Wavelength division multiplex optical regeneration system and wavelength division multiplex optical regeneration method

An optical regeneration system for regenerating a degenerated signal light, comprising a regeneration device having at least one of a soliton converter, a pulse roller, a Kerr-shutter and a soliton purifier. The solilton converter uses an anomalous-dispersion fiber (ADF) having a fiber length up to...

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Bibliographische Detailangaben
Hauptverfasser:	INOUE TAKASHI, TAKASAKA SHIGEHIRO, HIROISHI JIRO, NAMIKI SHU, TOBIOKA HIDEAKI, IGARASHI KOJI, MATSUSHITA SHUNICHI
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 MULTIPLEX COMMUNICATION NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TRANSMISSION
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Beschreibung
Zusammenfassung:	An optical regeneration system for regenerating a degenerated signal light, comprising a regeneration device having at least one of a soliton converter, a pulse roller, a Kerr-shutter and a soliton purifier. The solilton converter uses an anomalous-dispersion fiber (ADF) having a fiber length up to three times the soliton frequency, and the pulse roller is provided with a pulse roller fiber having high non-linear characteristics. The Kerr-shutter comprises an optical LO (local oscillation) generator for generating an optical LO on an OPLL (optical phase locked loop), a phase comparator for detecting the phase difference between an externally-input signal light and an optical LO, and a control unit for regulating the repeated frequency of an optical LO based on the phase difference. The soliton purifier has a soliton fiber disposed between two optical fibers.