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국빈 최
5 years ago
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1 Optics: FTTH & What s Next? Market Watch FTTH 및광통신의동향

2 Access to Broadband Network & New Life

3 Contents Broadband Internet Business in Korea Broadband Internet Changing Life Style Fiber as the Next Generation Enabler Bringing Fiber to Customers

4 Broadband Internet Business Broadband take-up over first 10 years is faster than previous services across the OECD countries. (ref:

5 Broadband Internet Business in Korea 30,000 25,000 (unit: thousands) 22,230 24,380 25,650 26,270 28, % 80.0% 20,000 15,000 10,000 5,000 3, % 9,430 19,040 16, % 38.5% 22.4% 3,870 2, % 6, % 58.0% 7,806 8, % 10,405 11, % 11, % 40.0% 20.0% % Thrunet Hanaro KT Internet Users Internet Users Population percentage Broadband Internet households ~73% of total households (ref:

6 Broadband Technology & Market Share (Unit: Thousand) 6,000 5,000 4,000 3,000 2,000 1, ,589 (50%) xdsl + Ethernet xdsl + Cable Modem 2,726(24.4%) 2,726 (24%) 1,293(11.6%) Cable Modem 1,293 (12%) 1,571 (14%) etc. xdsl + Ethernet xdsl + Cable Modem Cable Modem (ref: Dec. 2003)

7 Broadband Internet & Change of Life Style Phenomenal increase of broadband Internet usage Weekly hours spent on Internet & TV % of daily Internet users 16.5 h TV Internet 14.1 h h 30.8% 71.9% 6.76 h (ref: isis.nic.or.kr)

8 On-Line Activities Off-line activities being shifted into on-line activities On-line Banking On-line Stock trading e-commerce Public certificates On-line game More than 30% of transactions done through Internet 0.12 Million users in million in 2003 More than 50% of total transactions via on-line 11 Trillion in Trillion in 2003 (Korean Won) 17% of total commerce transactions 58 Trillion in Trillion in 2003 (Korean Won) 7.7 million public certificate users (2003.4) Market size 2.5 times the size of console game market Evolving into another type of entertainment area Game league similar to professional basketball league

9 Digital Divide in Korea College graduates Mid-school graduates Education Gap 77% s Generation Gap 80% 10s 50s ~ Income Gap 38% $1,700~ ~ $1, Urban Urban-Rural Internet Usage Gap 22% Rural (ref: isis.nic.or.kr)

10 Two Sides of the Broadband Internet Business Dark Side & Bright Side

11 (%) Current and Future Broadband Applications Survey on current Internet usages information; search shopping; reservation chatting game Internet phone banking education entertainment community news; magazine misc (ref: isis.nic.or.kr, Jul. 2003) Mainly used for best-effort, data-oriented, store-&-forward applications Next generation broadband applications quality-based, interactive/distributive media applications

12 Next Generation Broadband Different business From access service to end-to-end service Both best-effort & QoS service Different network More bandwidth for Internet access for enhanced services (e.g., media service) Controllability for QoS & security

13 Broadband Evolution Target: 100Mbps per household Streaming Video(HD Level, 3 channel) : total 60M Internet :10M Interactive multimedia communication: 4Mbps Misc. Broadband evolution <1M 3M 8M 26M 100M VDSL Ethernet ADSL Ethernet Fiber Copper Based FTTC Copper Based UTP Based FTTP/H Fiber Based UTP Based Bandwidth

14 ADSL Existence of areas with poor quality (distance sensitive) CO Start of FTTC-based access network deployment (ref: KT, 1999)

15 FTTC Purpose: 1 remove areas with poor quality, 2 increase speed Introduction of cell concept in fiber distribution Large building CO CO Non-apartment Residential area (VDSL, Ethernet) Apartment complex (VDSL, Ethernet) <Cellular Mobile> <Building, Apartment complex, Residential area>

16 FTTC: Fiber Distribution Feeder loops around the CO Distribution: branching from the feeder loop Cell size depending on demand density Feeder 1 제5 간선망 (2에서분리 ) 2001-SM-144C(3.13Km) BB-Shelter, BB-Manhole Large capacity 제 1 간선망 1996-SM-144C(4.9Km) Feeder 4 Feeder 5 제2 간선망 (5와분리) 1996-SM-144C(3.57Km) 제 4 간선망 1999-SM-144C(5.13Km) 추가수요발생으로제 2 간선 / 제 5 간선분리 KT Feeder 2 Feeder 3 제 3 간선망 1997-SM-144C(4.62Km) CO distribution BB-Cabinet Mid capacity Doubling the feeder loop capacity CO CO Optic Copper BB-Box Small capacity (pole, wall-mounted)

