Integrated optical pressure sensor

Authors

  • Андрей Андреевич Козлов (Andrey Kozlov) Perm State University
  • А А Кондаков (A. Kondakow) LLC "Innovation Company Perm Nanotechnologies"
  • Ульяна Олеговна Салгаева (Ulyana Salgaeva) LLC "Innovation Company Perm Nanotechnologies"
  • Анатолий Борисович Волынцев (Anatoly Volyntsev) Perm State University

DOI:

https://doi.org/10.17072/1994-3598-2018-3-24-31

Abstract

The study of a first prototype of an integrated optical pressure sensor based on a ring resonator was presented in the paper. A photopolymer 3D printing method was used for producing of submount (sensor constructive base). This submout has a cavity with reference pressure. We mounted the sensitive element on this submount. The silicon chip with waveguides based on Si3N4 / SiO2 was used as a sensitive element. A theoretical model of an integrated optical pressure sensor was presented in this paper. Computer calculation model was built based on this theoretical model and a sensitivity of the integrated optical pressure sensor was calculated.  A hydraulic comparative calibration system was used for investigation of the sensor properties. A pressure was changed step by step during the experiment and an optical output signal was fixed on every step. As a result a set of spectra was obtained. This set made it possible to calculate the sensitivity of the sensor. The experimental sensitivity of the sensor is different from the calculated one. This may be because the calculation model didn’t take into account the change of a refractive index of waveguides. In addition, this difference may be due to the temperature drift of an optical ring resonator spectrum.

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Published

2018-11-21

How to Cite

Козлов (Andrey Kozlov) А. А., Кондаков (A. Kondakow) А. А., Салгаева (Ulyana Salgaeva) У. О., & Волынцев (Anatoly Volyntsev) А. Б. (2018). Integrated optical pressure sensor. Bulletin of Perm University. Physics, (3(41). https://doi.org/10.17072/1994-3598-2018-3-24-31

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