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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. 3, Iss. 4 — Apr. 23, 2008

Highly sensitive refractometer with a photonic-crystal-fiber long-period grating

Lars Rindorf and Ole Bang  »View Author Affiliations


Optics Letters, Vol. 33, Issue 6, pp. 563-565 (2008)
http://dx.doi.org/10.1364/OL.33.000563


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Abstract

We present highly sensitive refractometers based on a long-period grating in a large-mode-area photonic crystal fiber (PCF). The maximum sensitivity is 1500 nm refractive index unit at a refractive index of 1.33, to our knowledge the highest reported for any fiber grating. The minimal detectable index change is 2 × 10 5 . The high sensitivity is obtained by infiltrating the sample into the holes of the PCF to give a strong interaction between the sample and the probing field.

© 2008 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(230.3990) Optical devices : Micro-optical devices
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings
(060.5295) Fiber optics and optical communications : Photonic crystal fibers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: November 21, 2007
Revised Manuscript: December 12, 2007
Manuscript Accepted: January 29, 2008
Published: March 11, 2008

Virtual Issues
Vol. 3, Iss. 4 Virtual Journal for Biomedical Optics

Citation
Lars Rindorf and Ole Bang, "Highly sensitive refractometer with a photonic-crystal-fiber long-period grating," Opt. Lett. 33, 563-565 (2008)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-33-6-563


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