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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 21, Iss. 5 — May. 1, 2003
  • pp: 1370–

A Channel Drop Filter Using a Single Defect in a 2-D Photonic Crystal Slab-Defect Engineering With Respect to Polarization Mode and Ratio of Emissions From Upper and Lower Sides

Takashi Asano, Masamitsu Mochizuki, Susumu Noda, Makoto Okano, and Masahiro Imada

Journal of Lightwave Technology, Vol. 21, Issue 5, pp. 1370- (2003)


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Abstract

A detailed theoretical analysis of defect engineering in a channel drop filter consisting of a single point defect near a waveguide in a two-dimensional (2-D) photonic crystal (PC) slab is presented. Initially, engineering of the point defect to control the polarization modes of emitted light is examined. By introducing an elliptical defect laterally shifted from the PC lattice,a single linearly polarized light mode can be selected to emit the majority of light, whereas light emitted from the original circular defect is made up of a range of linearly polarized modes. It is also shown that the ratio of light emitted from the top and bottom side of the defect can be improved considerably by introducing a defect with a stepped section along the vertical axis, thereby increasing the net efficiency of the device.

© 2003 IEEE

Citation
Takashi Asano, Masamitsu Mochizuki, Susumu Noda, Makoto Okano, and Masahiro Imada, "A Channel Drop Filter Using a Single Defect in a 2-D Photonic Crystal Slab-Defect Engineering With Respect to Polarization Mode and Ratio of Emissions From Upper and Lower Sides," J. Lightwave Technol. 21, 1370- (2003)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-21-5-1370

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