11 October 2013 Enhanced optical fiber fluorometer using a periodic perturbation in the fiber core
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Proceedings Volume 8915, Photonics North 2013; 89151L (2013) https://doi.org/10.1117/12.2037798
Event: Photonics North 2013, 2013, Ottawa, Canada
Abstract
Tracing of the specific chemicals and biological agents in a solution is becoming a vital interest in health, security and safety industries. Although a number of standard laboratory-based testing systems exists for detecting such targets, but the fast, real-time and on-site methods could be more efficient and cost-effective. One of the most common ways to detect a target in the solution is to use the fluorophore molecules which will be selectively attached to the targets and will emit or quench the fluorescence in presence of the target. The fiber-optic fluorometers are developed for inexpensive and portable detection. In this paper, we explain a novel multi-segment fiber structure which uses the periodic perturbation on the side-wall of a highly multi-mode fiber to enhance collecting the fluorescent light. This periodic perturbation is fabricated and optimized on the core of the fiber using a CO2 laser. The theoretical explanation to show the physical principle of the structure is followed by the experimental evidence of its functioning.
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Yasser Chiniforooshan, Wojtek J. Bock, Jianjun Ma, "Enhanced optical fiber fluorometer using a periodic perturbation in the fiber core", Proc. SPIE 8915, Photonics North 2013, 89151L (11 October 2013); doi: 10.1117/12.2037798; https://doi.org/10.1117/12.2037798
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