Document Type
Article
Publication Date
10-8-2024
Abstract
In this paper, we show that speckle averaging helps to improve adaptive-optics (AO) performance in closed loop as a result of reduced measurement error associated with a Shack–Hartmann wavefront sensor (SHWFS); however, this reduction is rendered ineffective with increasing beacon anisoplanatism. We do so operating in a weak-scintillation regime, where the SHWFS offers robust performance, and using in-plane translation of the illuminated rough surface to accomplish frame-to-frame speckle diversity. Understanding these trade-space limitations is critical when performing AO with non-cooperative, extended-source beacons.
DOI
10.1088/2040-8986/ad7f67
Source Publication
Journal of Optics (ISSN 2040-8978, 2040-8986)
Recommended Citation
Burrell, D. J., Spencer, M. F., & Driggers, R. G. (2024). Closed-loop adaptive optics in the presence of speckle and weak scintillation. Journal of Optics, 26(11), 115608. https://doi.org/10.1088/2040-8986/ad7f67
Comments
© 2024 The Author(s). Published by IOP Publishing Ltd.
This article is published by IOP Publishing, licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Sourced from the published version of record cited below.