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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 21 — Oct. 12, 2009
  • pp: 19225–19233

Design of miniaturized silicon wire and slot waveguide polarization splitter based on a resonant tunneling

Masa-aki Komatsu, Kunimasa Saitoh, and Masanori Koshiba  »View Author Affiliations


Optics Express, Vol. 17, Issue 21, pp. 19225-19233 (2009)
http://dx.doi.org/10.1364/OE.17.019225


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Abstract

We propose an ultra-small polarization splitter based on a resonant tunneling phenomenon. This polarization splitter consists of two identical horizontally oblong silicon wire waveguides separated by a vertical slot waveguide. The structural parameters of the central resonant slot waveguide are designed to couple only the TM-like mode between the left and right side silicon wire waveguides. Results from numerical simulation with the full-vectorial beam propagation method show that a 16-μm-long polarization splitter with extinction ratio better than −20 dB on the entire C-band is achieved.

© 2009 OSA

OCIS Codes
(230.1360) Optical devices : Beam splitters
(230.3120) Optical devices : Integrated optics devices
(230.5440) Optical devices : Polarization-selective devices
(230.7380) Optical devices : Waveguides, channeled

ToC Category:
Optical Devices

History
Original Manuscript: September 4, 2009
Revised Manuscript: September 25, 2009
Manuscript Accepted: October 1, 2009
Published: October 8, 2009

Citation
Masa-aki Komatsu*, Kunimasa Saitoh, and Masanori Koshiba, "Design of miniaturized silicon wire and slot waveguide polarization splitter
based on a resonant tunneling," Opt. Express 17, 19225-19233 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-21-19225


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References

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