A composite piezoelectric deformable mirror with woofer-tweeter configuration

Kaiye Bao; Licheng Yu; Jianqiang Ma

doi:10.1117/12.3007361

18 December 2023 A composite piezoelectric deformable mirror with woofer-tweeter configuration

Kaiye Bao, Licheng Yu, Jianqiang Ma

Proceedings Volume 12965, AOPC 2023: Novel Technologies and Instruments for Astronomical Imaging and Spectroscopy; 1296509 (2023) https://doi.org/10.1117/12.3007361
Event: Applied Optics and Photonics China 2023 (AOPC2023), 2023, Beijing, China

Abstract

A composite piezoelectric deformable mirror (DM) with woofer-tweeter configuration is proposed for astronomy applications. This DM consists of unimorph DM and piezoelectric actuators array. Compared with conventional DM, the composite piezoelectric DM has a characteristic of both large stroke and high bandwidth, which is suitable for correcting those aberrations introduced by atmospheric turbulence in real time. The prototype of the composite DM is prepared, and an adaptive optical testing system based on Shack-Hartmann sensor is established. Experimental results indicate that the woofer–tweeter DM has the capability to compensate for the first 20 terms of Zernike aberrations with normalized RMS wavefront errors less than 15%. The proposed composite piezoelectric DM has good performance and great potential in astronomical applications.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Kaiye Bao, Licheng Yu, and Jianqiang Ma "A composite piezoelectric deformable mirror with woofer-tweeter configuration", Proc. SPIE 12965, AOPC 2023: Novel Technologies and Instruments for Astronomical Imaging and Spectroscopy, 1296509 (18 December 2023); https://doi.org/10.1117/12.3007361

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