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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 4 — Feb. 15, 2006
  • pp: 513–515

Optically tunable microcavity in a planar photonic crystal silicon waveguide buried in oxide

Iwan Märki, Martin Salt, Hans Peter Herzig, Ross Stanley, L. El Melhaoui, P. Lyan, and J. M. Fedeli  »View Author Affiliations


Optics Letters, Vol. 31, Issue 4, pp. 513-515 (2006)
http://dx.doi.org/10.1364/OL.31.000513


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Abstract

We present all-optical tuning and switching of a microcavity inside a two-dimensional photonic crystal waveguide. The photonic crystal structure is fabricated in silicon-on-insulator using complementary metal-oxide semiconductor processing techniques based on deep ultraviolet lithography and is completely buried in a silicon dioxide cladding that provides protection from the environment. By focusing a laser onto the microcavity region, both a thermal and a plasma dispersion effect are generated, allowing tuning and fast modulation of the in-plane transmission. By means of the temporal characteristics of the in-plane transmission, we experimentally identify a slower thermal and a fast plasma dispersion effect with modulation bandwidths of the order of several 100 kHz and up to the gigahertz level, respectively.

© 2006 Optical Society of America

OCIS Codes
(230.1150) Optical devices : All-optical devices
(230.5750) Optical devices : Resonators

ToC Category:
Optical Devices

History
Original Manuscript: September 12, 2005
Revised Manuscript: November 7, 2005
Manuscript Accepted: November 11, 2005

Citation
Iwan Märki, Martin Salt, Hans Peter Herzig, Ross Stanley, L. El Melhaoui, P. Lyan, and J. M. Fedeli, "Optically tunable microcavity in a planar photonic crystal silicon waveguide buried in oxide," Opt. Lett. 31, 513-515 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-4-513


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