Automated reflective optical system alignment: analysis and experiments

Duan Li; Dmitry Savransky

doi:10.1117/12.2594250

1 August 2021 Automated reflective optical system alignment: analysis and experiments

Duan Li, Dmitry Savransky

Proceedings Volume 11816, Optomechanics and Optical Alignment; 118160B (2021) https://doi.org/10.1117/12.2594250
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

We previously demonstrated automated alignment of a multi-element reflective system using existing internal imaging components and model-based optimal estimation in simulation. Using multiple versions of Kalman filtering, we were able to consistently bring the linear misalignments from around 1 mm to < 5 μm and the angular misalignments from around 500 arcsec to < 6 arcsec. This paper presents our preliminary experimental results and further analysis on the system. Specifically, we conduct information-based observability analysis to investigate the multi-state coupling effect and to evaluate our algorithm design, which provides insight into future improvements. We also discuss the current error sources in the experiments.

Conference Presentation

Citation Download Citation

Duan Li and Dmitry Savransky "Automated reflective optical system alignment: analysis and experiments", Proc. SPIE 11816, Optomechanics and Optical Alignment, 118160B (1 August 2021); https://doi.org/10.1117/12.2594250

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