Modeling and state-space identification of deformable mirrors

A Haber, M Verhaegen - Optics Express, 2020 - opg.optica.org
To develop high-performance controllers for adaptive optics (AO) systems, it is essential to
first derive sufficiently accurate state-space models of deformable mirrors (DMs). However, it …

Modeling, experimental validation, and model order reduction of mirror thermal dynamics

A Haber, JE Draganov, K Heesh, J Cadena… - Optics …, 2021 - opg.optica.org
A large variety of optical systems and devices are highly sensitive to temperature variations
and gradients induced by the absorption of thermal energy. Temperature gradients …

Modeling and system identification of transient STOP models of optical systems

A Haber, JE Draganov, K Heesh, J Tesch… - Optics express, 2020 - opg.optica.org
Structural, Thermal, and Optical Performance (STOP) analysis is important for understanding
the dynamics and for predicting the performance of a large number of optical systems whose …

General approach to precise deformable mirror control

A Haber, T Bifano - Optics express, 2021 - opg.optica.org
We develop a simple and effective control method for accurate control of deformable mirrors
(DMs). For a desired DM surface profile and using batches of observed surface profile data …

Subspace identification of low-dimensional Structural-Thermal-Optical-Performance (STOP) models of reflective optics

A Haber, JE Draganov… - Optical Modeling and …, 2022 - spiedigitallibrary.org
In this paper, we investigate the feasibility of using subspace system identification
techniques for estimating transient Structural-Thermal-Optical Performance (STOP) models …

Subspace identification of temperature dynamics

A Haber - arXiv preprint arXiv:1908.02379, 2019 - arxiv.org
Data-driven modeling and control of temperature dynamics in mechatronics systems and
industrial processes are challenging control engineering problems. This is mainly because …

Data-driven estimation, tracking, and system identification of deterministic and stochastic optical spot dynamics

A Haber, M Krainak - Optics Express, 2023 - opg.optica.org
Stabilization, disturbance rejection, and control of optical beams and optical spots are
ubiquitous problems that are crucial for the development of optical systems for ground and …

Machine learning of transient structural-thermal-optical-performance (STOP) models

A Haber, JE Draganov… - Applications of Machine …, 2022 - spiedigitallibrary.org
In this paper, we investigate the feasibility of using machine learning methods for the
estimation of StructuralThermal-Optical-Performance (STOP) models of reflective optics. We …

Steady-state control and machine learning of large-scale deformable mirror models

A Haber - arXiv preprint arXiv:1911.07456, 2019 - arxiv.org
We use Machine Learning (ML) and system identification validation approaches to estimate
neural network models of large-scale Deformable Mirrors (DMs) used in Adaptive Optics …

A novel method for adaptive control of deformable mirrors

A Haber - Adaptive Optics and Wavefront Control for Biological …, 2022 - spiedigitallibrary.org
For sufficiently wide ranges of applied control signals (control voltages), MEMS and
piezoelectric Deformable Mirrors (DMs), exhibit nonlinear behavior. The nonlinear behavior …