Development of a low-cost silica-titania optical platform for integrated photonics applications

This paper investigates a highly attractive platform for an optical waveguide system based on silica-titania material. The paper is organized into two parts. In the first part, an experimental study on the development of an optical waveguide system is conducted via the sol-gel dip-coating method, an...

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Bibliographic Details
Published in:Optics express 2022-06, Vol.30 (13), p.23678-23694
Main Authors: Butt, M. A., Tyszkiewicz, C., Karasiński, P., Zięba, Magdalena, Hlushchenko, D., Baraniecki, T., Kaźmierczak, A., Piramidowicz, R., Guzik, M., Bachmatiuk, A.
Format: Article
Language:English
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Summary:This paper investigates a highly attractive platform for an optical waveguide system based on silica-titania material. The paper is organized into two parts. In the first part, an experimental study on the development of an optical waveguide system is conducted via the sol-gel dip-coating method, and the optical characterization of the waveguide system is performed at a visible wavelength. This system is capable of operating from visible to near-IR wavelength ranges. The experimental results prove the dominance of this waveguide platform due to its low-cost, low loss, and easy to develop integrated optics systems. The numerical analysis of a one-dimensional Photonic crystal waveguide optical filter based on the silica-titania platform is considered in the second part of the paper by utilizing the 2D-finite element method (2D-FEM). A Fabry-Perot structure is also analyzed for refractive index sensing applications. We believe that the results presented in this work will be valuable in the realization of low-cost photonic integrated circuits based on the silica-titania platform.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.460318