Design of a control system for interferometric fringe stabilization system with remote access

Javier Espitia-Gómez; Luciano Ángel-Toro; Daniel Velásquez

doi:10.1117/12.2026402

18 November 2013 Design of a control system for interferometric fringe stabilization system with remote access

Javier Espitia-Gómez, Luciano Ángel-Toro, Daniel Velásquez

Author Affiliations +

Proceedings Volume 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications; 87857K (2013) https://doi.org/10.1117/12.2026402
Event: 8th Ibero American Optics Meeting/11th Latin American Meeting on Optics, Lasers, and Applications, 2013, Porto, Portugal

Abstract

Stability in a fringe pattern is a necessary condition in interferometric processes, such as holography, and not always is enough the use of passive stabilization systems, like holographic tables, in particular, when perturbations are caused by thermal or acoustic variations. For these cases, active systems are required. In this work it is presented the implementation of a control system for interferometric fringes stabilization. The interferometric arrangement characteristics are also discussed, which permits to act independently over each of the interferometer's arms by means of two piezoelectric actuators that change the length of the optical path of light that goes through, in order to perturb the system and simultaneously compensate this perturbation in real time. It is also shown that the proposed system allows evaluating the control system's performance subjected to diverse perturbations, and it is shown how remote access was given to the implemented platform.

Citation Download Citation

Javier Espitia-Gómez, Luciano Ángel-Toro, and Daniel Velásquez "Design of a control system for interferometric fringe stabilization system with remote access", Proc. SPIE 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications, 87857K (18 November 2013); https://doi.org/10.1117/12.2026402

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