surface of an AOTF by the surface acoustic wave (SAW) or by measuring the optical output power of an AOTF as a short burst of rf energy is launched down the device. This rf-burst technique (also called pulse probing) is compared with the established optical diffraction SAW profilometry technique. We demonstrate the usefulness of rf-burst profilometry to measure the acousto-optic coupling as a function of position along an AOTF interaction region. Such a probe can be used to make adjustments to the acousto-optic coupling in real time to achieve passband shape modification in complex AOTF structures.

© 1996 Optical Society of America

History
Original Manuscript: September 6, 1995
Published: March 1, 1996

Citation
H. Rashid, K. Kissa, J. Kallman, D. A. Smith, Z. Bao, R. S. Chakravarthy, M. A. Pathan, and N. Imam, "Use of radio-frequency-pulse surface acoustic wave profilometry for passband engineering of acousto-optic tunable filters," Opt. Lett. 21, 342-344 (1996)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-21-5-342

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