Optical circulator

An optical circulator has optical elements structured to control return loss for light propagating from an input port to an output port. In some embodiments, the optical circulator has a port configuration that aligns a first optical port along the central axis of a first lens, aligns a second optic...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ABE SATORU, KONISHI MIEKO, MATSUURA HIROSHI
Format:	Patent
Sprache:	eng
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 circulator has optical elements structured to control return loss for light propagating from an input port to an output port. In some embodiments, the optical circulator has a port configuration that aligns a first optical port along the central axis of a first lens, aligns a second optical port along the central axis of a second lens and positions a third optical port adjacent to the first optical port. A light adjusting optical element may be included to adjust the direction of light emanating from the first optical port and the direction of light propagating to the third optical port to be parallel to each other.