Green Transport Network and Core Components 2010. 6. 8. Taewhan Yoo Optical Internet Research Department GP Korea 2010

Agenda Introduction ETRI R&D Activities Summary Network Issues ETRI R&D Direction ETRI R&D Activities Packet Optic Integrated Network High-speed Transmission All-Optical Access Summary

Network Issues Traffic Increase Energy Consumption Network Utility Telepresence eleworking 3D, UHD Smart Work Router ~1MW Power Consumption Per 10Tb/s IP Router 100 Tb/s ~ 1Pb/s Network Traffic by year 2020 Network Utility IP Network Problem Optical Network < 10Tb/s Future Internet ROADM 현재 인터넷 Network Security, Address and Naming Problem, QoS Limitation, Too Many Patch Solutions etc. Currently 1Tb/s per Fiber, Capacity of Optical Switch < 10Tb/s

(Cloud Computing Network) Paradigm Shift Evolution New Directions Business UBcN Target Network → Service (Cloud Computing Network) Cisco, IBM, Google, Microsoft, Amazon R&D - IP converged network - wireless/wireline convergence ~Year 2015 Green Network Future Internet

Multilayered Network (Present) Packet-Optic Integrated Network (2012) ETRI R&D Direction Best Utilization of Current Network Technical Innovation Multilayered Network (Present) Packet-Optic Integrated Network (2012) Optic Utility Network (2020) OTN ROADM Multilayer integrated Management End-to-end Pcket IP Cross Layer Control Packet Optic Integrated Switch OTN Optic Packet/Path Switch End-to-end Pcket Post IP Service Resource Network Virtualization Manager IP Ethernet SDH ROADM ~1 Tb/s Traffic (IP-Quadruple Play Service, B2C), Connectionless packet Independent operation of each transport layer Global connectivity only over IP network 1~10 Tb/s Traffic (telecowrking, Smart Work Service, B2B) Connection-oriented Packet Automatic operation of multilayer network (No click provisioning, high-reliability) Open Transport Network - >100 Tb/s Traffic (Full Virtual Work/Life Environment, N2U) Optical Packet/Path Switch End-to-end O-O-O networking Service-resource-aware Network Control /Management Optical network utility service:Virtualization,Dynamic Green Network -5-

Introduction ETRI R&D Activities Summary Network Issues ETRI R&D Direction ETRI R&D Activities Packet Optic Integrated Network High-speed Transmission All-Optical Access Summary

Packet-Optic Integrated Transport Network POINTS 다계층통합제어서버 (MONCP) IP IP IP Switch Ethernet Ethernet Data Plane PBB-TE MPLS-TP TDM channel OTN channel λ-path Ethernet Switch OTH OTH OTH Switch Management Interface WDM WDM λ-Switch 패킷광 통합스위치 (POINTS) 100Gb/s per λchannel GMPLS (control plane protocol) Multi-layer Integrated Switch End-to-end circuit-like packet transport OAM and protection on multilayer network Automatic Path Discovery and Configuration Self-functions with GMPLS control plane Low CAPEX, OPEX Dynamic Bandwidth on Demand High Performance Packet Transport High reliable

Packet-Optic Integrated Network Multilayer Control & Management Path Management Server Path Computation Element Function DWDM Packet-Optics Integrated Switch GMPLS control plane

Introduction ETRI R&D Activities Summary Network Issues ETRI R&D Direction ETRI R&D Activities Packet Optic Integrated Network High-speed Transmission All-Optical Access Summary

R&D on High-speed Transmission Higher Speed Ethernet & Transport Network DWDM P-OTS CESR Network 망 적용 100GE MAC 100G TX/RX Mod./Demod. 100G Framer FEC PHY 100GE Transceiver 100G 광트랜스폰더 100G OTN Transceiver 시스템 적용 System Product 기술 이전 40GE/100GE Transceiver 40G/100G Transponder 40G/100G OTN Transceiver 4x10G/4x25G TOSA/ROSA Transceiver 40G/100G Mapper/Framer/FEC 40G DPSK 100G DC-DQPSK MAC/PHY MAC/PHY IPR확보 표준기술 핵심 원천 기술

