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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 27, Iss. 7 — Jul. 1, 2010
  • pp: 1671–1678

Large incident angle tolerance of guided-mode resonant gratings by light coupling via waveguide end faces

Akira Sato, Nobuyuki Iwai, and Makoto Sato  »View Author Affiliations


JOSA A, Vol. 27, Issue 7, pp. 1671-1678 (2010)
http://dx.doi.org/10.1364/JOSAA.27.001671


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Abstract

By designing and fabricating appropriate structures, guided-mode resonant gratings can be used as optical filters to attain extremely narrow bandwidths. This high performance makes it difficult to couple light into a waveguide via the grating, which demands extremely high mechanical accuracy to adjust the incident conditions. This paper shows both numerically and experimentally that the incident angle tolerance is significantly wider when the incident light is coupled into the waveguide through an end face rather than via the grating.

© 2010 Optical Society of America

OCIS Codes
(120.2440) Instrumentation, measurement, and metrology : Filters
(230.1950) Optical devices : Diffraction gratings
(230.7400) Optical devices : Waveguides, slab
(290.3700) Scattering : Linewidth
(050.1755) Diffraction and gratings : Computational electromagnetic methods
(310.2785) Thin films : Guided wave applications

ToC Category:
Diffraction and Gratings

History
Original Manuscript: February 17, 2010
Revised Manuscript: May 17, 2010
Manuscript Accepted: May 18, 2010
Published: June 21, 2010

Citation
Akira Sato, Nobuyuki Iwai, and Makoto Sato, "Large incident angle tolerance of guided-mode resonant gratings by light coupling via waveguide end faces," J. Opt. Soc. Am. A 27, 1671-1678 (2010)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-27-7-1671


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