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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 35, Iss. 7 — Apr. 1, 2010
  • pp: 968–970

Power beam splitter based on photonic crystal row of holes and Brewster effect in SOI waveguides

Andrei V. Tsarev  »View Author Affiliations

Optics Letters, Vol. 35, Issue 7, pp. 968-970 (2010)

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This Letter presents a beam splitter in a silicon-on-insulator (SOI) ridge waveguide loaded by a photonic crystal row of holes close to the Brewster angle. The propagation of the fundamental guided mode in this structure has been examined by the three-dimensional finite-difference time-domain method. It is shown that a TE-polarized optical beam exhibits the Brewster effect at an incident angle of about 39°, giving a small splitting ratio ( < 0.04 ) in a wide spectral range for silica-filled holes with a typical diameter of 200 nm and a spacing of 300 nm. The row of holes close to the Brewster angle is the perspective to be used in developing complementary metal-oxide semiconductor-compatible tunable devices based on multireflector filtering technology.

© 2010 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(230.1360) Optical devices : Beam splitters
(230.7380) Optical devices : Waveguides, channeled
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Integrated Optics

Original Manuscript: November 5, 2009
Revised Manuscript: January 21, 2010
Manuscript Accepted: February 3, 2010
Published: March 24, 2010

Andrei V. Tsarev, "Power beam splitter based on photonic crystal row of holes and Brewster effect in SOI waveguides," Opt. Lett. 35, 968-970 (2010)

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