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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 13 — Jul. 1, 2008
  • pp: 1479–1481

Interference effect in scattering loss of high-index-contrast planar waveguides caused by boundary reflections

J. H. Schmid, A. Delâge, B. Lamontagne, J. Lapointe, S. Janz, P. Cheben, A. Densmore, P. Waldron, D.-X. Xu, and K. P. Yap  »View Author Affiliations


Optics Letters, Vol. 33, Issue 13, pp. 1479-1481 (2008)
http://dx.doi.org/10.1364/OL.33.001479


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Abstract

We present theoretical and experimental results on an interference effect caused by boundary reflections on the optical scattering loss in high-index-contrast planar waveguides. Analytical expressions for the polarization-dependent scattering loss are derived using a surface Green’s function. For high-index-contrast waveguides of submicrometer dimensions a significant deviation from accepted theory arises, including scattering loss suppression owing to a thin-film interference effect. Our theoretical predictions are confirmed by loss measurements on silicon-on-insulator channel waveguides.

© 2008 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves
(130.3060) Integrated optics : Infrared
(130.5990) Integrated optics : Semiconductors
(230.7400) Optical devices : Waveguides, slab
(290.5880) Scattering : Scattering, rough surfaces
(290.5825) Scattering : Scattering theory

ToC Category:
Integrated Optics

History
Original Manuscript: April 29, 2008
Revised Manuscript: May 26, 2008
Manuscript Accepted: May 27, 2008
Published: June 25, 2008

Citation
J. H. Schmid, A. Delâge, B. Lamontagne, J. Lapointe, S. Janz, P. Cheben, A. Densmore, P. Waldron, D.-X. Xu, and K. P. Yap, "Interference effect in scattering loss of high-index-contrast planar waveguides caused by boundary reflections," Opt. Lett. 33, 1479-1481 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-13-1479

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