Dispersion engineering of photonic crystal waveguides with ring-shaped holes.
نویسندگان
چکیده
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.
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عنوان ژورنال:
- Optics express
دوره 15 13 شماره
صفحات -
تاریخ انتشار 2007