High-aperture piezo-driven liquid tunable lens with real-time feedback control

Applied Optics 2026 Open access

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Authors: Shahab Haidarian, Ulrike Wallrabe
DOI: 10.1364/ao.584047
Cited by: 0
References: 29

Abstract

Piezo-driven tunable lenses offer high-aperture, compact size, and fast response, but hysteresis and creep in their piezoelectric actuators limit precision and complicate real-time control. We demonstrate a real-time feedback controller that leverages the direct piezoelectric effect to linearize the system response, enabling efficient linear control algorithms. Running on an FPGA, it delivers a 0.88 ms settling time and

Fields of Study & Subjects

Piezoelectric Actuators and Control Electrowetting and Microfluidic Technologies Advanced optical system design

Publication details

Journal / source
Applied Optics
Volume
65
Issue
6
Pages
1753–1753
Publication date
20 January 2026
Language
EN