Publication detail

Standard single-mode fiber and hollow-core fiber sensitivity to acoustic vibrations in audible spectrum

DEJDAR, P. ZÁVIŠKA, P. TOMAŠOV, A. HORVÁTH, T. MÜNSTER, P.

Original Title

Standard single-mode fiber and hollow-core fiber sensitivity to acoustic vibrations in audible spectrum

Type

conference paper

Language

English

Original Abstract

Hollow-core fibers (HCF) are increasingly being studied and evaluated for telecommunication, as well as sensing application. They seem to have many advantages compare to standard single-mode fibers (SMF), especially in the area of the cyber-security of optical fiber infrastructures and also information they carrying. In our research we mainly focus on cyber-security issues, especially acoustic sensing. In the paper we evaluate sensitivity of negative curve HCF using a Mach–Zehnder interferometry (MZI). Results are compared with SMF (G.657 in this case). Both fibers were in primary coating with similar length. Sensitivity measurements were conducted within the controlled environment of an anechoic chamber. Results show that both fibers are sensitive to acoustic vibration and with post-processing method based on de-noising of the measured signal, the sensitivity can be improved. The clarity of the captured speech signal was assessed using the Speech Transmission Index for Public Address (STIPA).

Keywords

Acoustic sensitivity; hollow-core fiber; Mach–Zehnder interferometer; single-mode fiber; STIPA; vibration sensor

Authors

DEJDAR, P.; ZÁVIŠKA, P.; TOMAŠOV, A.; HORVÁTH, T.; MÜNSTER, P.

Released

18. 6. 2024

ISBN

0277-786X

Periodical

Proceedings of SPIE

Year of study

13017

Number

1301715

State

United States of America

Pages count

5

URL

https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12999/129992R/Standard-single-mode-fiber-and-hollow-core-fiber-sensitivity-to/10.1117/12.3022465.full#_=_

BibTex

@inproceedings{BUT189485,
  author="Petr {Dejdar} and Pavel {Záviška} and Adrián {Tomašov} and Tomáš {Horváth} and Petr {Münster}",
  title="Standard single-mode fiber and hollow-core fiber sensitivity to acoustic vibrations in audible spectrum",
  booktitle="Optical Sensing and Detection VIII",
  year="2024",
  journal="Proceedings of SPIE",
  volume="13017",
  number="1301715",
  pages="5",
  doi="10.1117/12.3022465",
  issn="0277-786X",
  url="https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12999/129992R/Standard-single-mode-fiber-and-hollow-core-fiber-sensitivity-to/10.1117/12.3022465.full#_=_"
}