New CATV fiber-to-the-subscriber architectures

Gary Kim

doi:10.1117/12.24592

1 January 1991 New CATV fiber-to-the-subscriber architectures

Gary Kim

Proceedings Volume 1363, Fiber Optics in the Subscriber Loop; (1991) https://doi.org/10.1117/12.24592
Event: SPIE Microelectronic Interconnect and Integrated Processing Symposium, 1990, San Jose, United States

Abstract

Although the cable television industry has seriously proposed the widespread use of optical fiber technology as the foundation of its networks only since 1988 an important financial watershed already has been reached. Based on stunningly rapid AM technology developments and new research by industry engineers the CATV industry has already reached the point where building new optical trunk is cheaper than building conventional coaxial cable plant. Although as recently as 1988 it might have seemed preposterous to suggest that the financial crossover point between optical media and copper media would soon be reached that indeed has occurred. Using a topology dubbed the " fiber trunk and feeder engineers at American Television Communications the second-largest U. S. CATV operator have demonstrated that it is currently feasible to build new optical fiber trunking networks at costs equal to or less than conventional 450-MHz coaxial cable plant. Installation of the first such network already is underway and it is expected that the significant change in fiber economics will further spur the already-heady pace of fiber introduction in the CATV industry. That in turn will create new types of networks with topologies resembling telephone " star" networks more than conventional " tree-and-branch" systems. The new optically-based networks will be far more reliable more flexible and better adapted to signal switching than conventional CATV networks have been. Although the new networks will be put into place

Citation Download Citation

Gary Kim "New CATV fiber-to-the-subscriber architectures", Proc. SPIE 1363, Fiber Optics in the Subscriber Loop, (1 January 1991); https://doi.org/10.1117/12.24592

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KEYWORDS

Fiber optics

Optical fibers

Televisions

Fiber amplifiers

Optical amplifiers

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Analog electronics

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