17 Evolving into FTTH Criteria for technology selection Features Bandwidth: dedicated 100Mbps Protocol & bit rate transparency Graceful Upgradability Security & privacy Cost: CAPEX & OPEX Features Cost Passive optical network technology as an attractive solution TDMA vs. WDMA-PON Feature vs. Cost

18 Considerations for FTTH Deployment Deployment cost Comparable to xdsl deployment cost (< 150%) Adoption of mature optical component technology Outside plant cost Significant portion of the total deployment cost (cabling + labor) Maximum OSP resource re-use New technologies, e.g., micro cable Target cost structure 100% 90% 80% 70% 60% Labor 28% Cable & OSP HW 50% 27% 40% 30% 20% 10% 0% Network Equipment (target Value) 45% (cable cost: 19%)

19 Considerations for FTTH Deployment (cont.) Services that pay off Needs to prove profitability Continuous pursuit of premium-class services needed Regulatory issues TV broadcasting over IP Unbundling issue

Korea Fixed/Wirelss Integration Existing and newly emerging services Network control (QoS, Security, IP

20 Summary Broadband business in Korea calls for new market Next generation broadband: different business & different network Fiber to the Premise/Home as the basic building block The Big Picture: BcN Initiative in Korea Fixed/Wirelss Integration Existing and newly emerging services Network control (QoS, Security, IP Mobility) Multi-Service IP Backbone Communication/ Broadcasting Integration Voice/Data Integration Wireless Access Wireline Access

21 Why FTTH

22 서비스패러다임변화 단순데이터서비스 -> 멀티미디어서비스 Yesterday Today Tomorrow Any-Access Access Rich Contents Browsers Web Pages Wireline P2P,Game HTTP FTP Servers Wireless VoIP

23 서비스패러다임변화 PC 기반서비스 -> TV 및영상단말기반서비스

TPS TPS (Triple Play Services) -> QPS (TPS + wireless)

telephony (voice mail, conferencing) PC-based Services Broadband

Games TV-based Services Live TV and radio TV-on-demand

24 TPS TPS (Triple Play Services) -> QPS (TPS + wireless) Phone-based Services Basic voice telephony Enhanced voice telephony (voice mail, conferencing) PC-based Services Broadband Internet Access Live TV and radio Video-on-demand Music-on-demand Games TV-based Services Live TV and radio TV-on-demand Video-on-demand Education-on-demand Music-on-demand Games T-commerce Personal video recorder

Multiplexing Access WDM : Wavelength Division Multiplexing A-PON : ATM-PON E-PON : Ethernet-PON G-PON

25 FTTH 기술 tree PTP Home Run FTTH 기술 AON TDMA-PON A-PON E-PON PTMP PTP : Point-to-Point PTMP : Point-to-Multi-Point AON : Active Optical Network PON : Passive Optical Network TDMA : Time Division Multiplexing Access WDM : Wavelength Division Multiplexing A-PON : ATM-PON E-PON : Ethernet-PON G-PON : Gigabit-PON CWDM : Coarse WDM DWDM : Dense WDM PON WDM-PON Hybrid-PON G-PON CWDM-PON DWDM-PON (WDM+TDM) -PON

26 FTTH 기술진화로드맵

27 PTP Home Run 2N (or N) fibers 2N Transceivers Too many fiber cores required Too many transceivers CO Optical Fiber

28 AON(Active Optical Network) 2N+2 optical transceivers Field에전력공급옥외구조물운용유지보수비용 PTMP - AON CO 100Base-F 1000Base-LX Ethernet Switch

29 TDMA - PON Downstream bandwidth is shared among all connected ONUs TDMA-PON N+1 optical transceivers Field에전력공급불필요 TDMA 및 Ranging Protocol 필요 ONU의고속화에따른 Transceiver 비용상승 B-PON, E-PON, G-PON 가입자증가시대역폭감소 ONU ONU OLT time ONU 3 CO Optical Splitter Downstream data is broadcast Each receiver distinguishes their data by MAC address ONU

30 TDMA - PON (Ranging 기능 ) Without ranging CO ONU 2 ONU OLT 3 ONU Collision 4 ONU After Ranging CO ONU 2 ONU OLT 3 ONU No Collision Upstream TDMA protocol 4 ONU

