Dispersion engineering of photonic crystal waveguides with ring-shaped holes.
Dispersion engineering of photonic crystal waveguides with ring-shaped holes.
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DOI:
10.1364/oe.15.008323
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发表时间:
2007-06
期刊:
影响因子:
3.8
通讯作者:
A. Säynätjoki;M. Mulot;J. Ahopelto;H. Lipsanen
中科院分区:
文献类型:
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作者:
A. Säynätjoki;M. Mulot;J. Ahopelto;H. Lipsanen
The geometry of photonic crystal waveguides with ring-shaped holes is optimized to minimize dispersion in the slow light regime. We found geometries with a nearly constant group index in excess of 20 over a wavelength range of 8 nm. The origin of the low dispersion is related to the widening of the propagating mode close to the lower band gap edge.