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Remote gas analysis using fibre optic links and near infrared adsorption

Stewart, George and Whitenett, Gillian and Marshall, Joanna P. and Johnstone, Walter and Culshaw, Brian and MacLean, Alistair and Mauchline, Iain S. and Moodie, David G. (2004) Remote gas analysis using fibre optic links and near infrared adsorption. Proceedings of SPIE: The International Society for Optical Engineering, 5459 (285). pp. 285-294.

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This paper describes the potential application of optical fibre addressed systems in remote gas spectroscopy. The paper will first describe the basic principles of the spectroscopic measurements and the reasons why such measurements find applications complementing more established mid infrared and electrochemically-based systems. We shall describe some practical field trials and the results obtained there from. Finally we shall discuss the potential offered by new approaches in laser design and system architectures to enhance the range of addressable species and the sensitivity which these remote detection systems may achieve.