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Proceedings Article

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

[+] Author Affiliations
S. K. Khijwania, Banshi D. Gupta

Indian Institute of Technology/Delhi (India)

Proc. SPIE 3666, International Conference on Fiber Optics and Photonics: Selected Papers from Photonics India '98, 578 (April 28, 1999); doi:10.1117/12.347980
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From Conference Volume 3666

  • International Conference on Fiber Optics and Photonics: Selected Papers from Photonics India '98
  • Anurag Sharma; Banshi D. Gupta; Ajoy K. Ghatak
  • New Delhi, India | December 14, 1998

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.

© (1999) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

S. K. Khijwania and Banshi D. 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, 578 (April 28, 1999); doi:10.1117/12.347980; http://dx.doi.org/10.1117/12.347980


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