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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 22 — Oct. 24, 2011
  • pp: 21515–21523

Theoretical investigation for excitation light and fluorescence signal of fiber optical sensor using tapered fiber tip

Yinquan Yuan and Liyun Ding  »View Author Affiliations


Optics Express, Vol. 19, Issue 22, pp. 21515-21523 (2011)
http://dx.doi.org/10.1364/OE.19.021515


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Abstract

For fiber optical sensor made of tapered fiber tip, the effects of the geometrical parameters of tapered tip on two important factors have been investigated. One factor is the intensity of the evanescent wave into fluorescent layer through core-medium interface; the other is the intensity of fluorescence signal transmitted from fluorescent layer to measurement end. A dependence relation of the intensity of fluorescence signal transmitted from fluorescent layer to measurement end upon the geometrical parameters of tapered tip has been obtained. Theoretical results show that the intensity of the evanescent wave into fluorescent layer rises with the decrease of the end diameter of tapered tip, and the increase of the tip length; and the transmitted power of fluorescence signal increases linearly with the increase of the tip length due to the contribution of the side area of tapered tip.

© 2011 OSA

OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(260.2510) Physical optics : Fluorescence
(060.4005) Fiber optics and optical communications : Microstructured fibers

ToC Category:
Sensors

History
Original Manuscript: June 7, 2011
Revised Manuscript: July 22, 2011
Manuscript Accepted: August 25, 2011
Published: October 18, 2011

Virtual Issues
Vol. 6, Iss. 11 Virtual Journal for Biomedical Optics

Citation
Yinquan Yuan and Liyun Ding, "Theoretical investigation for excitation light and fluorescence signal of fiber optical sensor using tapered fiber tip," Opt. Express 19, 21515-21523 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-22-21515


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