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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 4 — Feb. 21, 2005
  • pp: 1161–1171

Gratings superposed spatially by writing in laterally separated regions

Thomas L. Gradishar and A. Safaai-Jazi  »View Author Affiliations

Optics Express, Vol. 13, Issue 4, pp. 1161-1171 (2005)

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A new type of gratings superposed spatially in laterally separated areas of the guide is introduced and analyzed using coupled-mode theory. The guided mode overlaps the constituent gratings and sees the superposition of them. Also, special characteristics that the structure might synthesize are considered, including one example where a phase-only sampled split grating provides zero response for out-of-band channels. A conventional grating requires both phase- and amplitude- sampling for zero out-of-band channels. The split grating, however, requires alignment of the constituent gratings in addition to requirements on the accuracy of the amplitude and pitch structures.

© 2005 Optical Society of America

OCIS Codes
(060.2340) Fiber optics and optical communications : Fiber optics components
(230.1480) Optical devices : Bragg reflectors
(230.7390) Optical devices : Waveguides, planar
(230.7400) Optical devices : Waveguides, slab

ToC Category:
Research Papers

Original Manuscript: January 5, 2005
Revised Manuscript: January 2, 2005
Published: February 21, 2005

Thomas Gradishar and A. Safaai-Jazi, "Gratings superposed spatially by writing in laterally separated regions," Opt. Express 13, 1161-1171 (2005)

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