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Proceedings Paper • Open Access

Piezoelectric actuators for active optics
Author(s): R. Le Letty; F. Barillot; H. Fabbro; Ph. Guay; L. Cadiergues

Paper Abstract

Piezoelectric actuators find their first applications in active space optics. The purpose of this paper is to describe the state of the art and some applications.

Piezo actuators display attractive features for space applications, such as precise positioning, unlubricated, non magnetic and compact features, and low power consumption. However, piezo mechanisms cannot be considered separately from their driving and control electronic. Piezo actuators, such as Amplified Piezo Actuators or Parallel Pre-stressed Actuators, initially designed under CNES contracts, shall find their first space flight applications in optics on the PHARAO Laser bench:
    • fine pointing of the laser beams,
    • laser cavity tuning.
Breadboard mechanisms based on piezo actuators have also been tested for refocusing purposes.

Other applications includes the improvement of the CCD resolution through an oversampling technique, such as in the SOHO/LASCO instrument, fast optical shutter operation, optical filter in combination with a Fabry - Perot interferometer, such as in future LIDAR for earth observation. The first applications shall be described and an overview of the future potential applications shall be given.

Paper Details

Date Published: 21 November 2017
PDF: 5 pages
Proc. SPIE 10568, International Conference on Space Optics — ICSO 2004, 105681J (21 November 2017); doi: 10.1117/12.2307991
Show Author Affiliations
R. Le Letty, CEDRAT TECHNOLOGIES (France)
F. Barillot, CEDRAT TECHNOLOGIES (France)
H. Fabbro, CEDRAT TECHNOLOGIES (France)
Ph. Guay, CNES/DCT/TV/MS (France)
L. Cadiergues, CNES/DCT/TV/MS (France)


Published in SPIE Proceedings Vol. 10568:
International Conference on Space Optics — ICSO 2004
Josiane Costeraste; Errico Armandillo, Editor(s)

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