Integrated optics for astronomical interferometry

P. V. S. Marques; A. Ghasempour; D. Alexandre; A. M. P. Leite; P. J. V. Garcia; F. Reynaud

doi:10.1117/12.894418

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26 July 2011 Integrated optics for astronomical interferometry

P. V. S. Marques, A. Ghasempour, D. Alexandre, A. M. P. Leite, P. J. V. Garcia, F. Reynaud

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Proceedings Volume 8001, International Conference on Applications of Optics and Photonics; 800128 (2011) https://doi.org/10.1117/12.894418
Event: International Conference on Applications of Optics and Photonics, 2011, Braga, Portugal

Abstract

Integrated optics is a well established technology that finds its main applications in the fields of optical communication and sensing. However, it is expanding into new areas, and in the last decade application in astronomical interferometry has been explored. In particular, several examples have been demonstrated in the areas of beam control and combination. In this paper, different examples of application integrated optics devices for fabrication of beam combiners for astronomical interferometry is given. For the multiaxial beam combiners, a UV laser direct writing unit is used for mask fabrication. The operation principles of the coaxial combiners fabricated in hybrid sol-gel were validated using an interferometric set-up. These results demonstrate that hybrid sol-gel technology can produce quality devices, opening the possibility of rapid prototyping of new designs and concepts.

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P. V. S. Marques, A. Ghasempour, D. Alexandre, A. M. P. Leite, P. J. V. Garcia, and F. Reynaud "Integrated optics for astronomical interferometry", Proc. SPIE 8001, International Conference on Applications of Optics and Photonics, 800128 (26 July 2011); https://doi.org/10.1117/12.894418

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