MULTIFUNCTIONAL OPTICAL DEVICE BASED ON A TWO-DIMENSIONAL PHOTONIC CRYSTAL AND A MAGNETOOPTIC RESONATOR

MULTIFUNCTIONAL OPTICAL DEVICE BASED ON A TWO-DIMENSIONAL PHOTONIC CRYSTAL AND A MAGNETOOPTIC RESONATOR

The present invention is based on a two-dimensional photonic crystal in which are inserted four waveguides and one resonant cavity. Due to the existence of the photonic band gap, an electromagnetic signal that flows through the device is confined to the interior of the cavity and waveguides and, by...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PORTELA, Gianni Masaki Tanaka, DMITRIEV, Victor
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING
FREQUENCY-CHANGING
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICAL LOGIC ELEMENTS
OPTICS
PHYSICS
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:The present invention is based on a two-dimensional photonic crystal in which are inserted four waveguides and one resonant cavity. Due to the existence of the photonic band gap, an electromagnetic signal that flows through the device is confined to the interior of the cavity and waveguides and, by adjusting the orientation of a dipole mode excited in the resonator, it can operate in three distinct regimes. In regime 1, subjected to an external DC magnetic field + H 0 , it operates as a two-way divider, with isolation of the input from the two outputs, and, by inverting the sign of the DC magnetic field, as an optical switch. In regime 2, with the application of a DC magnetic field -Ho, it operates as a waveguide bending element, with isolation of input from output, and, by inverting the sign of the DC magnetic field, as an optical switch. In regime 3, subjected to the application of an external DC magnetic field + H 1 , the device operates as a three-way divider.