OPTICAL SUBMARINE CABLE BRANCHING DEVICE FOR WAVELENGTH MULTIPLEX COMMUNICATION SYSTEM, AND WAVEFORM MULTIPLEX OPTICAL SUBMARINE CABLE NETWORK USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an optical submarine cable branching device which can branch the optical signals of plural wavelengths, which can constitute a branching path with a pair of optical fibers and which can realize a free optical submarine cable network. ;SOLUTION: The title optical submarine cable branching device for wavelength multiplex communication system is provided with optical circulators 1 to 6, optical band pass filters 7 to 10 and the optical fibers connecting them. Light signals whose wavelengths are λ1 and λ2, which are transmitted from ground 1, are transmitted to ground 3 and ground 2. The light signals whose wavelengths are λ2 and λ3, which are transmitted from ground, are transmitted to ground 1 and ground 3. The light signals whose wavelengths are λ1 and λ3, which are transmitted from ground 3, are transmitted to ground 1 and ground 2.;COPYRIGHT: (C)1997,JPO