31 One lambda for one user N+1 optical transceivers Field에전력공급불필요 TDMA 및 Ranging Protocol 불필요 Wide Bandwidth per User WDM - PON Protocol Transparency 가입자에게 IP, VoD, 방송처리장치필요 CO ONU ONU OLT t Remote Node ONU ONU ONU

32 Hybrid - PON Hybrid-PON Field에전력공급불필요 Large Subscriber number per feeder cable No more Feeder cable CO E-PON OLT W-PON OLT RN (AWG) 3 λ 32 λ

33 FTTH OSP

34 목차 1. Evolution of FTTH in KT 2. R&D OSP New tech 3. OSP Equipments, Devices and Mat ls 4. Future works and Issue

35 From FTTC to FTTH 1 Feeder loops around the CO Distribution: branching from the feeder loop Cell size depending on demand density Feeder 1 제5 간선망 (2에서분리 ) 2001-SM-144C(3.13Km) BB-Shelter, BB-Manhole Large capacity 제 1 간선망 1996-SM-144C(4.9Km) Feeder 4 Feeder 5 제2간선망 (5와분리) 1996-SM-144C(3.57Km) 제 4 간선망 1999-SM-144C(5.13Km) 추가수요발생으로제 2 간선 / 제 5 간선분리 KT Feeder 2 Feeder 3 제 3 간선망 1997-SM-144C(4.62Km) CO distribution BB-Cabinet Mid capacity Doubling the feeder loop capacity CO CO Optic Copper BB-Box Small capacity (pole, wall-mounted)

36 FTTH 2004~6 [ 주요변화 ] 1 Branching 1 Cell of 32 Subscribers - 1x32 Splitter (at RN), 4 Distribution Boxes with 8 Channels each - 1x4 Splitter (at RN), 4 Distribution Boxes with 1x8 Splitter each 30% Cost Reduction (est.) 1 Stage 2 Stage 1X8 8ch 8ch 1X32 8ch 1X4 8ch SM4C 100m 8ch SM4C 100m 8ch 8ch 2co 40m ONT OJC(2m) 8ch 2co 40m

37 FTTH 2004~6 [ 주요변화 ] 1 FTTH Model 의접속구조에현장조립형컨넥터추가적용 - 가입자개통을위한인입케이블컨넥터화에적용 ❶ 32C 광단자함 8 자형 (2C) 광아울렛 OJC ONT 2005 광접속함체 ❷ 32C ❸ ONT ❹ 4C 1:8( 컨넥터미부착형 ) ONT 1:32 or 1:4 컨넥터미부착형 범례 ❺ 4C ONT 융착접속 성단접속 현장조립형컨넥터 ❻ 4C 1:8 컨넥터부착형 8 자형 (2C) ONT 2006

OSP Mat ls [Optical Cables] 3 Loose Tube Type Ribbon Tube Type Drop Cable Slender Cable FRP Strength Memebers 1.Strength member 2.Fibers in ribbon 3.tube 4.

38 OSP Mat ls [Optical Cables] 3 Loose Tube Type Ribbon Tube Type Drop Cable Slender Cable FRP Strength Memebers 1.Strength member 2.Fibers in ribbon 3.tube 4.Buhher tube 5.sheath 6.rip-cords 7.Insulation tape Strength Memebers Tube (OD 3mm) Fibers (1~2 cores) Fibers PBT Loose Tube Warerfroof Yan Aramid Yan Rip Cord MDPE Sheath

39 OSP Mat ls [Optical Terminator] 3 광감쇠기및광종단기 광종단장치내수용 광감쇠기 (Fixed Optical Attenuator) 는광전송로상의광전력을감쇠시키는수동소자이며, 광종단기 (Optical Terminator) 는광전송로의종단으로부터반사되는광전력을상쇄시키는수동소자로서광커넥타의종류별구조를가짐. 광감쇠기 (Matal-ion doped fiber 적용 ) 광종단기 (Matal-ion doped fiber 적용 )

