Open Access Paper
21 November 2017 Piezoelectric actuators for active optics
R. Le Letty, F. Barillot, H. Fabbro, Ph. Guay, L. Cadiergues
Author Affiliations +
Proceedings Volume 10568, International Conference on Space Optics — ICSO 2004; 105681J (2017) https://doi.org/10.1117/12.2307991
Event: International Conference on Space Optics 2004, 2004, Toulouse, France
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.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R. Le Letty, F. Barillot, H. Fabbro, Ph. Guay, and L. Cadiergues "Piezoelectric actuators for active optics", Proc. SPIE 10568, International Conference on Space Optics — ICSO 2004, 105681J (21 November 2017); https://doi.org/10.1117/12.2307991
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Actuators

Control systems

Active optics

Laser sources

Amplifiers

Charge-coupled devices

LIDAR

Back to Top