ETRI Product Roadmap for High-speed OTRx 100G LH Transceiver & 100GBASE-LR4 CFP & 100G Transponder 100G 100G OTU4 Framer & G.709 FEC & EFEC IP Core Single channel 300pin C-band tunable 300pin 40GBASE-LR4 X2 40G 40G Transponder v3.0( 40GE) & 40G OTU3 Framer IP Core v3.0 40G STM-256 Transponder 40G STM-256 Framer IP Core 40G OTU3 Transponder v2.0 (STM-256) 40G OTU3 Framer IP Core v2.0 40G G.709 FEC & 40G EFEC IP Core Single channel 300pin 8ch tunable 300pin C-band tunable 300pin 10km XFP 40km XFP DWDM 80km XFP DWDM 80km SFP+ 10G 10G OTU2 Framer IP Core 10G G.709 FEC & EFEC IP Core 2004 2005 2006 2007 2008 2009 2010 2011

4 ch. CWDM OTRX for 40G/100G Ethernet Optical power diagram of 40GBASE-LR4 LD (0) LD (1) LD (2) LD (3) CWDM MUX PD (0) PD (1) PD (2) PD (3) CWDM DMUX 1271 nm 1291 nm 1311 nm 1331 nm Average receive power: 2.3 ~ -13.7 dBm (each lane) 2 m ~ 10 km Channel insertion loss: 6.7 dB MUX loss: 2.5 dB DMUX loss: 2.5 dB Average transmitter power: 2.3 ~ -7 dBm (each lane) (1264.5 ~ 1277.5 nm) (1284.5 ~ 1297.5 nm) (1304.5 ~ 1317.5 nm) (1324.5 ~ 1337.5 nm) Optical power diagram of 100GBASE-LR4, ER4 Channel insertion loss: - 6.3 dB (2 m ~ 10 km) - 18 dB (2 m ~ 40 km) Speed: 25.78125 Gb/s MUX loss: 2.5 dB (min.) DMUX loss: 2.5 dB (min.) 1295.56 nm 1300.05 nm 1304.58 nm 1309.14 nm (1294.53 ~ 1296.59 nm) LD (0) PD (0) LD (1) PD (1) (1299.02 ~ 1301.09 nm) LAN-WDM MUX LAN-WDM DMUX LD (2) PD (2) (1303.54 ~ 1305.63 nm) LD (3) PD (3) (1308.09 ~ 1310.19 nm) Average transmitter power: - LR4: 4.5 ~ -4.3 dBm (each lane) - ER4: 2.9 ~ -2.9 dBm (each lane) Average receive power: - LR4: 4.5 ~ -10.6 dBm (each lane) - ER4: 4.5 ~ -20.9 dBm (each lane)

4 Ch. CWDM TOSA/ROSA Module 4 x 10G CWDM ROSA Features - Center wavelength: 1271, 1291, 1311, 1331 nm - Flatness (@ 0.1 dB): > 15 nm - Sensitivity (@ BER=10-12, ER=6dB): > -17 dBm - IEEE802.3ba standards compliant - Optical DMUX + PIN-PD + TIA - Operates from 9.95 to 11.3 Gb/s rates - Single 3.3V power supply - Dimension: 25.6 x 13 x 8.5 mm3 Features 4 x 10G CWDM TOSA - Center wavelength: 1271, 1291, 1311, 1331 nm - Wavelength range: ±6.5 nm @ center wavelength - Output power, each channel: > +2 dBm - Extinction ratio: > 3.5 dB - SMSR: > 30 dB - IEEE802.3ba standards compliant - DFB-LD + Optical MUX - Operates from 9.95 to 11.3 Gb/s rates - Dimension: 31.6 x 17 x 8.5 mm3

