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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 5 — Mar. 10, 2014
  • pp: 5277–5282

Polarization-resolved evanescent wave scattering from gold-coated tilted fiber gratings

Changyu Shen, Wenjun Zhou, and Jacques Albert  »View Author Affiliations


Optics Express, Vol. 22, Issue 5, pp. 5277-5282 (2014)
http://dx.doi.org/10.1364/OE.22.005277


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Abstract

The scatterings of TE- and TM-polarized evanescent wave on the surface of a tilted fiber Bragg grating (TFBG) with a 50 nm thick gold coating were investigated experimentally by observing radiation patterns from discontinuities in the coating. The scattering intensity for TM-polarized light is larger than for TE light when the evanescent wave propagates from the coating towards the discontinuity. The opposite occurs for light propagating from an uncoated section towards the coating edge. However in the latter case the scattering is much weaker. These results confirm that cladding modes with TE and TM polarization can be excited selectively with a TFBG, and that they scatter light differentially at discontinuities. These results are used to propose a simple polarimeter design based on total scattered light intensity monitoring.

© 2014 Optical Society of America

OCIS Codes
(240.0310) Optics at surfaces : Thin films
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings
(290.5855) Scattering : Scattering, polarization

ToC Category:
Fiber Optics

History
Original Manuscript: December 23, 2013
Revised Manuscript: February 20, 2014
Manuscript Accepted: February 20, 2014
Published: February 27, 2014

Citation
Changyu Shen, Wenjun Zhou, and Jacques Albert, "Polarization-resolved evanescent wave scattering from gold-coated tilted fiber gratings," Opt. Express 22, 5277-5282 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-5-5277


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References

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