Polymer Optical Fiber Tip Mass Production Etch Mechanism to Achieve CPC Shape for Improved Biosensor Performance

Hafeez Ul Hassan, Ole Bang, Jakob Janting*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

We report on a simple chemical etching method that enables nonlinear tapering of Polymer Optical Fiber (POF) tips to manufacture Compound Parabolic Concentrator (CPC) fiber tips. We show that, counter-intuitively, nonlinear tapering can be achieved by first etching the core and not the cladding. The etching mechanism is modelled and etched tips are characterized both geometrically and optically in a fluorescence glucose sensor chemistry. A Zemax model of the CPC tipped sensor
predicts an optimal improvement in light capturing efficiency of a factor of 3.96 compared to the conventional sensor with a plane-cut fiber tip. A batch of eight CPC fiber tips has been manufactured by the chemical etching method. The batch average showed an increase of a factor of 3.16, which is only 20% less than the predicted value. The method is reproducible and can be up-scaled for mass production.
Original languageEnglish
Article number285
JournalSensors
Volume19
Issue number2
Number of pages12
ISSN1424-8220
DOIs
Publication statusPublished - 2019

Keywords

  • Fiber optic sensors
  • Polymers
  • Blood or tissue constituent monitoring
  • Etching
  • Nonimaging optics

Cite this

@article{de0dc3072a144ea1a7cb87d1c4408c55,
title = "Polymer Optical Fiber Tip Mass Production Etch Mechanism to Achieve CPC Shape for Improved Biosensor Performance",
abstract = "We report on a simple chemical etching method that enables nonlinear tapering of Polymer Optical Fiber (POF) tips to manufacture Compound Parabolic Concentrator (CPC) fiber tips. We show that, counter-intuitively, nonlinear tapering can be achieved by first etching the core and not the cladding. The etching mechanism is modelled and etched tips are characterized both geometrically and optically in a fluorescence glucose sensor chemistry. A Zemax model of the CPC tipped sensorpredicts an optimal improvement in light capturing efficiency of a factor of 3.96 compared to the conventional sensor with a plane-cut fiber tip. A batch of eight CPC fiber tips has been manufactured by the chemical etching method. The batch average showed an increase of a factor of 3.16, which is only 20{\%} less than the predicted value. The method is reproducible and can be up-scaled for mass production.",
keywords = "Fiber optic sensors, Polymers, Blood or tissue constituent monitoring, Etching, Nonimaging optics",
author = "Hassan, {Hafeez Ul} and Ole Bang and Jakob Janting",
year = "2019",
doi = "10.3390/s19020285",
language = "English",
volume = "19",
journal = "Sensors",
issn = "1424-8220",
publisher = "M D P I AG",
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}

Polymer Optical Fiber Tip Mass Production Etch Mechanism to Achieve CPC Shape for Improved Biosensor Performance. / Hassan, Hafeez Ul; Bang, Ole; Janting, Jakob.

In: Sensors, Vol. 19, No. 2, 285, 2019.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Polymer Optical Fiber Tip Mass Production Etch Mechanism to Achieve CPC Shape for Improved Biosensor Performance

AU - Hassan, Hafeez Ul

AU - Bang, Ole

AU - Janting, Jakob

PY - 2019

Y1 - 2019

N2 - We report on a simple chemical etching method that enables nonlinear tapering of Polymer Optical Fiber (POF) tips to manufacture Compound Parabolic Concentrator (CPC) fiber tips. We show that, counter-intuitively, nonlinear tapering can be achieved by first etching the core and not the cladding. The etching mechanism is modelled and etched tips are characterized both geometrically and optically in a fluorescence glucose sensor chemistry. A Zemax model of the CPC tipped sensorpredicts an optimal improvement in light capturing efficiency of a factor of 3.96 compared to the conventional sensor with a plane-cut fiber tip. A batch of eight CPC fiber tips has been manufactured by the chemical etching method. The batch average showed an increase of a factor of 3.16, which is only 20% less than the predicted value. The method is reproducible and can be up-scaled for mass production.

AB - We report on a simple chemical etching method that enables nonlinear tapering of Polymer Optical Fiber (POF) tips to manufacture Compound Parabolic Concentrator (CPC) fiber tips. We show that, counter-intuitively, nonlinear tapering can be achieved by first etching the core and not the cladding. The etching mechanism is modelled and etched tips are characterized both geometrically and optically in a fluorescence glucose sensor chemistry. A Zemax model of the CPC tipped sensorpredicts an optimal improvement in light capturing efficiency of a factor of 3.96 compared to the conventional sensor with a plane-cut fiber tip. A batch of eight CPC fiber tips has been manufactured by the chemical etching method. The batch average showed an increase of a factor of 3.16, which is only 20% less than the predicted value. The method is reproducible and can be up-scaled for mass production.

KW - Fiber optic sensors

KW - Polymers

KW - Blood or tissue constituent monitoring

KW - Etching

KW - Nonimaging optics

U2 - 10.3390/s19020285

DO - 10.3390/s19020285

M3 - Journal article

VL - 19

JO - Sensors

JF - Sensors

SN - 1424-8220

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