300pin MSA 40Gb/s OTRx Features Block Diagram NRZ-OOK NRZ-DPSK 40 Gb/s optical transmitter/receiver with 16 parallel OIF-SFI5-01.0 compliant SER/DES I/O timing and deskew function Built-in jitter clean-up circuit for reference clock input 300 pin multi-source agreement (MSA) compatible I2C standard interface Multi-rate from 39.8 to 43.6 Gb/s Optical combination of transmitter and receiver: - C-band full tunable channels transceiver, NRZ-OOK: C-band full tunable laser with ITU-T grid 50 GHz spacing, LiNbO3 external modulator, and PIN PD - C-band full tunable channels transceiver, NRZ-DPSK: C-band full tunable laser with ITU-T grid 50 GHz spacing, LiNbO3 external modulator, Delay-interferometer and balanced PIN PD Block Diagram NRZ-OOK NRZ-DPSK Serializer (16:1 MUX) Optical Modulator (E/O) Optical Signal Serializer (16:1 MUX, Precoder) Optical Modulator (E/O) Optical Signal 300 pin Connector Micro-processor (Control) Laser (Optical Source) 300 pin Connector Micro-processor (Control) Laser (Optical Source) Optical Signal Optical Signal De-serializer (1:16 DeMUX) Optical Receiver (O/E) De-serializer (1:16 DeMUX) Optical Receiver (O/E) Optical Delay Interferometer

100Gb/s Modulation Format Electrical Signal Processing Optical Signal Processing 100Gbps 2 L N L-Lamda 2-polarization N-phase M-level X-polarization Optical Phase Optical Intensity Signal process Lamda 1 Y-polarization Optical Phase 100Gb/s Transceiver M-ary QAM N Phase Shift Key NM circular polarization OFDM Lamda N Coherent Detection 100Gb/s Transceiver Direct Detection

OTN OTRx Modulation Format Option 10G NRZ OOK RZ-DPSK RZ-DQPSK (RZ-) 3ASK-DPSK (RZ-) DP-DQPSK DC-DQPSK DP-QPSK OFDM Application Ref. Core/ Metro Core Detection method Direct Coherent Symbol rate 11GBd 112GBd 56GBd 44GBd 28GBd WDM grid (GHz) 50 200 100 OSNR(dB) (BER 1e-3) 12 17 18 23 19 16 GVD (ps/nm) ~1600 10 25 <40 >>500 PMD (ps) 1.5 2.5 3 5 >>10

ETRI Solution for 100Gb/s OTRx Dual Carrier-Differential Quadrature Phase Shift Keying dual carrier generator DQPSK modulator #1 DQPSK modulator #2 signal combiner carrier splitter signal splitter interferometer #1 interferometer #2 BPD RF amplifier It#1 Qt#1 It#2 Qt#2 Ir#1 Qr#1 Ir#2 Qr#2 Serializer De-Serializer n 4 Input data output data optical output optical input <transmitter> <receiver> No ADC, No DSP, No polarization control

ETRI Product Roadmap for OTN Framer/FEC 100G Transponder v1.0 w/CFP & MSA-100GLH 100G 100G OTU4 Framer IP Core - Clients : 100GE - Line : OTU4 100G G.709 FEC IP Core 100G EFEC IP Core - Clients : 100GE - Line : OTU4 - Clients : 100GE - Line : OTU4 40G STM-256 Transponder (STM-256,) 40G OTU3 Transponder (STM-256,) 40G Muxponder 40G Transponder v3.0 (40GE) - Clients : 4xSTM-16 - Line : OTU3 Clients : STM-256 Line : STM-256 Clients : STM-256 Line : OTU3 - Clients : 40GE - Line : OTU3 40G 40G OTU3 Framer IP Core v1.0 STM-256 Framer IP Core 40G OTU3 Framer IP Core v2.0 40G OTU3 Framer IP Core v3.0 40G G.709 FEC IP Core 40G EFEC IP Core 10G Line card for OTN-MSPP (4xODU1) 10G 10G SFI-4.1 IP Core 10G OTU2 Framer IP Core 10G G.709 FEC IP Core 10G EFEC IP Core 2004 2005 2006 2007 2008 2009 2010 2011

