12 May 2014 Design and characterization of composite planar polarimetric interferometer
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Proceedings Volume 9228, Optical Fibers and Their Applications 2014; 92280E (2014) https://doi.org/10.1117/12.2065419
Event: 15th Conference on Optical Fibers and Their Applications, 2014, Lipowy Most, Poland
This paper presents the design and theoretical characterization of a composite uniform-gradient planar waveguide polarimetric interferometer. Presented structure is composed of an Ag+↔Na+ ion-exchange based waveguide formed in Borosilicate 33 glass substrate and a uniform, sol-gel based, silica-titania film. Characteristics of homogeneous sensitivity difference for TE0-TM0, TE0-TE1 and TM0-TM1 modes in function of the uniform film refractive index and the gradient waveguide refractive index profile are given. Because thermal annealing is an inseparable part of the sol-gel process, the gradient index waveguide is subjected to a rediffusion process. The original refractive index profile is flattened. It was shown that a presence of the gradient waveguide increases sensitivity differences over values which can be obtained for single layer uniform silica-titania waveguides. Moreover, it was shown that a range of uniform film thickness values, for which sensitivity difference of the composite structure is maximized, is downshifted to a range which can be much easier obtained with a sol-gel process.
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Cuma Tyszkiewicz, Cuma Tyszkiewicz, Paweł Karasiński, Paweł Karasiński, Roman Rogoziński, Roman Rogoziński, Michał Szponik, Michał Szponik, } "Design and characterization of composite planar polarimetric interferometer", Proc. SPIE 9228, Optical Fibers and Their Applications 2014, 92280E (12 May 2014); doi: 10.1117/12.2065419; https://doi.org/10.1117/12.2065419

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