ISOLATEUR OPTIQUE UTILISE DANS LES COMMUNICATIONS OPTIQUES ET LA PHOTOMETRIE

ISOLATEUR OPTIQUE UTILISE DANS LES COMMUNICATIONS OPTIQUES ET LA PHOTOMETRIE

An optical isolator according to the invention comprises a first birefringent element for separating an incident light beam into two light beams that are vertical to each other in the polarization direction and are not parallel with each other in the propagation direction, a 45 DEG Faraday rotator,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: HOSOKAWA TADATOSHI
Format: Patent
Sprache:fre
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:An optical isolator according to the invention comprises a first birefringent element for separating an incident light beam into two light beams that are vertical to each other in the polarization direction and are not parallel with each other in the propagation direction, a 45 DEG Faraday rotator, a second birefringent element that is identical with the first birefringent element in terms of the light beam-separation angle but is different by 45 DEG from the first polarizer in terms of the angle the separated two light beams make to the polarization of the beams, and at least one birefringent crystal plane plate that has a function capable of converging two parallel light beams, with the planes of polarization at right angles with each other, into a single beam.