Introduction ETRI R&D Activities Summary Network Issues ETRI R&D Direction ETRI R&D Activities Packet Optic Integrated Network High-speed Transmission All-Optical Access Summary

All-Optic Open Access Network 1.25Gb/s, 2/5Gb/s, 10Gb/s x 128 channel DWDM-PON, 40~60 km 1.25Gb/s, 2/5Gb/s, 10Gb/s TDMA-PON (EPON, GPON), 20km Open Access 1Mb/s ADSL (5km) 기업 50Mb/s VDSL (500meters) Multiple Service Providera 4G. WLAN 데이터센터 WDM-PON SP A Lone-reach Access Copper cable coverage (25%) Copper Cable coverage (78%) SP B user premise SP C u-City 일반가입자 Long-reach access network: up to 10Gb/s WDM/TDMA hybrid PON Wireline and wireless unified access network infra Green access network: sharing of access network infra

1st Generation WDM-PON Downstream Upstream Development Status Injection Seeding Remodulation remodulated RSOA Innovator: ETRI Commercialization - G-photon(OTRx, ETRI Venture) - Corecess(system) - GW-PON., WDM/TDM hybrid PON (Gwangju FTTH service) Optical Semiconductor Downstream Eraser Upstream Optical Semiconductor Spectrum sliced light source(CW) Injection Seeding FP-LD injection locking Innovator: KAIST/LG-Nortel Commercialization - LG-Nortel(system/OTRx) - 100M/l WDM-PON(local) - 1G/l WDM-PON(Yongin) - Norway, Netherland, U.S.A.(‘09.) Spectrum sliced light source(CW) Optical Semiconductor Modulated optical signal Upstream

Colorless Optical Transceiver for 1st Generation WDM-PON ONU Transmitter optical/electrical specifications (-20°C <Tcase<70°C, Vcc=3.3V) Parameter Symbol Min. Typ. Max. Unit Optical output power Pout -3 - dBm Power variation DPAVE ±0.5 dB Channel spacing 100 GHz Side mode suppression ratio SMSR 25 Bit rate 1.25 Gb/s Optical extinction ratio ER 6 Optical rise/fall time tr/tf 260 ps Total transmitter jitter (p-p) JTXpp 0.5 UI Receiver Specifications Receiver optical/electrical specifications (-20°C <Tcase<70°C, Vcc=3.3V) Parameter Symbol Min. Typ. Max. Unit Operating wavelength 1450 - 1620 nm Rx sensitivity Psens -28 dBm Rx overload Pover -3

2nd Generation WDM-PON Tunable Laser Transceiver Transmission BTB 40km

Deployment of 1st Generation WDM Local Deployment Case Hybrid PON service(‘09.03~) Gwangju Metro: 300 users 1.25G x 16 λ/EPON 100M/l, Residential Service (’05.~’08.) 150,000 users(nationwide) GW-PON service(‘08.04~) Gwangju Metro: 384users 1.25G x 16 λ (remod-RSOA) GW-PON service(’07.,’09.) Gyungki Province: 600 users 1.25G x 16 λ (injection FP-LD) KT 신갈 국사 내 OLT RN

Summary Building a safe, broadband, low-power consumption network is an urgent problem to be solved as ICT plays a key role to overcome several current issues of the global society GMPLS based Packet-Optic Integrated Transport Network as a solution for the mid-term network issues: network automation, dynamic service and global connectivity of each network transport layer, safty and reliability through network isolation close to physical layer, better quality applicable to the control service apllication through network, low OPEX and CAPEX through integration Optical path switched network should be pursued as a solution for 100Tb/s and low-enery consumption network: more advanced ROADM, new optical path switched network protocol ETRI is interested in technology transfer and collaboration on core components including all sort of OTRx and OTN framer/FEC for 40Gb/s and 100Gb/s, OTRx for WDM-PON access network etc.