Want to improve your cascade 2-stage AO system? Turn it into a high-performance woofer-tweeter!

Henri-François Raynaud,Caroline Kulcsár,Nelly Cerpa-Urra,Markus Kasper

Imaging and Applied Optics Congress 2022 (3D, AOA, COSI, ISA, pcAOP)（2022）

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摘要

2-stage cascade AO (CAO) systems enable to improve wavefront correction for high-contrast exoplanet imaging. However, 1st stage residuals entering the 2nd stage exhibit see-saw high-frequency oscillations. We propose a compensation procedure which turns the CAO into a woofer-tweeter configuration, thus significantly improving overall performance.

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关键词

cascade,ao,high-performance,woofer-tweeter

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