Microfiber Sagnac Interferometer for sensing applications

Authors

  • Michal Kuczkowski Warsaw University of Technology
  • Cui Ying Research Techno Plaza
  • Xuan Quyen Dinh Research Techno Plaza
  • Perry Ping Shum Nanyang Technological University
  • Katarzyna A. Rutkowska Warsaw Univeristy of Technology
  • Tomasz R. Woliński Warsaw Univeristy of Technology

DOI:

https://doi.org/10.4302/photon.%20lett.%20pl.v4i4.358

Abstract

In this paper we propose an optical fiber-based refractive index and temperature sensor using an MNF (micro/nano fiber) inserted in a Sagnac loop interferometer [1]. A portion of the PMF is tapered into a micro/nano dimension to increase the interactions between a guided signal and the surrounding environment. Experimental tests have demonstrated low response to temperature and high sensitivity to refractive index change of a liquid surrounding the MNF. It has been shown that the sensitivity of the setup under test to temperature decreases when a longer MNF is used. The maximum sensitivity for a refractive index achieved equals to 1068nm/RIU, which was obtained by a 4.7-mm long MNF with a diameter of 30um.  

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References
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Published

2012-12-31

How to Cite

Kuczkowski, M., Ying, C., Quyen Dinh, X., Shum, P. P., Rutkowska, K. A., & Woliński, T. R. (2012). Microfiber Sagnac Interferometer for sensing applications. Photonics Letters of Poland, 4(4), pp. 134–136. https://doi.org/10.4302/photon. lett. pl.v4i4.358

Issue

Vol. 4 No. 4 (2012)

Section

Articles

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