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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 12 — Jun. 9, 2008
  • pp: 8649–8657

Silicon cross-connect filters using microring resonator coupled multimode-interference-based waveguide crossings

Fang Xu and Andrew W. Poon  »View Author Affiliations

Optics Express, Vol. 16, Issue 12, pp. 8649-8657 (2008)

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We report silicon cross-connect filters using microring resonator coupled multimode-interference (MMI) based waveguide crossings. Our experiments reveal that the MMI-based cross-connect filters impose lower crosstalk at the crossing than the conventional cross-connect filters using plain crossings, while offering a nearly symmetric resonance line shape in the drop-port transmission. As a proof-of-concept for cross-connection applications, we demonstrate on a silicon-on-insulator substrate (i) a 4- channel 1×4 linear-cascaded MMI-based cross-connect filter, and (ii) a 2- channel 2×2 array-cascaded MMI-based cross-connect filter.

© 2008 Optical Society of America

OCIS Codes
(230.5750) Optical devices : Resonators
(230.7380) Optical devices : Waveguides, channeled

ToC Category:
Optical Devices

Original Manuscript: April 8, 2008
Revised Manuscript: May 22, 2008
Manuscript Accepted: May 23, 2008
Published: May 28, 2008

Fang Xu and Andrew W. Poon, "Silicon cross-connect filters using microring resonator coupled multimode-interference-based waveguide crossings," Opt. Express 16, 8649-8657 (2008)

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