Wavefront sensing with PHASONG: the phase gradient analyser

François Hénault; Yan Feng; Jean-Jacques Correia; Alain Spang; Laura Schreiber

doi:10.1117/12.3013213

26 August 2024 Wavefront sensing with PHASONG: the phase gradient analyser

François Hénault, Yan Feng, Jean-Jacques Correia, Alain Spang, Laura Schreiber

Proceedings Volume 13100, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI; 131007E (2024) https://doi.org/10.1117/12.3013213
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

Wavefront sensors (WFS) have now become core components in the fields of metrology of optical systems, biomedical optics, or adaptive optics systems for astronomy. However, none of the designs used or proposed so far achieve simultaneously a high spatial resolution at the pupil of the tested optical system and absolute measurement accuracy comparable to those of modern laser-interferometers. This paper presents an improved WFS concept that reaches both previous goals. The device is named Crossed-Sine Phase wavefront Sensor (CSPS) and is based on a fully transparent gradient phase filter located inside a small, compact measurement head. The theoretical principle of the sensor is described in Fourier optics formalism. Numerical simulations confirm that a measurement accuracy of /100 RMS is achievable. The CSPS also offers the advantages of being quasi-achromatic and working on spatially or spectrally extended natural or artificial light sources.

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

Citation Download Citation

François Hénault, Yan Feng, Jean-Jacques Correia, Alain Spang, and Laura Schreiber "Wavefront sensing with PHASONG: the phase gradient analyser", Proc. SPIE 13100, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI, 131007E (26 August 2024); https://doi.org/10.1117/12.3013213

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

Includes PDF, HTML & Video, when available