Direct model-based wavefront sensorless method with a fixed number of measurements

Direct model-based wavefront sensorless method with a fixed number of measurements

In wavefront sensorless (WFSL) adaptive optics, the intensity image in the observation plane, instead of the wavefront sensor, is utilised to estimate the input aberration. The number of intensity measurements is critical for applications with ever-changing phase aberration, such as astronomical ima...

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Veröffentlicht in:Optics continuum 2022-12, Vol.1 (12), p.2460
Hauptverfasser: Taghinia, Parham, Clare, Richard, Weddell, Stephen, Yang, Le
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container_title Optics continuum
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creator Taghinia, Parham
Clare, Richard
Weddell, Stephen
Yang, Le
description In wavefront sensorless (WFSL) adaptive optics, the intensity image in the observation plane, instead of the wavefront sensor, is utilised to estimate the input aberration. The number of intensity measurements is critical for applications with ever-changing phase aberration, such as astronomical imaging. This paper details two direct WFSL methods that need a fixed number of intensity measurements to estimate the input aberration. The proposed methods adopt a zonal approach rather than a modal one to estimate the phase aberration. Simulation results demonstrate that after applying the proposed methods, the aberration correction percentage can rise by approximately 70% for large aberrations.
doi_str_mv 10.1364/OPTCON.470914
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title Direct model-based wavefront sensorless method with a fixed number of measurements
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