Physics – Optics
Scientific paper
2005-09-14
Physics
Optics
9 pages, 6 figures
Scientific paper
10.1016/j.physleta.2005.04.040
We study the transmission properties for the waveguide bends composed by a circular photonic crystal. Two types (Y and U type) of the waveguide bends utilizing the circular photonic crystal are studied. It has been shown, compared with the conventional photonic crystal waveguide bends, transmission properties for these bends can be significantly improved. Over a 6.4% bandwidth, less than 1-dB loss/bend are observed. U bent waveguide, i.e., $180^o$ bend, can be easily realized with low loss using the circular photonic crystal.
Qiu Min
Xiao Sanshui
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