In-line photonic microcells based on the elliptical microfibers for refractive index sensors applications

Wa Jin, Xuejing Liu, Wei Jin

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


We report the fabrication of in-line photonic microcells (PMCs) by encapsulating tapered elliptical microfibers (MFs) inside glass tubes. The encapsulation does not change the optical property of the MF but protects the elliptical MF from external disturbance and contamination and makes the micro-laboratory robust. Such micro-laboratory can be easily integrated into standard fiber-optic circuits with low loss, making the elliptical MF-based devices more practical for real-world applications. Evanescent field sensing is realized by fabricating micro-channel on the PMC for ingress/egress of sample liquids/gas. Based on the encapsulated elliptical MF PMCs, we demonstrated RI sensitivity of 2024 nm per refractive index unit (nm/RIU) in gaseous environment and 21231 nm/RIU in water.
Original languageEnglish
Title of host publicationAOPC 2017
Subtitle of host publicationOptoelectronics and Micro/Nano-Optics
ISBN (Electronic)9781510614017
Publication statusPublished - 1 Jan 2017
EventApplied Optics and Photonics China: Optoelectronics and Micro/Nano-Optics, AOPC 2017 - Beijing, China
Duration: 4 Jun 20176 Jun 2017


ConferenceApplied Optics and Photonics China: Optoelectronics and Micro/Nano-Optics, AOPC 2017


  • Elliptical microfibers
  • In line
  • Photonic microcells
  • Refractive index sensing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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