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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 2, Iss. 9 — Sep. 26, 2007

Three-hole microstructured optical fiber for efficient fiber Bragg grating refractometer

Minh Châu Phan Huy, Guillaume Laffont, Véronique Dewynter, Pierre Ferdinand, Philippe Roy, Jean-Louis Auguste, Dominique Pagnoux, Wilfried Blanc, and Bernard Dussardier  »View Author Affiliations


Optics Letters, Vol. 32, Issue 16, pp. 2390-2392 (2007)
http://dx.doi.org/10.1364/OL.32.002390


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Abstract

We present a photosensitive three-hole microstructured optical fiber specifically designed to improve the refractive index sensitivity of a standard fiber Bragg grating (FBG) sensor photowritten in the suspended Ge-doped silica core. We describe the specific photowriting procedure used to realize gratings in such a fiber. We then determine their spectral sensitivity to the refractive index changes of material filling the holes surrounding the core. The sensitivity is compared with that of standard FBGs photowritten in a six-hole fiber with a larger core diameter. We demonstrate an improvement in the sensitivity by two orders of magnitude and reach a resolution of 3 × 10 5 and 6 × 10 6 around mean refractive index values of 1.33 and 1.40, respectively.

© 2007 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(230.3990) Optical devices : Micro-optical devices

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: April 2, 2007
Revised Manuscript: June 8, 2007
Manuscript Accepted: July 2, 2007
Published: August 3, 2007

Virtual Issues
Vol. 2, Iss. 9 Virtual Journal for Biomedical Optics

Citation
Minh Châu Phan Huy, Guillaume Laffont, Véronique Dewynter, Pierre Ferdinand, Philippe Roy, Jean-Louis Auguste, Dominique Pagnoux, Wilfried Blanc, and Bernard Dussardier, "Three-hole microstructured optical fiber for efficient fiber Bragg grating refractometer," Opt. Lett. 32, 2390-2392 (2007)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-32-16-2390


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References

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