Fiber optic refractive index sensor using optofluidic anti-resonant reflecting guidance

Ran Gao, Danfeng Lu, Jin Cheng, Zhi Mei Qi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

An optofluidic anti-resonant reflecting guidance has been proposed and experimental demonstrated for the measurement of liquid refractive index. Two micro-channels were fabricated for the delivery of the liquid sample in the hollow core photonic crystal fiber by using femtosecond laser micromachining, serving as an inlet and outlet. The refractive index can be detected by using the resonant condition of the Fabry-Perot resonator, which is interrogated through the wavelength shift and of the lossy dip in the transmission spectrum. The experimental results show that the sensitivity of up to 1328 nm/RIU is achieved for the refractive index in the range from 1.345 to 1.363 RIU, respectively. The proposed sensor appears to have potential applications of precise measurement in chemistry, medicine, and biology.

Original languageEnglish
Title of host publicationAOPC 2017
Subtitle of host publicationFiber Optic Sensing and Optical Communications
EditorsWei Wang, Desheng Jiang, Yanbiao Liao, Kenneth T. V. Grattan, Zi-Sen Zhao, Leping Wei, Weixu Zhang
PublisherSPIE
ISBN (Electronic)9781510614093
DOIs
Publication statusPublished - 2017
Externally publishedYes
EventApplied Optics and Photonics China: Fiber Optic Sensing and Optical Communications, AOPC 2017 - Beijing, China
Duration: 4 Jun 20176 Jun 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10464
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceApplied Optics and Photonics China: Fiber Optic Sensing and Optical Communications, AOPC 2017
Country/TerritoryChina
CityBeijing
Period4/06/176/06/17

Keywords

  • Anti-resonant reflecting guidance
  • Fiber optics sensors
  • Optofluidic
  • Photonic crystal fibers

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