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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 10 — May. 15, 2014
  • pp: 3070–3073

Grating-coupled silicon-on-sapphire integrated slot waveguides operating at mid-infrared wavelengths

Yi Zou, Harish Subbaraman, Swapnajit Chakravarty, Xiaochuan Xu, Amir Hosseini, Wei-Cheng Lai, Parker Wray, and Ray T. Chen  »View Author Affiliations


Optics Letters, Vol. 39, Issue 10, pp. 3070-3073 (2014)
http://dx.doi.org/10.1364/OL.39.003070


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Abstract

We demonstrate subwavelength bidirectional grating (SWG) coupled slot waveguide fabricated in silicon-on-sapphire for transverse electric polarized wave operation at 3.4 μm wavelength. Coupling efficiency of 29% for SWG coupler is experimentally achieved. Propagation loss of 11dB/cm has been experimentally obtained for slot waveguides. Two-step taper mode converters with an insertion loss of 0.13 dB are used to gradually convert the strip waveguide mode into slot waveguide mode.

© 2014 Optical Society of America

OCIS Codes
(130.3060) Integrated optics : Infrared
(130.3120) Integrated optics : Integrated optics devices
(230.7370) Optical devices : Waveguides

ToC Category:
Diffraction and Gratings

History
Original Manuscript: March 6, 2014
Revised Manuscript: April 20, 2014
Manuscript Accepted: April 21, 2014
Published: May 15, 2014

Citation
Yi Zou, Harish Subbaraman, Swapnajit Chakravarty, Xiaochuan Xu, Amir Hosseini, Wei-Cheng Lai, Parker Wray, and Ray T. Chen, "Grating-coupled silicon-on-sapphire integrated slot waveguides operating at mid-infrared wavelengths," Opt. Lett. 39, 3070-3073 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-10-3070


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