LIGHT BRANCHING/INSERTING APPARATUS AND LIGHT BRANCHING APPARATUS

PROBLEM TO BE SOLVED: To provide a light branching/inserting apparatus for branching/inserting/transmitting an optical signal of a WDM system using four-light wave mixture, and a light branching apparatus for branching the optical signal. SOLUTION: In a light branching apparatus 1 according to the p...

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Bibliographic Details
Main Authors INAGAKI SHINYA, TAKEDA KEIKO, MORIYA KAORU
Format Patent
LanguageEnglish
Published 30.11.2006
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
TRANSMISSION
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Summary:PROBLEM TO BE SOLVED: To provide a light branching/inserting apparatus for branching/inserting/transmitting an optical signal of a WDM system using four-light wave mixture, and a light branching apparatus for branching the optical signal. SOLUTION: In a light branching apparatus 1 according to the present invention, a first WDM system optical signal multiplexing optical signals of a plurality of wavelengths is made incident on a generation means 11. The generation means 11 generates a second WDM system optical signal using four-light wave mixture from the first WDM system optical signal and incident exciting light. The first WDM system optical signal and the second WDM system optical signal are made incident on a branching means 12 provided on the post-stage of the generation means 11. The branching means 12 extracts light of a specific wavelength. A control means 13 then controls the wavelength of said exciting light. Such a configuration changes a channel in a WDM system optical signal branched in the branching means 12 by changing the wavelength of the exciting light, thereby branching an arbitrary channel. COPYRIGHT: (C)2007,JPO&INPIT
Bibliography:Application Number: JP20060199838