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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 5 — Feb. 28, 2011
  • pp: 4756–4761

Efficient transmission of crossing dielectric slot waveguides

Runzhou Su, Donghua Tang, Weiqiang Ding, Lixue Chen, and Zhongxiang Zhou  »View Author Affiliations

Optics Express, Vol. 19, Issue 5, pp. 4756-4761 (2011)

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Transmission properties of two crossing dielectric slot waveguides (Si-Air-Si) are investigated using the finite difference in time domain method. Results show that the low transmission of this system mainly results from the reflection and radiation loss rather than the crosstalk. Using a simple method of filling up the crossing slots locally, the reflection, radiation losses and crosstalk are all greatly suppressed. With moderate parameters in this paper, the transmission efficient increases from 35.0% to more than 97% in a wide range of wavelength around 1.55μm. The results and method presented in this paper may be very useful in the application of slot waveguide in micro and nano photonics.

© 2011 Optical Society of America

OCIS Codes
(230.3120) Optical devices : Integrated optics devices
(230.7370) Optical devices : Waveguides

ToC Category:
Integrated Optics

Original Manuscript: January 4, 2011
Revised Manuscript: February 10, 2011
Manuscript Accepted: February 14, 2011
Published: February 25, 2011

Runzhou Su, Donghua Tang, Weiqiang Ding, Lixue Chen, and Zhongxiang Zhou, "Efficient transmission of crossing dielectric slot waveguides," Opt. Express 19, 4756-4761 (2011)

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