This article is cited in 1 paper

Precision optical measurements and metrology

Comparison of characteristics of waveguide refractometric sensors

V. I. Nalivaiko^a, M. A. Ponomareva<sup>ab

a</sup> Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia
^b Novosibirsk State Technical University, 630073, Novosibirsk, Russia

Abstract: The operation of three types of waveguide refractometric sensors–interferometric Mach–Zehnder, interferometric two-mode, and grating waveguide—has been analyzed. The design features of these sensors with division into functional blocks have been considered. The overall dimensions of sensors based on chalcogenide glasses have been calculated to obtain the same detection limit for the gas analyzed medium.

Keywords: refractometric sensor, input grating coupler, chalcogenide glass, detection limit, sensitivity.

Received: 15.08.2019
Revised: 15.08.2019
Accepted: 09.09.2019

DOI: 10.21883/OS.2019.12.48702.249-19

 English version: Optics and Spectroscopy, 2019, 127:6, 1128–1132

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