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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 34 — Dec. 1, 2012
  • pp: 8090–8094

Silicon-on-insulator chip-to-chip coupling via out-of-plane or vertical grating couplers

Miguel Cabezón, Ignacio Garcés, Asier Villafranca, José Pozo, Pragati Kumar, and Andrzej Kaźmierczak  »View Author Affiliations

Applied Optics, Vol. 51, Issue 34, pp. 8090-8094 (2012)

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In this work, we study the possibility of chip-to-chip interconnections via out-of-plane grating couplers or vertical grating couplers (VGCs) fabricated on silicon-on-insulator (SOI) technology. Mathematical and experimental results for the efficiency of coupling light between two such grating couplers have been presented. The VGCs are placed vertically against each other in order to study the effect of spatial misalignments on the light coupling efficiency. Waveguides and VGCs are designed according to standard SOI fabrication processes. A two-dimensional finite-difference time-domain method is used for the simulations. Measurements are performed on different combinations of 4 samples on the chip. Light coupling efficiency of 8dB is achieved and tolerances to misalignments in 3 spatial dimensions are provided.

© 2012 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(130.3120) Integrated optics : Integrated optics devices

ToC Category:
Diffraction and Gratings

Original Manuscript: July 18, 2012
Revised Manuscript: October 4, 2012
Manuscript Accepted: October 22, 2012
Published: November 27, 2012

Miguel Cabezón, Ignacio Garcés, Asier Villafranca, José Pozo, Pragati Kumar, and Andrzej Kaźmierczak, "Silicon-on-insulator chip-to-chip coupling via out-of-plane or vertical grating couplers," Appl. Opt. 51, 8090-8094 (2012)

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