Study of transmission properties for waveguide bends by use of a circular photonic crystal

Sanshui Xiao, Min Qiu

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Abstract

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◦ bend, can be easily realized with low loss using the circular photonic crystal.
Original languageEnglish
JournalPhysics Letters A
Volume340
Pages (from-to)474-479
ISSN0375-9601
DOIs
Publication statusPublished - 2005
Externally publishedYes

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