Hitachi and Corning demonstrated 'triple play' services over NexCor optical fiber

October 7, 2004 Orlando, FL -- Hitachi Telecom (USA) Inc. and Corning Inc. joined forces to demonstrate triple-play services at the 2004 Fiber-to-the-Home (FTTH) Conference & Expo in Orlando, FL, this week. The demonstration transmitted voice, video, and data services over 20 km of Corning NexCorTM optical fiber and included the Corning FTTP Coupler/Splitter Module for OptiTect Cabinet.

Head-end video equipment in Hitachi's booth supplied the video content for both RF and IP video transmission. Data, IP video, and voice signals were passed from the head-end to the Hitachi AMN1200 OLT (optical line terminal), which transmitted them on a 1490-nm wavelength. The RF video signal was transmitted by a video OLT on a 1550-nm wavelength and combined onto the fiber with the 1490-nm signal using WDM.

Both of these wavelengths were then transmitted over 20 km of a single strand of Corning NexCor optical fiber to the 1x32 splitter module from Corning Cable Systems, and then to Hitachi's AMN1200 SFU ONT and AMN1200 ETU ONT. The SFU separated the 1490-nm and 1550-nm wavelengths and delivered native interfaces for data, RF video, and POTS voice. The ETU delivered IP video and Internet access.

NexCor fiber is a standard singlemode fiber that is fully compatible with Corning's widely deployed SMF-28e fiber and engineered to handle twice the optical launch power of other ITU-T G.652 fibers. This power advantage over other singlemode fibers enables longer distances and/or higher split ratios, which directly translates to cost savings through broader network coverage and simplified network design.