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Refractive index determination of HF acid using, in-situ, monitoring of etched fibre Bragg gratings

Refractive index determination of HF acid using, in-situ, monitoring of etched fibre Bragg gratings
Refractive index determination of HF acid using, in-situ, monitoring of etched fibre Bragg gratings
In this work, based on simple technique of measuring the differential relative shifts of the Bragg resonances between the fundamental mode LP01 and the higher-order modes; LP11, LP02, LP21, LP12, LP31 in an etched FBG, we determine the refractive index of a buffered HF (BHF) acid solution with concentration (20:1) to be ~ 1.360± 0.005 at 1.55µm, and use that to demonstrate precise control the fibre etch diameter during the etching process. The refractive index is calibrated against known indices of liquids and solvents, including water, methanol, acetone, IPA and ethylene glycol. The experimental results were compared with simulations and exhibited excellent agreement.
1
Namiq, Medya, Fouad Namiq
4c1f64fc-8a98-496c-bd0a-63a6a92cbe84
Ibsen, Morten
22e58138-5ce9-4bed-87e1-735c91f8f3b9
Namiq, Medya, Fouad Namiq
4c1f64fc-8a98-496c-bd0a-63a6a92cbe84
Ibsen, Morten
22e58138-5ce9-4bed-87e1-735c91f8f3b9

Namiq, Medya, Fouad Namiq and Ibsen, Morten (2016) Refractive index determination of HF acid using, in-situ, monitoring of etched fibre Bragg gratings. Siegman International School on Lasers, Barcelona, Spain. 24 - 29 Jul 2016. p. 1 .

Record type: Conference or Workshop Item (Poster)

Abstract

In this work, based on simple technique of measuring the differential relative shifts of the Bragg resonances between the fundamental mode LP01 and the higher-order modes; LP11, LP02, LP21, LP12, LP31 in an etched FBG, we determine the refractive index of a buffered HF (BHF) acid solution with concentration (20:1) to be ~ 1.360± 0.005 at 1.55µm, and use that to demonstrate precise control the fibre etch diameter during the etching process. The refractive index is calibrated against known indices of liquids and solvents, including water, methanol, acetone, IPA and ethylene glycol. The experimental results were compared with simulations and exhibited excellent agreement.

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Published date: 2016
Venue - Dates: Siegman International School on Lasers, Barcelona, Spain, 2016-07-24 - 2016-07-29
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 406383
URI: https://eprints.soton.ac.uk/id/eprint/406383
PURE UUID: e0f8e674-06ee-4e32-947b-17ee012e978e

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Date deposited: 10 Mar 2017 10:46
Last modified: 13 Mar 2019 20:16

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Contributors

Author: Medya, Fouad Namiq Namiq
Author: Morten Ibsen

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