Spectral reflectance and transmission modeling of multi-cavity Fabry-Pérot interferometer with ZnO thin films

Marzena Hirsch; Agnieszka Szreder

doi:10.1117/12.2249182

28 September 2016 Spectral reflectance and transmission modeling of multi-cavity Fabry-Pérot interferometer with ZnO thin films

Marzena Hirsch, Agnieszka Szreder

Author Affiliations +

Proceedings Volume 10031, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2016; 1003115 (2016) https://doi.org/10.1117/12.2249182
Event: Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2016, 2016, Wilga, Poland

Abstract

In this paper spectral reflectance and transmission of a low-coherence fiber-optic Fabry-Pérot interferometer with thin ZnO layers is analyzed using a multi-cavity approach. In the investigated setup two standard single-mode optical fibers (SMF-28) with thin ZnO films deposited on their end-faces form an extrinsic Fabry-Pérot interferometer with air cavity. Calculations of the spectral response of the interferometer were performed for different thickness of the layers (50, 100, 150, 200 nm). Based on the obtained results, it can be concluded that the use of ZnO thin films improves the reflectance of the interferometer. Moreover, addition of another cavity can make it possible to perform sensing of two different quantities (e.g. temperature and refractive index). The optimal lengths of the Fabry-Pérot cavities were selected using the results of modelling for achieving the best performance in a sensing application.

Citation Download Citation

Marzena Hirsch and Agnieszka Szreder "Spectral reflectance and transmission modeling of multi-cavity Fabry-Pérot interferometer with ZnO thin films", Proc. SPIE 10031, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2016, 1003115 (28 September 2016); https://doi.org/10.1117/12.2249182

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