Piezo actuators for telescope active optics

Alexandre Pages; Thomas Maillard; Jocelyn Rebufa

doi:10.1117/12.2631346

29 August 2022 Piezo actuators for telescope active optics

Alexandre Pages, Thomas Maillard, Jocelyn Rebufa

Proceedings Volume 12188, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V; 121883B (2022) https://doi.org/10.1117/12.2631346
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

Piezo actuators are commonly used within Fast Steering Mirrors (FSM) for active stabilization, pointing and tracking functions. Such compact mechanisms are requested for Free-Space Optics and Deep Space Optical Communication since they are embedded and offer fast (up to 1kHz) and precise (μRad) tip tilt motion (up to +/-2°) [1]. The use of large amplified actuator within mirror telescope [2] is new and become relevant since it displays enough power, reliability and do not fall apart when a failure occurs: steady state design with high stiffness 64N/μm. The purpose of this paper is to present the development and the qualification of the world largest amplified piezo actuator ever integrated in a telescope tip-tilt mirror of more than 2 meters diameter.

Citation Download Citation

Alexandre Pages, Thomas Maillard, and Jocelyn Rebufa "Piezo actuators for telescope active optics", Proc. SPIE 12188, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V, 121883B (29 August 2022); https://doi.org/10.1117/12.2631346

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