Advanced control of ALPAO DMs leads to significant AO performance improvements

I. Boudjema; B. Sinquin; A. Schimpf; H. Forrière; B. Martin; J. Charton

doi:10.1117/12.3020100

27 August 2024 Advanced control of ALPAO DMs leads to significant AO performance improvements

I. Boudjema, B. Sinquin, A. Schimpf, H. Forrière, B. Martin, J. Charton

Proceedings Volume 13097, Adaptive Optics Systems IX; 130970Y (2024) https://doi.org/10.1117/12.3020100
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

The rise of exoplanet research and the growing need for high-capacity free-space optical communication links have placed high demands on the performance of adaptive optics (AO) systems. A key challenge lies in mitigating temporal error, this imposes severe time constraints on the response of deformable mirrors (DM). Recent advancements at ALPAO in the realm of input shaping techniques have yielded promising results, effectively eliminating oscillations and reducing overshoot from 60 to less than 5%. Both, rise time and settling time have been diminished to below 50μs, representing an improvement of one order of magnitude compared to the unshaped case. The solution found is compatible with real-time computing constraints and can be integrated in the DM drive electronics or in separate processing unit.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

I. Boudjema, B. Sinquin, A. Schimpf, H. Forrière, B. Martin, and J. Charton "Advanced control of ALPAO DMs leads to significant AO performance improvements", Proc. SPIE 13097, Adaptive Optics Systems IX, 130970Y (27 August 2024); https://doi.org/10.1117/12.3020100

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