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Applied Optics

Applied Optics


  • Vol. 39, Iss. 31 — Nov. 1, 2000
  • pp: 5773–5777

High-efficiency light coupling in a submicrometric silicon-on-insulator waveguide

Régis Orobtchouk, Abdelhalim Layadi, Hamid Gualous, Daniel Pascal, Alain Koster, and Suzanne Laval  »View Author Affiliations

Applied Optics, Vol. 39, Issue 31, pp. 5773-5777 (2000)

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Light coupling into a sub-micrometer-thick waveguide is usually done through a grating coupler. Coupling efficiency is strongly enhanced by addition of a mirror above the grating. This new kind of coupler can be designed to achieve efficiencies as great as 80%. Numerical calculations for a high-angular-spread Gaussian incident beam are compared with experimental results obtained for a standard silicon-on-insulator waveguide.

© 2000 Optical Society of America

OCIS Codes
(230.1950) Optical devices : Diffraction gratings
(230.7390) Optical devices : Waveguides, planar
(310.2790) Thin films : Guided waves

Original Manuscript: February 9, 2000
Revised Manuscript: June 19, 2000
Published: November 1, 2000

Régis Orobtchouk, Abdelhalim Layadi, Hamid Gualous, Daniel Pascal, Alain Koster, and Suzanne Laval, "High-efficiency light coupling in a submicrometric silicon-on-insulator waveguide," Appl. Opt. 39, 5773-5777 (2000)

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