FORK-SHAPED, THREE-PORT OPTICAL CIRCULATOR BASED ON A TWO-DIMENSIONAL PHOTONIC CRYSTAL WITH A TRIANGULAR LATTICE

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 waveg...

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Bibliographische Detailangaben
Hauptverfasser:	MARTINS, Leno Rodrigues, PORTELA, Gianni Masaki Tanaka, DMITRIEV, Victor
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES NANOTECHNOLOGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHYSICS SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES TRANSPORTING
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Beschreibung
Zusammenfassung:	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.