Exploring the stability and repeatability of a hollow core fibre Raman gas sensor

M. Partridge; I. A. Davidson; W. Brooks; M. Foster; T. D. Bradley; J. R. Hayes; G. T. Jasion; M. N. Petrovich; F. Poletti; D. J. Richardson; N. V. Wheeler

doi:10.1117/12.2541294

28 August 2019 Exploring the stability and repeatability of a hollow core fibre Raman gas sensor

M. Partridge, I. A. Davidson, W. Brooks, M. Foster, T. D. Bradley, J. R. Hayes, G. T. Jasion, M. N. Petrovich, F. Poletti, D. J. Richardson, N. V. Wheeler

Author Affiliations +

Proceedings Volume 11199, Seventh European Workshop on Optical Fibre Sensors; 111991J (2019) https://doi.org/10.1117/12.2541294
Event: Seventh European Workshop on Optical Fibre Sensors, 2019, Limassol, Cyprus

Abstract

In this paper we present an exploration of the stability and repeatability of a hollow core microstructured fibre (HCMOF) Raman gas sensor. Raman gas detection using HC-MOFs is an exciting technique as it enables high sensitivity, multi-species detection using a small gas volume and within a small physical space. Several previous works have demonstrated the utility of HC-MOF fibres as Raman gas cells for the detection of a wide range of gas species such as methane and hydrogen. Here we take a first look at the Raman signal stability (in a single fibre) and signal reproducibility (from fibre-to-fibre). We show that a HC-MOF Raman system can achieve low within-day variability of 0.3 %CV and fibre-to-fibre variability of 7.6 %CV. Understanding the error within systems such as the one presented is critical in the development of HC-MOF-based gas sensors for practical applications.

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M. Partridge, I. A. Davidson, W. Brooks, M. Foster, T. D. Bradley, J. R. Hayes, G. T. Jasion, M. N. Petrovich, F. Poletti, D. J. Richardson, and N. V. Wheeler "Exploring the stability and repeatability of a hollow core fibre Raman gas sensor", Proc. SPIE 11199, Seventh European Workshop on Optical Fibre Sensors, 111991J (28 August 2019); https://doi.org/10.1117/12.2541294

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