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FORK-SHAPED, THREE-PORT OPTICAL CIRCULATOR BASED ON A TWO-DIMENSIONAL PHOTONIC CRYSTAL WITH A TRIANGULAR LATTICE
FORK-SHAPED, THREE-PORT OPTICAL CIRCULATOR BASED ON A TWO-DIMENSIONAL PHOTONIC CRYSTAL WITH A TRIANGULAR LATTICE
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机译:基于二维光子晶体并带有三角形格子的叉形三端口光学循环器
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摘要
The present invention is based on a two-dimensional photonic crystal in which are inserted three waveguides and one resonant cavity by the creation of linear and local defects. Due to the photonic band gap related to the photonic crystal, electromagnetic signals are confined to the interior of waveguides and resonant cavity. By exciting dipole modes in the resonant cavity, with orientation that depends on the intensity of the applied DC magnetic field, the present circulator can provide the nonreciprocal transmission of signals in the clockwise and counterclockwise directions. It can fulfill the isolation function and it is fork-shaped, providing greater flexibility in the design of integrated optical communication systems.
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