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Global tip-tilt and high-order aberration correction with plenoptic wavefront sensors in closed-loop AO systems

Zhang, Zhentao and Morris, Tim and Bharmal, Nazim and Liang, Yonghui (2021) 'Global tip-tilt and high-order aberration correction with plenoptic wavefront sensors in closed-loop AO systems.', Applied Optics, 60 (14). 4208 - 4216.

Abstract

The plenoptic wavefront sensor (PlWFS) has been proposed as being suitable for operating on extended objects in adaptive optics (AO) systems. We propose a new self-referencing method that uses the cell image of PlWFS as a correlation reference and enables the simultaneous measurement of high-order aberrations and tilt. Simulations have been performed for different operating conditions to verify the feasibility of the proposed method. These show that using the cell image results in better AO performance compared to existing reference generation techniques and allows stable wavefront tilt control with a small residual variance.

Item Type:Article
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Available under License - Creative Commons Attribution 4.0.
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1364/AO.420729
Publisher statement:Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
Date accepted:20 April 2021
Date deposited:13 October 2021
Date of first online publication:21 April 2021
Date first made open access:13 October 2021

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