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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 18 — Sep. 15, 2009
  • pp: 2760–2762

Highly efficient crossing structure for silicon-on-insulator waveguides

Pablo Sanchis, Pablo Villalba, Francisco Cuesta, Andreas Håkansson, Amadeu Griol, José V. Galán, Antoine Brimont, and Javier Martí  »View Author Affiliations


Optics Letters, Vol. 34, Issue 18, pp. 2760-2762 (2009)
http://dx.doi.org/10.1364/OL.34.002760


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Abstract

A compact waveguide crossing structure with low transmission losses and negligible crosstalk is demonstrated for silicon-on-insulator circuits. The crossing structure is based on a mode expander optimized by means of a genetic algorithm leading to transmission losses lower than 0.2 dB and crosstalk and reflection losses below 40 dB in a broad bandwidth of 20 nm . Furthermore, the resulting crossing structure has a footprint of only 6 × 6 μ m 2 and does not require any additional fabrication steps.

© 2009 Optical Society of America

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(230.0230) Optical devices : Optical devices
(230.7370) Optical devices : Waveguides

ToC Category:
Integrated Optics

History
Original Manuscript: June 23, 2009
Revised Manuscript: August 11, 2009
Manuscript Accepted: August 12, 2009
Published: September 9, 2009

Citation
Pablo Sanchis, Pablo Villalba, Francisco Cuesta, Andreas Håkansson, Amadeu Griol, José V. Galán, Antoine Brimont, and Javier Martí, "Highly efficient crossing structure for silicon-on-insulator waveguides," Opt. Lett. 34, 2760-2762 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-18-2760

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