OPTICAL FIBER COMMUNICATION SYSTEM USING WAVELENGTH CONVERTER FOR BROAD-BAND TRANSMISSION

PROBLEM TO BE SOLVED: To provide an optical fiber communication system, using a wavelength converter for a broad-band transmission. SOLUTION: A transmitter 11 outputs signals, including channels λ'1,..., λ'N in a wavelength band outside the bandwidth of an intermediate optical element bein...

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Bibliographische Detailangaben
Hauptverfasser:	RANKA JINENDRA KUMAR, STENTZ ANDREW J
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:	PROBLEM TO BE SOLVED: To provide an optical fiber communication system, using a wavelength converter for a broad-band transmission. SOLUTION: A transmitter 11 outputs signals, including channels λ'1,..., λ'N in a wavelength band outside the bandwidth of an intermediate optical element being a light amplifier 13. These signals are converted into corresponding wavelengths λ1,..., λN by the wavelength converter 21 through a transmission fiber 12. Next, the signals are mapped into the original channels λ'1,..., λ'N by a 2nd wavelength converter 22. The wavelength converters can be based on four-wave mixing(FWM), also uses a secondary nonlinear material, for instance, lithium niobate and can periodically poll it or can use a semiconductor light amplifier.