Department of Electrical and Computer Engineering Seminar Series

Wave-front Sensorless Adaptive Optics

Speaker

Parham Taghinia, PhD student

Institute

Department of Electrical and Computer Engineering

Time & Place

Fri, 06 Aug 2021 14:00:00 NZST in Link 309 Lecture Theatre

Abstract

Atmospheric turbulence causes the phase of optical wavefronts coming from space to be aberrated. Thus, the captured images of the objects from space are blurred. To reclaim the light to its primary planar form, an adaptive optics (AO) system is employed, through which the phase is conjugated. Traditional AO systems exploit wavefront sensors to estimate the atmospheric aberration. However, in recent years, researchers introduced wavefront sensorless AO that can considerably reduce the complexity. Such systems are categorized into model-based and model-free methods. Major progress can be observed with regard to both methods, yet there is remaining room to improve them in terms of accuracy and computation time.