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Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Copyright 1996 Bellcore,All Rights Reserved,Whats Happening in Fiber-to-the-Home?,Paul W. Shumate,Executive Director - Broadband Local Access & Premises Networks,(201) 829-4600,CLEO97, May 21, 1997,Why Fiber-to-the-Home?,All the usual physical benefits of fiber,A future-proof network,(e.g.,upgrades),No EMC issues,No outside-plant actives,;,highest reliability,No electrical powering,Immune to lightning, other transients,Lowest powering costs,Lowest operations costs,Maintenance, provisioning, and facilities planning,Why Not FTTH?,Issues of the Late 1980s - Have Things Changed?,Too expensive,Incompatible with analog TVs,Bit rates for digital video too high,Any demand for other digital services?,Lifeline powering,No product standardization,Key Changes,System cost down by 3X to 4X,PONs,Loop lasers $,/,10,Fiber and other components (e.g., VLSI),Digital video $,/,10,Cost savings large,Established demand for digital services,Regulatory and competitive environment,International “standards” on fast track,Recent News on FTTH,“By 2000, fiber all the way to the home will be used to replace local loop routinely.”,D. Dorman, CEO Pacific Bell, January 1997.,“FTTH is already cost-competitive with many newbuild HFC scenarios. It is likely that FTTH will be cost-competitive with the average, as well as the high-end versions, of HFC sometime next year.”,E. Langenberg, Consultant, May 1997.,Home,Home,Home,Home,Home,FTTH (1988),FTTC (1992),PON FTTH (1996),Reducing Costs thru Resource Sharing,Home,Home,Home,Home,1:N,Active,1:N,Passive,Milestones in “Loop Lasers”,1986,Simple, stable, coaxial laser packages,780-nm packages derived from CD technology,Late 80s,DIL packages,Silicon optical bench, passive alignment,Various coupling techniques (e.g., up-tapers),1994,SL-MQW 1300-nm lasers,Spot-size transformers,1995,All-plastic packages,All-passive alignment,1996,“Standard” DIL package,Loop Lasers,Inexpensive Devices Operate from -40 to +85C,SL - MQW laser diodes require:,No prebias,No feedback control,No TE cooler,Reliability 100 kh 85,o,C,Large MFD couples efficiently and stably to SMF,All-passive alignment,All-plastic package,Installed First-Cost,Loop Length (1000 ft),10,20,30,40,50,0,FTTH,FTTC,$ (FTTH) and $ (FTTC) vs. Distance,FTTH costs,more,FTTH costs,less,For Surburban Installations, Why Not,Stop With FTTC?,Gen-2 FTTC currently provides up to 52 Mbit/s, and,Gen-3 FTTC could reach 155 Mbit/s.,FTTH can provide significant,additional,savings thru,advanced testing, maintenance, and provisioning,procedures, simplest and most-flexible planning of,facilities and upgrades, and lowest electrical-powering,expenses.,Suburban FTTH,Operations Savings Offset Todays Higher First-Cost,Equipment + Install,Maintenence, excl. drop,Drop maintenance,Provisioning,Electrical powering,Life-Cycle Savings FTTH vs. FTTC*,$220 $460,*20-year life-cycle savings, $180, $200, $ 25, $200,* Installed first-cost suburban modeling based on 100k quantity; IFCs are per-residence,First-Cost Premium FTTH vs. FTTC*,Present FTTH Installations,FSAN Initiative (Also. “Gx”),BT (England),BellSouth (USA),CNET (France),CSELT (Italy),DT (Germany),GTE (USA),NTT (Japan),Swiss Telecom,Telefonica (Spain),Telstra (Australia),Alcatel,Ascom,BBT,Bosch Telecom,Ericsson,Fujitsu,H-P,Italtel,Lucent,NEC,Nortel,Siemens,SAT,Operators,Suppliers,Key Full-Service Access Network Specs,FSAN Conference, March 5, 1997 (Atlanta, Ga.),Compatible with all current and future services.,FTTx architectures:,FTTCabinet: 155/155 or 622/155 Mbit/s,FTTCurb: same,FTTBuilding: same,FTTH: 155/155 or 155/26 Mbit/s,1:16 or 1:32 ATM PON,.,VDSL,for last connection to customer, except FTTH.,TMN-compliant operations support system.,Summary,FTTH becoming very attractive,All-fiber plant,Future-proof bandwidth potential,Low powering and operations costs,Cost parity now in rural areas, suburban closing fast,International spec emerging,FTTH technologies on fast tracks,
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