pFiber For Next Generation Metro and Access Network in 5G Era Wang Changhua Commercial Technology Corning Optical Communication China September, 2020 Information Security This presentation contains Corning Restricted information and is intended solely for those with a need to know. It may not be distributed, in whole or part, in any form by any means, or by any person or organization without authorization from Corning Incorporated. 3Corning Restricted Pressure From Network In 5G Era Cable/Fiber Construction Challenge Corning SMF-28e+ BB Fiber for Next Generation Metro/Access Networks Summary Agenda Pressure from Network in 5G Era 5Corning Restricted 0 50 100 150 200 201520162017201820192020E 2021E 2022E 2023E 2024E Global Optical Transmission Network Bandwidth Forecast Sharp increase of data traffic and access points drive the network construction and upgrade 47% CAGR 2013-2019 China FTTx Subscribers (Accumulated) (Million) 0 100 200 300 400 500 2013201420152016201720182019 - 50.0 100.0 150.0 2013201420152016201720182019 China Access data traffic of mobile internet (Billion GB) 100% CAGR 2013-2019 Sharp increase of data traffic and bandwidth Source: Omdia Massive network access points 28% CAGR 20152024 (Million Gbps) - 2,000 4,000 6,000 0 200 400 600 800 1,000 20192020 2021E 2022E 2023E 2024E 2025E 2026E 2027E China 5G Macro Base Station Forecast Source: 2019 IFOC Source: MIIT Source: MIIT 6Corning Restricted Pressure from network in 5G era Various network topological structures Ring/Tree/Start/Mesh Multi-services access points in integrated network Macro/small base station（2G/3G/4G/5G) FTTx Enterprise special line Limited installation space Crowded duct High density of access points increase the construction difficultly High fiber count of cable Aggregation layer 72f/144f/288f Access layer 144f/288f Distribution layer 24f/48f Source: Corning 7Corning Restricted Communication system based on new technologies(10G PON/DWDM) at long wavelength waveband are more likely to be impacted by the macrobend of cable G.652.D光纤在不同波长下因小半径弯曲引起的衰耗光纤在不同波长下因小半径弯曲引起的衰耗 10G PON are widely used in China From 2019/04 MIIT asked 3 carriers to support 1Gbps broadband service based on 10G PON technology in more than 300 cities In 2020, 10G PON accounted for more than 60% of the total PON shipment. DWDM in metro and access network Driven by the sharp increase of data traffic, DWDM/OTN solution sank down to aggregation layer network and even access layer network China Unicom has been leading the development of DWDM (G.metro) technology in 5G front-haul Cable/Fiber Construction Challenge 9Corning Restricted Cable/fiber construction challenges Support High Density Agility Smaller drum yard Lower rental costs Lower cost installation equipment showing bend sensitivity SMF-28e+ BB fiber Resilience under bending Traditional G.652.D SMF-28e+ BB fiber WDM-PON DWDM PON monitoring NG-PON2NG-PON2 10 GPON10 GPON GPONGPON Source: Corning* Curves in the graph represent 1km fiber-cable attenuation and 10 x30mm diameter bends 19Corning Restricted Better Bendable SMF-28e+ BB fiber improves system margin and reliability Splitter Central office Aerial deployment Customer premises 10km GPON span Loose turns Source: Corning estimates CableConnectorsSplicesSplitterBends 30 27. 5 25 22. 5 20 17. 5 15 Typical G.652.D (dB)SMF-28e+ BB fiber (dB) Link Loss (dB) 28 dB Power Budget Zero Margin Remains 4 dB margin for repair & maintenance Macrobend Loss (dB) 1550nm G.652.D SMF-28e+ BB fiber Maximum 100 Loose Turns 16mm radius 5.0 dB1.0 dB Source: Corning 20Corning Restricted Better Bendable SMF-28e+ BB fiber improves ribbon cabling efficiency and lower attenuations When using SMF-28e+ BB fiber, no need to select fiber with better bending performance for ribbon edge fibers. It will improve the cabling efficiency, and reduce the risk of high attenuation caused by bend and stress. Especially for high fiber count ribbon, i.e. 576F and above, the improvements of efficient is significant. It also can improve the attenuation, lowering the average attenuation. Edge fibers are more easily stressed and bent, which may lead to high attenuation. SMF-28e+ BB fiber improves ribbon cabling efficiency GYDTA/S-288F 21Corning Restricted Extra Compatible The compatibility challenge Macrobend Improved G.657 fiberConventional or low-loss G.652 fiber MFD: 8.6 m 9.2 m MFD MFD Mismatch G.657 fiber tends to be designed with smaller MFD and may feature a lower refractive index “trench region around the core which can cause difficulties during the installation when connected to existing G.652.D fibers. Mode field diameter mismatch 22Corning Restricted Extra Compatible Dissimilar fiber designs can hinder splice quality testing MFD 9.2 m G.652 MFD 8.6 m G.657 OTDRs use back-scattered light to assess link transmission loss Backscatter light level is inversely proportional to MFD size Distance (km) Intensity (dB) At the transition point from a G.657 fiber to a G.652 the difference in backscatte/p