Development and implementation of crossed-sine wavefront sensor for simultaneous high spatial resolution imaging

Yan Feng; François Hénault; Laura Schreiber; Alain Spang

doi:10.1117/12.2576165

13 December 2020 Development and implementation of crossed-sine wavefront sensor for simultaneous high spatial resolution imaging

Yan Feng, François Hénault, Laura Schreiber, Alain Spang

Author Affiliations +

Proceedings Volume 11451, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV; 1145145 (2020) https://doi.org/10.1117/12.2576165
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Abstract

The crossed-sine wavefront sensor (WFS), which is based on a gradient transmission filter (GTF) and a 2´2 minilens array (MLA), enables simultaneous achromatic imaging at a high spatial resolution. The GTF is formed by four circular sub-apertures with the crossed-sine pattern for spatial filtering, producing four initial images. The 2´2 MLA, which is placed on the image plane of the optical system, is adjusted to transfer the image of the exit pupil onto the detector array. In this paper, we present the design of the GTF and MLA, and some preliminary experimental tests of the crossed-sine WFS system. For the first prototype, a spatial light modulator (SLM) is utilized to simulate the GTF functions, and an achromat is applied to transfers the pupil images instead of the MLA. The pupil image and the wavefront error have been obtained. This crossed-sine WFS imaging system is user-friendly and will serve a large range of high throughput applications in astronomy, biomedicine and metrology.

Conference Presentation

Citation Download Citation

Yan Feng, François Hénault, Laura Schreiber, and Alain Spang "Development and implementation of crossed-sine wavefront sensor for simultaneous high spatial resolution imaging", Proc. SPIE 11451, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV, 1145145 (13 December 2020); https://doi.org/10.1117/12.2576165

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