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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 10 — Apr. 1, 2008
  • pp: 1363–1367

Characterization of an active control system for holographic setup stabilization

Luciano De Sio, Alessandro Veltri, Alessandro Tedesco, Roberto Caputo, Cesare Umeton, and Andrey V. Sukhov  »View Author Affiliations


Applied Optics, Vol. 47, Issue 10, pp. 1363-1367 (2008)
http://dx.doi.org/10.1364/AO.47.001363


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Abstract

We report on the realization and characterization of an active control system of the optical holographic setup used for fabrication of holographic gratings in liquid-crystalline composite materials. The system exploits a reference diffraction grating and a piezomirror in closed-loop feedback. The piezoelectric mirror exhibits a hysteresis that depends not only on the applied voltage, but also on the history of the mirror motion. In an open-loop configuration, the hysteresis can be reduced by adjusting the delay time between the application of two different control voltage values; in a closed-loop operation, it is possible to eliminate the residual hysteresis. By testing the system in different conditions, it has been shown that residual fluctuations are comparable to the resolution of the piezomirror operation.

© 2008 Optical Society of America

OCIS Codes
(090.2880) Holography : Holographic interferometry
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis
(230.1950) Optical devices : Diffraction gratings

ToC Category:
Holography

History
Original Manuscript: November 26, 2007
Revised Manuscript: January 22, 2008
Manuscript Accepted: February 8, 2008
Published: March 21, 2008

Citation
Luciano De Sio, Alessandro Veltri, Alessandro Tedesco, Roberto Caputo, Cesare Umeton, and Andrey V. Sukhov, "Characterization of an active control system for holographic setup stabilization," Appl. Opt. 47, 1363-1367 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-10-1363

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