OPTICAL AMPLIFIER GAIN CONTROLLING APPARATUS AND METHOD

PROBLEM TO BE SOLVED: To automatically and dynamically control the gain deviation between wavelengths of an optical wavelength-multiple signal against the time variation by adaptively controlling the attenuations of lower-order diffracted lights at wavelengths to combine them, using an optical divid...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TADA YASUHIKO, KOBAYASHI YUKIO, HIRAYAMA NOBUHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS 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 DEVICES USING STIMULATED EMISSION ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY 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 TRANSMISSION
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