DRIVING FIBER DEEPER IN THE LOOP: ENABLING THE ECONOMICAL FUTURE - PROOF FULL SERVICE ACCESS NETWORK BY PHOTONIC LAYER MULTIPLEXING

摘要

Since optical fiber was made practical for communications two decades ago,telephone, television and data communications providers have been exploring ways ofusing its promise to deliver these and future services directly to the home. The sustainedexplosion of computer communications in the 1990s has accelerated the urgent need for a“wide-open-pipe” access platform able to keep up with this explosion’s ever-growingbandwidth and connectivity requirements.The new build broadband access platforms being considered and deployed by theseproviders- the all digital Fiber To The Node/ Fiber To The Curb platforms with XDSLmodems and the RF modulated Hybrid Fiber Coax platforms with Cable Modems areoptimized for one of the services- FTTN/FTTC for telephony and HFC for video, but notfor the other service nor for the increasingly important computer communications service.By capitalizing on the infinite bandwith and transparency of optical fiber weeliminate the constraints imposed by long copper drops (coax and twisted pair cables) andsignal/protocol conversions’ costly requirements. This integrated fiber to the curb networkthus optimizes the delivery of both television and telephony services while and becomes afuture-proof computer communication services platform.