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

Duduś, Anna and Blue, Robert R. and Uttamchandani, Deepak G. (2013) Comparative study of microfiber and side-polished optical fiber sensors for refractometry in microfluidics. IEEE Sensors Journal, 13 (5). pp. 1594-1601.

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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.

Creators(s): Duduś, Anna, Blue, Robert R. ORCID logoORCID: https://orcid.org/0000-0002-8598-5210 and Uttamchandani, Deepak G. ORCID logoORCID: https://orcid.org/0000-0002-2362-4874;
Item type:Article
ID code:42856
Keywords:comparative study, microfiber, side-polished, optical fiber sensors, refractometry in microfluidics, Electrical engineering. Electronics Nuclear engineering, Instrumentation, Electrical and Electronic Engineering
Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
Department:Faculty of Engineering > Electronic and Electrical Engineering
University of Strathclyde > University of Strathclyde
Depositing user: Pure Administrator
Date deposited:13 Feb 2013 14:56
Last modified:20 Jan 2021 20:33
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URI:https://strathprints.strath.ac.uk/id/eprint/42856
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