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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 17 — Sep. 1, 2006
  • pp: 2556–2558

Modal coupling in fiber tapers decorated with metallic surface gratings

W. Ding, S. R. Andrews, T. A. Birks, and S. A. Maier  »View Author Affiliations


Optics Letters, Vol. 31, Issue 17, pp. 2556-2558 (2006)
http://dx.doi.org/10.1364/OL.31.002556


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Abstract

An interference-based scheme for fabricating periodic metal gratings on one side of the uniform waist of optical fiber tapers has been developed. Optical characterization of a 5 mm long, 511 nm period gold grating fiber taper with a 10 μ m diameter reveals backward coupling to both guided and radiation modes that is explained by using an analytical mode-coupling analysis. A refractometer based on this grating taper has a high and constant sensitivity over a large refractive index operating range of 1 to 1.41.

© 2006 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(230.1480) Optical devices : Bragg reflectors
(230.4000) Optical devices : Microstructure fabrication

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: May 17, 2006
Manuscript Accepted: June 14, 2006
Published: August 9, 2006

Citation
W. Ding, S. R. Andrews, T. A. Birks, and S. A. Maier, "Modal coupling in fiber tapers decorated with metallic surface gratings," Opt. Lett. 31, 2556-2558 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-17-2556

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