Open-loop wavefront sensing in the presence of speckle and weak scintillation

Derek J. Burrell; Mark F. Spencer; Ronald G. Driggers

doi:10.1016/j.optcom.2024.130960

Open-loop wavefront sensing in the presence of speckle and weak scintillation

Derek J. Burrell, Mark F. Spencer, Ronald G. Driggers

Optical Sciences

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

In this paper, we show that speckle averaging helps to reduce the 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 wavefront sensing with noncooperative, extended-source beacons.

Original language	English (US)
Article number	130960
Journal	Optics Communications
Volume	572
DOIs	https://doi.org/10.1016/j.optcom.2024.130960
State	Published - Dec 1 2024

Keywords

Adaptive optics
Atmospheric turbulence
Beacon anisoplanatism
Rough surface scattering
Speckle phenomena
Wavefront sensing

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

Access to Document

10.1016/j.optcom.2024.130960

Cite this

@article{c3987b1512a44f06b2954a1116e25e8b,

title = "Open-loop wavefront sensing in the presence of speckle and weak scintillation",

abstract = "In this paper, we show that speckle averaging helps to reduce the 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 wavefront sensing with noncooperative, extended-source beacons.",

keywords = "Adaptive optics, Atmospheric turbulence, Beacon anisoplanatism, Rough surface scattering, Speckle phenomena, Wavefront sensing",

author = "Burrell, {Derek J.} and Spencer, {Mark F.} and Driggers, {Ronald G.}",

note = "Publisher Copyright: {\textcopyright} 2024 The Authors",

year = "2024",

month = dec,

day = "1",

doi = "10.1016/j.optcom.2024.130960",

language = "English (US)",

volume = "572",

journal = "Optics Communications",

issn = "0030-4018",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Open-loop wavefront sensing in the presence of speckle and weak scintillation

AU - Burrell, Derek J.

AU - Spencer, Mark F.

AU - Driggers, Ronald G.

PY - 2024/12/1

Y1 - 2024/12/1

N2 - In this paper, we show that speckle averaging helps to reduce the 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 wavefront sensing with noncooperative, extended-source beacons.

AB - In this paper, we show that speckle averaging helps to reduce the 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 wavefront sensing with noncooperative, extended-source beacons.

KW - Adaptive optics

KW - Atmospheric turbulence

KW - Beacon anisoplanatism

KW - Rough surface scattering

KW - Speckle phenomena

KW - Wavefront sensing

UR - http://www.scopus.com/inward/record.url?scp=85201477250&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85201477250&partnerID=8YFLogxK

U2 - 10.1016/j.optcom.2024.130960

DO - 10.1016/j.optcom.2024.130960

M3 - Article

AN - SCOPUS:85201477250

SN - 0030-4018

VL - 572

JO - Optics Communications

JF - Optics Communications

M1 - 130960

ER -

Open-loop wavefront sensing in the presence of speckle and weak scintillation

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this