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

Zhang, Zhentao; Morris, Tim; Bharmal, Nazim; Liang, Yonghui

doi:10.1364/ao.420729

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

Zhang, Zhentao; Morris, Tim; Bharmal, Nazim; Liang, Yonghui

Authors

Zhentao Zhang

Professor Timothy Morris t.j.morris@durham.ac.uk
Professor

Dr Nazim Bharmal n.a.bharmal@durham.ac.uk
Senior Adaptive Optics Scientist

Yonghui Liang

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.

Citation

Zhang, Z., Morris, T., Bharmal, N., & Liang, Y. (2021). Global tip-tilt and high-order aberration correction with plenoptic wavefront sensors in closed-loop AO systems. Applied Optics, 60(14), 4208 - 4216. https://doi.org/10.1364/ao.420729

Journal Article Type	Article
Acceptance Date	Apr 20, 2021
Online Publication Date	Apr 21, 2021
Publication Date	May 10, 2021
Deposit Date	Jul 19, 2021
Publicly Available Date	Oct 13, 2021
Journal	Applied Optics
Print ISSN	1559-128X
Electronic ISSN	2155-3165
Publisher	Optica
Peer Reviewed	Peer Reviewed
Volume	60
Issue	14
Pages	4208 - 4216
DOI	https://doi.org/10.1364/ao.420729

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