AM fiber-optic local loop distribution in Cologne, West Germany

An AM fiber-optic distribution system developed for the Deutsche Bundespost of the Federal Republic of Germany is described. This is the first deployed video system utilizing Raynet noninvasive coupler technology supplying PAL format video and FM audio in the subscriber loop. The optical transport consists of connectors, single-mode optical fibers, splices, and noninvasive optical couplers providing a bus architecture for the transportation of intensity modulated (IM) AM video. Subscriber interface units (SIUs) are connected to the bus either via noninvasive couplers or directly at the end of a fiber.<
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