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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 36, Iss. 12 — Jun. 15, 2011
  • pp: 2233–2235

High-sensitivity, evanescent field refractometric sensor based on a tapered, multimode fiber interference

Pengfei Wang, Gilberto Brambilla, Ming Ding, Yuliya Semenova, Qiang Wu, and Gerald Farrell  »View Author Affiliations


Optics Letters, Vol. 36, Issue 12, pp. 2233-2235 (2011)
http://dx.doi.org/10.1364/OL.36.002233


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Abstract

We propose and experimentally demonstrate an enhanced evanescent field fiber refractometer based on a tapered multimode fiber sandwiched between two single-mode fibers. Experiments show that this fiber sensor offers ultrahigh sensitivity [better than 1900   nm / RIU at a refractive index (RI) of 1.44] for RI measurements within the range of 1.33 – 1.44 , in agreement with the theoretical predictions. This is the highest value reported to date (to our knowledge) in the literature.

© 2011 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: April 5, 2011
Revised Manuscript: May 13, 2011
Manuscript Accepted: May 17, 2011
Published: June 7, 2011

Citation
Pengfei Wang, Gilberto Brambilla, Ming Ding, Yuliya Semenova, Qiang Wu, and Gerald Farrell, "High-sensitivity, evanescent field refractometric sensor based on a tapered, multimode fiber interference," Opt. Lett. 36, 2233-2235 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-12-2233

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