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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 23 — Nov. 13, 2006
  • pp: 11304–11311

Numerical analysis of polarization splitter based on vertically coupled microring resonator

Xinlun Cai, Dexiu Huang, and Xinliang Zhang  »View Author Affiliations

Optics Express, Vol. 14, Issue 23, pp. 11304-11311 (2006)

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The performance of a polarization splitter based on vertically coupled microring resonator is rigorously investigated by a combination of a 3D full vectorial film mode matching method with a 3D full vectorial coupled mode theory. The spectral responses of the structure for TE and TM mode are calculated, together with eigenmodes of uncoupled waveguides and scattering matrix of coupling region. The result shows that the response of microring resonator is indeed strongly polarization dependent and the resonance wavelengths are different for TE and TM mode. Such property allows for the design of wavelength-sensitive integrated polarization splitter. The influence of geometrical parameters on splitting ratio is investigated and the results indicate that the structure can have a splitting ratio greater than 20dB at 1.55µm.

© 2006 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(230.1360) Optical devices : Beam splitters
(230.5440) Optical devices : Polarization-selective devices
(230.7370) Optical devices : Waveguides

ToC Category:
Optical Devices

Original Manuscript: August 10, 2006
Revised Manuscript: October 4, 2006
Manuscript Accepted: October 13, 2006
Published: November 13, 2006

Xinlun Cai, Dexiu Huang, and Xinliang Zhang, "Numerical analysis of polarization splitter based on vertically coupled microring resonator," Opt. Express 14, 11304-11311 (2006)

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