Intensity-modulated fiber-optic refractive index and strain sensor based on miniaturized modal interferometer

Na Zhang, Wei Xu, Changyuan Yu, Shanhong You

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)

Abstract

A novel intensity-modulated fiber-optic refractive index (RI) and strain sensor based on modal interferometer (MMI) is proposed. The sensing mechanism is mainly based on the Mach-Zehnder interferometer (MZI) constructed by one down taper spliced between dual up tapers on the single mode fiber (SMF). High-order cladding modes are efficiently excited owing to the mismatch of the mode filed diameter (MFD). Experimental investigations achieve a RI sensitivity of-22.437dBm/RIU and a strain sensitivity of 0.0008dBm/μϵ with R2of 0.9972 and 0.9962 respectively. It has to be noted that this MMI is only made of single SMF and is of low cost and easy fabrication.
Original languageEnglish
Title of host publicationICOCN 2016 - 2016 15th International Conference on Optical Communications and Networks
PublisherIEEE
ISBN (Electronic)9781509034918
DOIs
Publication statusPublished - 10 Mar 2017
Event15th International Conference on Optical Communications and Networks, ICOCN 2016 - Hangzhou, China
Duration: 24 Sep 201627 Sep 2016

Conference

Conference15th International Conference on Optical Communications and Networks, ICOCN 2016
CountryChina
CityHangzhou
Period24/09/1627/09/16

Keywords

  • Mach-Zehnder interferometer
  • miniaturized modal interferometer
  • refractive index
  • strain

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

Cite this