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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 15 — May. 20, 2011
  • pp: 2294–2298

Compact hybrid TM-pass polarizer for silicon-on-insulator platform

Muhammad Alam, J. Stewart Aitchsion, and Mohammad Mojahedi  »View Author Affiliations


Applied Optics, Vol. 50, Issue 15, pp. 2294-2298 (2011)
http://dx.doi.org/10.1364/AO.50.002294


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Abstract

Hybrid waveguides consisting of a metal plane separated from a high-index medium by a low-index spacer have recently attracted a lot of interest. TM and TE modes are guided in two different layers in these structures and their properties can be controlled in different manners by changing the waveguide dimensions and material properties. We examine the effects of different parameters on the characteristics of the two modes in such structures. We show that by properly choosing the dimensions, it is possible to cut off the TE mode while the TM mode can still be guided in a well-confined manner. Using this property of the hybrid guide, we propose a TM-pass polarizer. The proposed device is very compact and compatible with the silicon-on-insulator platform. Finite-difference time-domain simulation indicates that such a polarizer can provide a high extinction of the TE mode for a reasonable insertion loss of the TM mode.

© 2011 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(240.6690) Optics at surfaces : Surface waves
(260.3910) Physical optics : Metal optics
(310.6628) Thin films : Subwavelength structures, nanostructures

ToC Category:
Integrated Optics

History
Original Manuscript: November 24, 2010
Revised Manuscript: March 22, 2011
Manuscript Accepted: March 26, 2011
Published: May 18, 2011

Citation
Muhammad Alam, J. Stewart Aitchsion, and Mohammad Mojahedi, "Compact hybrid TM-pass polarizer for silicon-on-insulator platform," Appl. Opt. 50, 2294-2298 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-15-2294

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