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Add-drop filters in three-dimensional layer-by-layer photonic crystals using waveguides and resonant cavities

Appl. Phys. Lett. 89, 231103 (2006); doi:10.1063/1.2400398

Published 4 December 2006

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Preeti Kohli, Caleb Christensen, and Jason Muehlmeier
Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011 and Microelectronics Research Center, Iowa State University, Ames, Iowa 50011

Rana Biswas
Departments of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011; Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011; Microelectronics Research Center, Iowa State University, Ames, Iowa 50011; and Ames Laboratory, Iowa State University, Ames, Iowa 50011

Gary Tuttle
Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011; Ames Laboratory, Iowa State University, Ames, Iowa 50011; and Microelectronics Research Center, Iowa State University, Ames, Iowa 50011

Kai-Ming Ho
Ames Laboratory, Iowa State University, Ames, Iowa 50011 and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011
A three-dimensional layer-by-layer photonic crystal with a complete photonic band gap is used to experimentally and theoretically demonstrate a sharp tunable bandpass filter. The structure consists of input and output waveguide sections coupled through a nearby cavity. The authors show experimentally and verify with finite difference time domain simulations that this configuration is a bandpass filter where a particular resonant frequency of the cavity is selected from the input guide and transmitted to the output guide leaving out other input frequencies. An excellent coupling efficiency near 100% between the waveguide and the cavity is found for the drop frequencies. ©2006 American Institute of Physics
History: Received 7 September 2006; accepted 22 October 2006; published 4 December 2006
Permalink: http://link.aip.org/link/?APPLAB/89/231103/1
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KEYWORDS and PACS

Keywords
PACS
  • 42.79.Ci
    Optical filters, zone plates, and polarizers including spatial filters
  • 42.70.Qs
    Photonic bandgap materials
  • 42.79.Gn
    Optical waveguides and couplers
  • YEAR: 2006

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PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
Publisher:
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REFERENCES (12)
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