2026-10-07T12:45:15Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33823846 2026-09-15T21:28:00Z category_26431 item_type_3 month_year_09_2026

Experimental Wavefront Regulation of Adaptive Optics Systems Using Internal-Model Control Berk Altıner (24957127) Control engineering adaptive optics <p dir="ltr">Adaptive optics systems compensate optical aberrations through closed-loop wavefront correction using deformable mirrors and wavefront sensors. This paper presents an experimental internal-model-based output-regulation framework for rejecting static optical aberrations. First, the dynamics of a 140-actuator deformable mirror are identified from experimental input-output data using a subspace identification method. The identified model is then augmented with an internal model of the disturbance dynamics, and a stabilizing feedback controller is designed for the augmented system. The proposed method is experimentally evaluated on an adaptive optics test bench using controlled Zernike-mode aberrations generated by a second deformable mirror. The closed-loop controller reduces the norm of the measured Zernike wavefront error from 0.7234 to 0.0025 while maintaining the normalized actuator commands within their admissible range. The results demonstrate the effectiveness of internal-model-based output regulation for static wavefront correction in high-dimensional adaptive optics systems.</p> 2026-09-15T00:00:00Z Dataset Dataset 10.6084/m9.figshare.33823846.v2 https://figshare.com/articles/dataset/Experimental_Wavefront_Regulation_of_Adaptive_Optics_Systems_Using_Internal-Model_Control/33823846 CC BY 4.0