OPTICAL CIRCUIT

PROBLEM TO BE SOLVED: To provide an optical circuit capable of regulating the power of optical channels at need by decreasing inter-channel crosstalks. SOLUTION: Optical switches (gates) 3 to 6 of one input one output capable of varying transmittance are disposed between the switches 1, 2 (first sta...

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Bibliographische Detailangaben
1. Verfasser:	NAKABAYASHI YUKINOBU
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 LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an optical circuit capable of regulating the power of optical channels at need by decreasing inter-channel crosstalks. SOLUTION: Optical switches (gates) 3 to 6 of one input one output capable of varying transmittance are disposed between the switches 1, 2 (first stage) and switches 7, 8 (third stage) of matrix optical switches composed of a tree structure network. As a result, the transmittance of the gates may be varied, by which the inter-channel crosstalks may be decreased and the regulation of the power of the optical channels is made possible at need.