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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 11, Iss. 3 — Feb. 10, 2003
  • pp: 215–223

Transmission property and evanescent wave absorption of cladded multimode fiber tapers

Shangping Guo and Sacharia Albin  »View Author Affiliations


Optics Express, Vol. 11, Issue 3, pp. 215-223 (2003)
http://dx.doi.org/10.1364/OE.11.000215


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Abstract

Cladded multimode fiber optic tapers are proposed as chemical sensors using evanescent wave absorption. There is no need to strip the cladding; therefore, fabrication is easy and the taper is mechanically stronger than the taper without cladding. The transmission property and evanescent wave absorption are modeled using ray theory and wave theory, respectively. Effects of some parameters on the absorption sensitivity are analyzed numerically. Due to the presence of the cladding, the taper core is not in direct contact with the external medium, leading to some significant differences from the uncladded one, especially when the index of the external medium approaches the index of cladding or core. Tapers are fabricated and absorption experiments are conducted to show the feasibility of such a chemical sensor.

© 2002 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(300.1030) Spectroscopy : Absorption

ToC Category:
Research Papers

History
Original Manuscript: December 5, 2002
Revised Manuscript: January 30, 2003
Published: February 10, 2003

Citation
Shangping Guo and Sacharia Albin, "Transmission property and evanescent wave absorption of cladded multimode fiber tapers," Opt. Express 11, 215-223 (2003)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-11-3-215


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References

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