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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 3 — Feb. 4, 2008
  • pp: 1600–1609

Ultracompact wavelength and polarization splitters in periodic dielectric waveguides

Wanwen Huang, Yao Zhang, and Baojun Li  »View Author Affiliations

Optics Express, Vol. 16, Issue 3, pp. 1600-1609 (2008)

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A wavelength splitter and a polarization splitter with high compactness and extremely simple structures are designed for optical communication wavelengths. Operation principle of the devices is based on directional coupling in two parallel periodic dielectric waveguides. The device performances have been evaluated by the finite-difference time-domain simulations. The wavelength splitter with a coupling region length of 5 µm can route 1.31 and 1.55 µm wavelengths to corresponding outputs with a transmittance of more than 93%, while the polarization splitter with a coupling region length of 4.6 µm can divide lightwaves in TM and TE polarizations with a degree of polarization higher than 90% at 1.55 µm.

© 2008 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves
(250.5300) Optoelectronics : Photonic integrated circuits

ToC Category:
Integrated Optics

Original Manuscript: November 19, 2007
Revised Manuscript: January 21, 2008
Manuscript Accepted: January 21, 2008
Published: January 23, 2008

Wanwen Huang, Yao Zhang, and Baojun Li, "Ultracompact wavelength and polarization splitters in periodic dielectric waveguides," Opt. Express 16, 1600-1609 (2008)

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