40 OSP Mat ls [Optical Closure] 3 길이 35cm 이하, 64 심이하 ( 가공및지하겸용 ) 길이 20cm 이하, 24 심이하용 ( 가공 )

41 OSP Mat ls [Optical Box] 3 광종단박스 구내소심광케이블접속함 대형건물광분배반 구내광분기함 중, 소형건물광분배반셀프

42 OSP Mat ls [Optical Device] 3 광스플리터접속형 파장분배기접속형 광스플리터커넥터형 파장분배기커넥터형 광스플리터카드형 카드형이장착된구내성단함

43 OSP Mat ls [fusion and.] 3 소형, 저가격, 누구나쉽게사용 ( 방법만알면특별한기술이없더라도접속이가능 ) 할수있는방향으로개발 FTTH 용융착접속기 광섬유절단기 광섬유접속보조공구 단심분리기리본나이저 (Furukawa) 리본나이저 (Sumitomo) 4 심리본분리기 2 심리본분리기 플라스틱스트립퍼스닙툴 ( 리본심선제거 ) 루즈튜브절단기케이블외피절단기 광옥외선지지선분리기 현장조립광커넥타공구 (1) 현장조립광커넥타공구 (2) 현장조립광커넥타공구 (3) 광커넥타페룰클리너광전화기 광섬유심선대조기 (1) 광섬유심선대조기 (2) 광섬유심선대조기 (3) 기계식접속자조립공구 (1) 기계식접속자조립공구 (2)

44 OSP Mat ls [Splicing] 3 Mechanical Splicing Fusion Splicing <SC> Connector Splicing Ferrul Shape: PC, APC Housing and Assembly: Biconic, SC, FC, ST, D4, MU <Ferrul PC type> <Ferrul APC type> <Multi-core Connector> <Spot Connector>

45 Mechanical Splicing 3 제품별개발시기및정렬방식 V-Groove 정렬 (U-Groove) LabSplice (GTE) Fastomeric(GTE) Finger Splice(RXS) CSL(AT&T) LightBridge(NT) Dorran(3M) Fibrlok II (3M) Multi-Fibrlok (3M) Rapid Ribbon Splice(AT&T) GlaSplice(NEG) Capillary 정렬 GlaSplice(NEG) Rod 정렬 Rotary Splice (AT&T) Fibrlok (3M) : 3 Rod 방식 CamSplice (Siecor) : 2 Rod 방식

46 Mechanical Splicing 접속구조 3 Fiber V-groove V-Groove 방식 2-Rod 방식 Fiber Capillary 방식 Micro- Capillary 3-Rod 방식 Rod

47 3M Mechanical Splicing 3 파이버락기계식접속자 접속레버 주요적용모델 소심의광접속 FDF 소심의전용선접속 아울렛접속 접속자지지대 버퍼클램프 VHB 테잎 특징 접속자지지대와접속툴일체형푸쉬버튼으로접속버퍼클램프 3M VHB 테잎 장점 별도의접속툴이필요없슴사용이편리 900um 파이버의고정이용이단자함어디에나부착이가능

48 3M Mechanical Splicing 3 The RECORDsplice system comprises two items Splice Description: RPI-SA100 Toolkit Description: RPI-TK100 Tyco proprietary information; do not copy or distribute

49 현장조립용광커넥터 3 1. 페룰연마법 (Conventional connector field installation) 광커넥타의구성부품들을조립하여광섬유심선에연결하고 페룰단면으로도출된광섬유를절단, 연마하여 광섬유심선을광커넥타화하는방법 Step 1 : 광섬유심선인출작업 Step 2 : 광섬유단면처리 Step 3 : 광커네타조립 (1) 구성부품조립 (2) 본딩작업 (Bonding) (3) 경화 (+ oven ) (4) 페룰단면연마 (+ polish) 소요시간 : 6분15초소요 광학적특성 : 삽입손실 0.5dB 이하, 반사손실 45dB 이상

50 현장조립용광커넥터 3 페룰연마법의작업과정 단면처리된광섬유를페룰내삽입하고, 광커넥타구성품들을조립한다. 페룰내에폭시주입 페룰 커넥타화할광섬유 페룰단면으로도출된광섬유를절단한다. 페룰단면을폴리싱페이퍼로연마한다. ( 4 단계 : 5um, 1um, 0.3um, 소프트페이퍼 )

FTTH 기술발표

FTTH 기술발표 2 3 xdsl /UTP FTTH / 2002 2005 2010 2 Mbps 6 Mbps 100Mbps * 10 Mbps 45Mbps 155Mbps FTTO / FTTD / Digital (DBS) 53Mbps/4km LMDS ADSL : Asymmetric Digital Subscriber Line HDSL : High speed Digital Subscriber