Diffraction-limited visible imaging with piezoelectric deformable secondary mirror

Jiahui Zhou; Youming Guo; Kele Chen; Kaiyu Chen; Wenyu Han; Xuejun Rao; Xinlong Fan; Changhui Rao

doi:10.1117/12.3047815

13 December 2024 Diffraction-limited visible imaging with piezoelectric deformable secondary mirror

Jiahui Zhou, Youming Guo, Kele Chen, Kaiyu Chen, Wenyu Han, Xuejun Rao, Xinlong Fan, Changhui Rao

Author Affiliations +

Proceedings Volume 13505, AOPC 2024: Astronomical Technologies and Instrumentation; 1350506 (2024) https://doi.org/10.1117/12.3047815
Event: Applied Optics and Photonics China 2024 (AOPC2024), 2024, Beijing, China

Abstract

The adaptive telescope based on a deformable secondary mirror can effectively simplify the system structure, enhance the telescope’s utilization of light energy, reduce background radiation, and improve the telescope’s observation ability for dim and infrared targets. This paper presents our latest research on adaptive telescopes utilizing piezoelectric deformable secondary mirrors (PDSM). We have developed a 241-unit PDSM with small actuator spacing and installed it on the 1.8-meter adaptive telescope at the Lijiang Observatory in Yunnan, China. This system has successfully captured high-resolution visible near-diffraction limit images of astronomical targets. The imaging Strehl ratio of the system in the visible light band (approximately 640nm) reaches about 0.5, and the tracking accuracy is approximately 0.02 arcseconds. These results suggest that adaptive telescopes utilizing piezoelectric-driven deformable secondary mirrors outperform traditional ’telescope + adaptive optics’ system architecture, enabling significant improvements in high-resolution visible imaging.

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

Citation Download Citation

Jiahui Zhou, Youming Guo, Kele Chen, Kaiyu Chen, Wenyu Han, Xuejun Rao, Xinlong Fan, and Changhui Rao "Diffraction-limited visible imaging with piezoelectric deformable secondary mirror", Proc. SPIE 13505, AOPC 2024: Astronomical Technologies and Instrumentation, 1350506 (13 December 2024); https://doi.org/10.1117/12.3047815

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE