Ultrasensitive microfiber refractive index sensor based on Mach-Zehnder interference of core offset structure

Yun Cheng Liao, Zhi Qiang Mao, Bin Liu, Ling Chen, Juan Liu, Sheng Peng Wan, Xing Dao He, Qiang Wu

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

1 Citation (Scopus)

Abstract

An ultrasensitive microfiber refractive index (RI) sensor was proposed and demonstrated based on the core offset Mach-Zehnder interference (MZI) fiber structure. It consisted of a core offset single-mode fiber (SMF) fusion spliced between two SMFs, where the center SMF was tapered to diameter of few micrometers. The experimental results showed that the sensor exhibits an ultrahigh RI sensitivity of 16485 nm /RIU (RI unit) within the RI range between 1.410 and 1.413 where the core offset and tapered fiber diameter were 7.5 μm and 9 μm, respectively. This proposed fiber sensor has the great potential as a base for biosensor in applications of air pollution monitoring, chemical elements detection and medical diagnostics.

Original languageEnglish
Title of host publication2019 18th International Conference on Optical Communications and Networks, ICOCN 2019
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728127644
DOIs
Publication statusPublished - Aug 2019
Externally publishedYes
Event18th International Conference on Optical Communications and Networks, ICOCN 2019 - Huangshan, China
Duration: 5 Aug 20198 Aug 2019

Publication series

Name2019 18th International Conference on Optical Communications and Networks, ICOCN 2019

Conference

Conference18th International Conference on Optical Communications and Networks, ICOCN 2019
CountryChina
CityHuangshan
Period5/08/198/08/19

Fingerprint Dive into the research topics of 'Ultrasensitive microfiber refractive index sensor based on Mach-Zehnder interference of core offset structure'. Together they form a unique fingerprint.

Cite this