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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: 2197–2199

Fiber refractometer based on a fiber Bragg grating and single-mode–multimode–single-mode fiber structure

Qiang Wu, Yuliya Semenova, Binbin Yan, Youqiao Ma, Pengfei Wang, Chongxiu Yu, and Gerald Farrell  »View Author Affiliations


Optics Letters, Vol. 36, Issue 12, pp. 2197-2199 (2011)
http://dx.doi.org/10.1364/OL.36.002197


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Abstract

A refractive index (RI) sensor based on a novel fiber structure that consists of a single-mode–multimode–single-mode (SMS) fiber structure followed by a fiber Bragg grating was demonstrated. The multimode fiber in the SMS structure excites cladding modes within output single-mode fiber (SMF) and recouple the reflected cladding Bragg wavelength to the input SMF core. By measuring the relative Bragg wavelength shift between core and cladding Bragg wavelengths, the RI can be determined. Experimentally we have achieved a maximum sensitivity of 7.33 nm / RIU (RI unit) at RI range from 1.324 to 1.439.

© 2011 Optical Society of America

OCIS Codes
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.2370) Fiber optics and optical communications : Fiber optics sensors

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: April 7, 2011
Revised Manuscript: May 6, 2011
Manuscript Accepted: May 7, 2011
Published: June 7, 2011

Citation
Qiang Wu, Yuliya Semenova, Binbin Yan, Youqiao Ma, Pengfei Wang, Chongxiu Yu, and Gerald Farrell, "Fiber refractometer based on a fiber Bragg grating and single-mode–multimode–single-mode fiber structure," Opt. Lett. 36, 2197-2199 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-12-2197

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