Open-loop wavefront sensing of multiple laser sources using the geometric wavefront sensor on an optical test-bench

Sierra Hickman; Stephen Weddell; Richard Clare

doi:10.1117/12.2630541

29 August 2022 Open-loop wavefront sensing of multiple laser sources using the geometric wavefront sensor on an optical test-bench

Sierra Hickman, Stephen Weddell, Richard Clare

Author Affiliations +

Proceedings Volume 12185, Adaptive Optics Systems VIII; 121858C (2022) https://doi.org/10.1117/12.2630541
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

This paper demonstrates the Geometric Wavefront Sensor (WFS)’s capability to estimate wavefronts of multiple sources on a new optical test-bench in open-loop. The linearity response of the Geometric WFS to individual Zernike modes is measured for each source, and converted into calibration gain factors to generate improved estimations of the wavefront phase aberrations. A novel technique to simulate atmospheric turbulence in the laboratory is explored, and is found to suitably create multiple atmospheric layers artificially. This technique permits for wavefront phase aberrations of multiple sources to be simulated simultaneously with varying degrees of overlapping, i.e. changing the height of the atmospheric turbulence layer, without altering the physical optical path. Finally, atmospheric tomography is demonstrated using the novel technique and calibrated Geometric WFS.

Citation Download Citation

Sierra Hickman, Stephen Weddell, and Richard Clare "Open-loop wavefront sensing of multiple laser sources using the geometric wavefront sensor on an optical test-bench", Proc. SPIE 12185, Adaptive Optics Systems VIII, 121858C (29 August 2022); https://doi.org/10.1117/12.2630541

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