Title :
Role of fiber optics in HDTV
Author :
Hamilton-Piercy, N.
Author_Institution :
Rodgers Cablesys., Toronto, Ont., Canada
Abstract :
An evolutionary upgrade of cable television by the introduction of fiber-optic cable and components is discussed. Relatively-long-distance transmission over fiber allows the establishment of many small neighborhood coaxial distribution networks of very high quality and capacity, all served from one hub. Technology available today allows 100000 urban households to be served from a single signal source (primary hub). Intermediate secondary hubs allow individual sections of the community to receive unique programming with subsequent transport on fiber to the 200-home neighborhood. Each neighborhood shares a fiber-optic node, delivering the equivalent of 75 HDTV channels with 50-dB carrier-to-noise ratio and all distortion products suppressed 60 dB or more below the carrier. Analog transmission is assumed to support this number node to the viewer´s receiver. Signal formats suitable for direct reception to the home by conventional heterodyne receiver technology is generated at the primary hub, and no further processing is required.<>
Keywords :
cable television; high definition television; optical cables; optical links; subscriber loops; 200-home neighborhood; HDTV; analog transmission; cable television; carrier-to-noise ratio; direct reception; distortion products; fiber optics; fiber-optic cable; fiber-optic node; heterodyne receiver technology; intermediate secondary hubs; primary hub; signal formats; single signal source; small neighborhood coaxial distribution networks; urban households; HDTV; Optical fibers;
Conference_Titel :
Broadband Analog Optoelectronics: Devices and Systems, 1990. Conference Digest., LEOS Summer Topical on
Conference_Location :
Monterey, CA, USA
DOI :
10.1109/BAODS.1990.205507
