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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 17 — Sep. 1, 2012
  • pp: 3483–3485

Wideband subwavelength gratings for coupling between silicon-on-insulator waveguides and optical fibers

Xia Chen, Ke Xu, Zhenzhou Cheng, Christy K. Y. Fung, and Hon K. Tsang  »View Author Affiliations


Optics Letters, Vol. 37, Issue 17, pp. 3483-3485 (2012)
http://dx.doi.org/10.1364/OL.37.003483


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Abstract

We propose and experimentally demonstrate a novel subwavelength grating coupler on silicon-on-insulator, for coupling to optical fibers with a wide optical bandwidth. Theoretical analysis and design optimization of the coupler are described. About 73 nm 1 dB bandwidth was experimentally demonstrated with 5.6dB coupling efficiency. Better than 3.4dB efficiency with 86 nm 1 dB bandwidth is predicted for these structures with optimized buried oxide thickness.

© 2012 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(130.0130) Integrated optics : Integrated optics
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Diffraction and Gratings

History
Original Manuscript: May 17, 2012
Revised Manuscript: July 4, 2012
Manuscript Accepted: July 19, 2012
Published: August 16, 2012

Citation
Xia Chen, Ke Xu, Zhenzhou Cheng, Christy K. Y. Fung, and Hon K. Tsang, "Wideband subwavelength gratings for coupling between silicon-on-insulator waveguides and optical fibers," Opt. Lett. 37, 3483-3485 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-17-3483

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