Accurate wavefront correction with partial slope information of Shack-Hartmann WFS | Zendy

Shenghu Liu | Zendy; Wang Zhao | Zendy; Lingxi Kong | Zendy; Shuai Wang | Zendy; Kangjian Yang | Zendy; Hongli Guan | Zendy; Chensi Zhao | Zendy; Ping Yang | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Accurate wavefront correction with partial slope information of Shack-Hartmann WFS

Author(s) -

Shenghu Liu,

Wang Zhao,

Lingxi Kong,

Shuai Wang,

Kangjian Yang,

Hongli Guan,

Chensi Zhao,

Ping Yang

Publication year - 2025

Publication title -

ieee photonics technology letters

Language(s) - English

Resource type - Magazines

SCImago Journal Rank - 0.81

H-Index - 157

eISSN - 1941-0174

pISSN - 1041-1135

DOI - 10.1109/lpt.2025.3571739

Subject(s) - engineered materials, dielectrics and plasmas , photonics and electrooptics

In this letter, we report a weighted modal wavefront control method for surmounting the problems of sub-aperture spot missing in Shack-Hartmann wavefront sensors (SHWFS) and the resultant unstable wavefront control. This method supplements the slope information of sub-apertures lacking spots through the modal method, in which the suppression method of model aliasing is proposed to correct inaccurate slope estimates. In this process, an iterative preprocessing method is used to improve the speed of equation solving. Finally, we verified the effectiveness of this method through experiments, and the experimental results showed that when the proportion of sub-apertures lacking spots reaches 60%, the encircled energy Strehl ratio of the corrected far-field spot can still reach 0.8.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Empowering knowledge with every search