Comparative study of microfiber and side-polished optical fiber sensors for refractometry in microfluidics

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

A simple theoretical analysis was undertaken to compare the change of guided mode index of microfiber and sidepolished single mode fiber sensors to the refractive index of surrounding fluids. This was followed by an experimental investigation using a broadband Mach-Zehnder interferometer to compare the sensitivity of the two types of sensing fibers by measuring the interferometer response to fluid refractive indices ranging from 1.330 to 1.451. The experiments show that a microfiber sensor of diameter close to 5 ìm and an average length of around 500 ìm generates a response similar to that generated from a side-polished fiber sensor of length 7 mm. A compact microfluidic cell was fabricated to enable a microfiber based refractive index sensor to be used in a microfluidics environment. Experimental refractometric results obtained using this arrangement are reported.
LanguageEnglish
Pages1594-1601
Number of pages8
JournalIEEE Sensors Journal
Volume13
Issue number5
Early online date20 Jan 2013
DOIs
Publication statusPublished - 8 Apr 2013

Fingerprint

microfibers
Fiber optic sensors
Microfluidics
optical fibers
Refractive index
sensors
Sensors
refractivity
fibers
Mach-Zehnder interferometers
Fluids
Fibers
fluids
Single mode fibers
Interferometers
interferometers
broadband
sensitivity
cells
Experiments

Keywords

  • comparative study
  • microfiber
  • side-polished
  • optical fiber sensors
  • refractometry in microfluidics

Cite this

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Comparative study of microfiber and side-polished optical fiber sensors for refractometry in microfluidics. / Duduś, Anna; Blue, Robert R.; Uttamchandani, Deepak G.

In: IEEE Sensors Journal, Vol. 13, No. 5, 08.04.2013, p. 1594-1601.

Research output: Contribution to journalArticle

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