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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 12 — Jun. 7, 2010
  • pp: 12127–12135

Silicon-on-sapphire integrated waveguides for the mid-infrared

Tom Baehr-Jones, Alexander Spott, Rob Ilic, Andrew Spott, Boyan Penkov, William Asher, and Michael Hochberg  »View Author Affiliations

Optics Express, Vol. 18, Issue 12, pp. 12127-12135 (2010)

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Silicon waveguides are now widely used to guide radiation in the near-infrared, mainly in the wavelength range of 1.1 – 2.2 µm. While low-loss waveguides at longer wavelengths in silicon have been proposed, experimental realization has been elusive. Here we show that single-mode integrated silicon-on-sapphire waveguides can be used at mid-infrared wavelengths. We demonstrate waveguiding at 4.5 µm, or 2222.2 cm−1, with losses of 4.3 ± 0.6 dB/cm. This result represents the first practical integrated waveguide system for the mid-infrared in silicon, and enables a range of new applications.

© 2010 OSA

OCIS Codes
(130.3060) Integrated optics : Infrared
(130.3130) Integrated optics : Integrated optics materials

ToC Category:
Integrated Optics

Original Manuscript: April 20, 2010
Revised Manuscript: May 18, 2010
Manuscript Accepted: May 19, 2010
Published: May 24, 2010

Tom Baehr-Jones, Alexander Spott, Rob Ilic, Andrew Spott, Boyan Penkov, William Asher, and Michael Hochberg, "Silicon-on-sapphire integrated waveguides for the mid-infrared," Opt. Express 18, 12127-12135 (2010)

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