Fiber optic evanescent field absorption sensor based on a tapered probe: effect of fiber parameters on the response curve

S. K. Khijwania; Banshi Dhar Gupta

doi:10.1117/12.347980

28 April 1999 Fiber optic evanescent field absorption sensor based on a tapered probe: effect of fiber parameters on the response curve

S. K. Khijwania, Banshi Dhar Gupta

Author Affiliations +

Proceedings Volume 3666, International Conference on Fiber Optics and Photonics: Selected Papers from Photonics India '98; (1999) https://doi.org/10.1117/12.347980
Event: International Conference on Fiber Optics and Photonics: Selected Papers from Photonics India '98, 1998, New Delhi, India

Abstract

An experimental study of the fiber-optic evanescent field absorption sensor based on tapered sensing probe is presented. The influences of numerical aperture, core radius of the fiber and the taper ratio on the sensitivity of the sensor are investigated. Increase in the numerical aperture of the fiber increases the sensitivity of the sensor while the decrease in the core radius increases the sensitivity. In addition, for a given fiber, increase in taper ratio increases the sensitivity. The relationship has been found to be linear.

Citation Download Citation

S. K. Khijwania and Banshi Dhar Gupta "Fiber optic evanescent field absorption sensor based on a tapered probe: effect of fiber parameters on the response curve", Proc. SPIE 3666, International Conference on Fiber Optics and Photonics: Selected Papers from Photonics India '98, (28 April 1999); https://doi.org/10.1117/12.347980

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