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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 10 — Oct. 1, 2007
  • pp: A48–A52

Single- and double-helix chiral fiber sensors

Victor I. Kopp, Victor M. Churikov, Guoyin Zhang, Jonathan Singer, Christopher W. Draper, Norman Chao, Daniel Neugroschl, and Azriel Z. Genack  »View Author Affiliations


JOSA B, Vol. 24, Issue 10, pp. A48-A52 (2007)
http://dx.doi.org/10.1364/JOSAB.24.000A48


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Abstract

Copropagating core and cladding modes in optical fibers can be coupled by a grating with a period greatly exceeding the wavelength, since their propagation constants are similar. In contrast to conventional long-period gratings, in which the modulation is imposed by exposing a photosensitive core to ultraviolet light, we have created chiral long-period gratings with single- or double-helix symmetry by twisting optical fibers with nonconcentric or noncircular cores, respectively, as they pass through a short heat zone. The difference in symmetry between single- and double-helix gratings is manifested in their polarization properties. The use of these gratings as sensors of liquid level and temperature is demonstrated.

© 2007 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2340) Fiber optics and optical communications : Fiber optics components

History
Original Manuscript: March 16, 2007
Revised Manuscript: May 22, 2007
Manuscript Accepted: May 23, 2007
Published: August 8, 2007

Virtual Issues
Photonic Metamaterials (2007) JOSA A

Citation
Victor I. Kopp, Victor M. Churikov, Guoyin Zhang, Jonathan Singer, Christopher W. Draper, Norman Chao, Daniel Neugroschl, and Azriel Z. Genack, "Single- and double-helix chiral fiber sensors," J. Opt. Soc. Am. B 24, A48-A52 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-10-A48

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