Correlation spectroscopy gas sensor with photonic band-gap fibre reference cell
Correlation spectroscopy gas sensor with photonic band-gap fibre reference cell
Gas-filled microstructured optical fibres [1-4], in particular photonic band-gap fibres (PBGFs), have been suggested as a replacement for bulk-optic cells in optical gas sensors. However, the extended filling time required (~ hours) limits their usefulness in most real-world applications. Recently, sealed gas-filled fibres have been employed as fixed wavelength references for telecommunications [3], where filling time is no longer important.
We now demonstrate the use of a sealed gas-filled PBGF as reference cell in a high-selectivity correlation spectroscopy gas sensor. The advantages of using PBGFs in this application are:- their suitability to sensing hazardous gases (only ~1 µl.m-1 of gas is required); their capability for providing long effective path lengths (because of high overlap between the guided mode and enclosed gas, and very low fibre loss: ~0.05 dB.m-1); and the ability to produce compact gas cells by simply coiling the fibre.
van Brakel, A.
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Austin, E.A.D.
e572af92-dfad-43c4-894b-b966e575586c
Petrovich, Marco
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Richardson, David
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Dakin, John
04891b9b-5fb5-4245-879e-9e7361adf904
2006
van Brakel, A.
f8132bae-ecd1-4336-9ebd-656639cc1c37
Austin, E.A.D.
e572af92-dfad-43c4-894b-b966e575586c
Petrovich, Marco
bfe895a0-da85-4a40-870a-2c7bfc84a4cf
Richardson, David
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Dakin, John
04891b9b-5fb5-4245-879e-9e7361adf904
van Brakel, A., Austin, E.A.D., Petrovich, Marco, Richardson, David and Dakin, John
(2006)
Correlation spectroscopy gas sensor with photonic band-gap fibre reference cell.
EUROPT(R)ODE VIII: Eighth European Conference on Optical Chemical Biosensors, Tubingen, Germany.
02 - 05 Apr 2006.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Gas-filled microstructured optical fibres [1-4], in particular photonic band-gap fibres (PBGFs), have been suggested as a replacement for bulk-optic cells in optical gas sensors. However, the extended filling time required (~ hours) limits their usefulness in most real-world applications. Recently, sealed gas-filled fibres have been employed as fixed wavelength references for telecommunications [3], where filling time is no longer important.
We now demonstrate the use of a sealed gas-filled PBGF as reference cell in a high-selectivity correlation spectroscopy gas sensor. The advantages of using PBGFs in this application are:- their suitability to sensing hazardous gases (only ~1 µl.m-1 of gas is required); their capability for providing long effective path lengths (because of high overlap between the guided mode and enclosed gas, and very low fibre loss: ~0.05 dB.m-1); and the ability to produce compact gas cells by simply coiling the fibre.
More information
Published date: 2006
Venue - Dates:
EUROPT(R)ODE VIII: Eighth European Conference on Optical Chemical Biosensors, Tubingen, Germany, 2006-04-02 - 2006-04-05
Identifiers
Local EPrints ID: 38960
URI: http://eprints.soton.ac.uk/id/eprint/38960
PURE UUID: f258b538-4217-4c7a-a892-24a3a5a69a69
Catalogue record
Date deposited: 14 Jun 2006
Last modified: 16 Mar 2024 03:16
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Contributors
Author:
A. van Brakel
Author:
E.A.D. Austin
Author:
John Dakin
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