LOCNET-an experimental communications system using optical routing
IEEE Journal on Selected Areas in Communications1988Vol. 6(7), pp. 1241–1247
Abstract
Experiences gained with the installation and operation of an experimental communication system are reported. The system uses distributed switching in its narrow-band part, integrating ISDN services and high-speed data communication, and a star coupler as a central device. LiNbO/sub 3/ optical switches behind the star coupler prevent line tapping. In the wideband subsystem, optical routing is used for videophone. The central device is a space-division-switching unit consisting of cascaded 4*4 LiNbO/sub 3/ switching matrices. Both the narrowband and wideband parts of the system have been operated with bit error rates less than 10/sup -9/.>
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