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Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 19,
  • Issue 6,
  • pp. 861-
  • (2001)

Tapered Couplers for Efficient Interfacing Between Dielectric and Photonic Crystal Waveguides

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Abstract

We design tapered waveguide junctions for coupling between photonic crystal and traditional dielectric waveguides and evaluate their transmission efficiency. While the transmission efficiency is less than 60% using no taper,the tapered couplers have over 90% power transmission. We show that different types of couplers are needed for efficient coupling into and out of photonic crystal waveguides.

[IEEE ]

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