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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 12 — Jun. 15, 2010
  • pp: 2061–2063

Avoided-crossing-based ultrasensitive photonic crystal fiber refractive index sensor

Tingting Han, Yan-ge Liu, Zhi Wang, Bing Zou, Boyin Tai, and Bo Liu  »View Author Affiliations


Optics Letters, Vol. 35, Issue 12, pp. 2061-2063 (2010)
http://dx.doi.org/10.1364/OL.35.002061


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Abstract

We propose and demonstrate an ultrasensitive photonic crystal fiber refractive index sensor by introducing the avoided-crossing effect in a bent-controlled fluid-filled photonic-bandgap fiber (FF-PBGF). By controlling the bend radius of the FF-PBGF, resonant couplings between the fundamental core mode and the cladding modes are realized and transmission notches are observed in the transmission band of the FF-PBGF. By changing the refractive index or temperature of the bent FF-PBGF, a sensitivity of 32,400 nm per refractive index unit (or 13.1 nm / ° C ) is achieved, which is the highest for a fiber device to date, to our best knowledge.

© 2010 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.4005) Fiber optics and optical communications : Microstructured fibers
(060.5295) Fiber optics and optical communications : Photonic crystal fibers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: April 19, 2010
Revised Manuscript: May 22, 2010
Manuscript Accepted: May 22, 2010
Published: June 10, 2010

Virtual Issues
Vol. 5, Iss. 11 Virtual Journal for Biomedical Optics

Citation
Tingting Han, Yan-ge Liu, Zhi Wang, Bing Zou, Boyin Tai, and Bo Liu, "Avoided-crossing-based ultrasensitive photonic crystal fiber refractive index sensor," Opt. Lett. 35, 2061-2063 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-12-2061


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