Paper
23 May 2005 Optical fibre sensors based on the dynamic response of fibre lasers
George Stewart, V. Karthik, Gillian Whitenett
Author Affiliations +
Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.624387
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium
Abstract
We propose a optical fibre sensor system based on performing measurements during the transient period of operation of fibre lasers which may have potential for realising several types of sensor. Detailed experimental and theoretical study of the dynamics of a erbium fibre ring laser have been carried out, with simulation of the full transient period in order to characterise its operation. The results reveal how certain features of the dynamic response may be analytically related to the cavity parameters but also indicate the important role of spontaneous emission in determining the exact details of the response due to the involvement of a large number of cavity modes during the relaxation period. The principles may be applied for sensing by use of an intra-cavity sensor element which modifies the cavity properties in response to the measurand and by analysis of the cavity output in both time and spectral domains.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
George Stewart, V. Karthik, and Gillian Whitenett "Optical fibre sensors based on the dynamic response of fibre lasers", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.624387
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Cited by 2 scholarly publications.
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KEYWORDS
Sensors

Fiber lasers

Erbium

Optical fibers

Chemical elements

Optical simulations

Absorption

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