Numerical modeling of the propagation constant in a Pd-coated integrated optical waveguide as a function of atmospheric hydrogen concentration
Kuznetsov I. V.1, Perin A. S.1,2
1Tomsk State University of Control Systems and Radioelectronics, Tomsk, Russia
2V.E. Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences,Tomsk, Russia
Email: igor.v.kuznetsov@tusur.ru
In this paper the possibility of hydrogen detection using waveguide structures based on SiN with a thin Pd film deposited on the cladding surface is considered. The dependence of the propagation constant and optical power transmission coefficient on the geometric parameters of the configuration and hydrogen concentration was investigated using numerical modeling methods. Keywords: silicon nitride, hydrogen, photonic sensor.
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