Photonic Crystal Tapers for Coupling Large Ridge Waveguides to Photonic Crystal Waveguides
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ABSTRACTWe present a study of various photonic crystal taper structures each characterized by the taper angle and roughness for coupling light into 2-dimensional photonic crystal waveguides from large ridge waveguides. The photonic crystal waveguide is made of a triangular lattice of holes in a dielectric. The objective is to find a taper structure that offers the best coupling efficiency over a range of widths of the ridge waveguide while leaving a small footprint. We show that such a structure indeed exists and can be further optimized as the width of the ridge waveguide gets even larger leading to more than 90% increase in coupling efficiency in some cases.
2004 ◽
Vol 16
(10)
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pp. 2272-2274
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2001 ◽
Vol 18
(10)
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pp. 1363-1365
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2007 ◽
Vol 24
(9)
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pp. 2075
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2008 ◽
Vol 281
(23)
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pp. 5788-5792
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2003 ◽
Vol 7
(1)
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pp. 38-41
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2004 ◽
Vol 43
(No. 8B)
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pp. L1064-L1067
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