Superchannels A. to the rescue! Scaling optical-fiber capacity
|
|
- Roxanne Melina Phelps
- 5 years ago
- Views:
Transcription
1 Superchannels A to the rescue! S THE NEED for ever- increasing amounts of DWDM transmission capacity shows no sign of waning, the optical transport industry is moving toward a new type of DWDM technology the superchannel. A superchannel is a set of DWDM wavelengths generated from the same optical line card, brought into service in one operational cycle, and whose capacity can be combined into a higher-data-rate aggregate channel. It s the DWDM industry s answer to the question, What comes next after 100 Gbps? Scaling optical-fiber capacity By GEOFF BENNETT Superchannels will save carriers from the dilemma of how to flexibly scale capacity, particularly as requirements exceed 100 Gbps. The capacity and service f lexibility of optical fiber is remarkable, but still governed by strict rules of physics and engineering practicality. Although written in 2006, Emmanuel Desurvire s paper still gives an excellent overview of those limits, while a more recent paper by Adel Saleh and Jane Simmons points out that increases in the spectral efficiency of optical transport systems u ltimately provides the biggest bang for the buck in terms of capacity scaling to meet growing internet demand.1,2 But what neither of these papers covers is that, despite 40% compound growth in demand over the past five years (equivalent to a factor of five increase), service providers are not able to hire an army of extra network engineers. In fact, in most cases headcount will be frozen. So it s clear that the optical transport networks of the future must be capable of turning up much larger amounts of DWDM capacity for a given operational effort without sacrificing optical GEOFF BENNETT is the director of solutions and technology for Infinera. He has more than 20 years experience in the data communications industry, including IP routing with Proteon and Wellfleet, ATM and MPLS with FORE Systems, and optical transmission and switching with Marconi as distinguished engineer in the CTO Office. Reprinted with revisions to format, from the March/April 2012 edition of LIGHTWAVE Copyright 2012 by PennWell Corporation
2 O/S Processing virtualization layer Multi-core CPU reach or total fiber capacity. Today that capacity unit in long-haul networks is 100 Gbps a data rate enabled by a series of advances in optical transmission, namely: High-order phase modulation (typically -multiplexed quadrature phase-shift keying, or PM-QPSK). Coherent detection using a very stable local oscillator laser. Advanced digital signal processing in the receiver to compensate for fiber impairments. High-gain forward error correction (FEC), including soft-decision FEC that can offer more than 11 db of gain for a typical span. Services Let s refer to the combination of these four items as coherent technology, which offers a quantum leap Bandwidth virtualization layer Multi-carrier superchannel in terms of optical performance compared to non-coherent systems. While there will likely be incremental improvements in future coherent technology, these advances alone are unlikely to keep up with bandwidth demands. It s interesting to note that computer manufacturers are facing a similar problem. You may be aware that CPU clock speeds appeared to stop getting faster about five years ago. Yet the famous Moore s law remains valid in that the number of transistors on a chip is still increasing. CPU and GPU (graphics-processing-unit) manufacturers are using FIGURE 1. Virtualized parallel processing in the CPU and GPU world (left) and virtualized multi-carrier superchannel in the DWDM transport world (right). those additional transistors to build multiple cores, rather than running individual cores at faster data rates. But the chips they produce appear as a single unit of processing capacity to the operating system. Likewise, a DWDM superchannel consisting of multiple wavelengths appears as a single unit of operational capacity to the network engineer. This analogy is shown in Figure 1. Implementing superchannels So what s the best way to implement coherent superchannels? Let s assume that a service provider 1 laser 4 modulators 320-Gbaud electronics ~ 11-nm silicon ~10 years C-band 1 Tbps PM-QPSK Option A Option B Option C 2 lasers 8 modulators 160-Gbaud electronics ~16-nm silicon ~7 years needs to turn up a terabit of optical capacity in a single operational cycle. Today that would mean installing ten 100G transponders an approach that actually takes more than 10X the effort of a single transponder because each time a transponder is added it affects the existing wavelengths in the fiber. Since this approach offers no value for operational scaling, we will not consider it further. Instead, Figure 2 shows three engineering options A, B, and C that we will consider. All three 10 lasers 40 modulators 32-Gbaud electronics Photonic ICs ~2 years FIGURE 2. Comparison of spectral efficiency and electroniccomponent performance for single-carrier, dualcarrier superchannel, and 10-carrier superchannel implementations.
3 examples will use PM-QPSK as experiments before this, of course). the modulation technique: So let s take that to the next step Option A is a single-carrier with Option C, a superchannel with (i.e., one wavelength) transponder operating at 1 Tbps. 10 subcarriers, which divides the That s effectively a 100G transponder where the A series of incremental field electronics run 10X faster. trials culminated in 1 Tbit of Unfortunately, electronics superchannel capacity transmitted (particularly the analogto-digital converter and fiber link. over a production DWDM DSP chips) that run at the 320-Gbaud rate required will not be available for another decade, according to electronics performance by 10 certain industry roadmaps. also and 32-Gbaud electronics is Option B is a superchannel implementation consisting of two 10 subcarriers imply 10 optical actually available today. However, 500-Gbps subcarriers, which circuits, and coherent technology are electronically combined in the already requires a rather large transponder card to appear as a number of high-quality and therefore expensive optical components 1-Tbps superchannel. The advantage is that the performance of even for a single optical circuit. the electronics is halved to 160 In fact, a 10-carrier 1-Tbps superchannel line card would involve Gbaud. Unfortunately, we still have to wait about seven years around 600 optical functions in total before chips with this performance for the transmitter and receiver level are available for products circuit quite impractical if built (they may be available for hero using discrete optical chips. Fortunately, DWDM systems based on large-scale (i.e., multicarrier) photonic integrated circuits (PICs) have been commercially available since These PICs predate the more recent move toward coherent technologies, and many skeptics in the DWDM industry had initially expressed their doubts that such an advanced level of optical performance could be delivered in a commercial PIC. During the course of 2010 and 2011, however, a series of incremental field trials was completed culminating in a terabit of superchannel capacity being transmitted over a production DWDM fiber link between San Jose and San Diego on the TeliaSonera International Carrier network last November. The TeliaSonera trial used twin pre-production 500G coherent superchannel line cards, thanks to large-scale PIC technology. Turning up this 1 Tbps of capacity took two operational cycles, one for each 500 Gbps of capacity. This implementation compares much more favorably to the multiple rack implementation that s typical for a discrete-component superchannel demonstration requiring 10 line cards of 100 Gbps of capacity. High-order modulation Those of you with a cable, wireless, or xdsl technology background may already be familiar with higherorder phase modulation. Figure 3 shows the basic principle. Binary phase-shift keying (BPSK) uses two phase states per modulation symbol, which encodes 1 bit in that symbol. By adding multiplexing, PM-BPSK encodes 2 bits per symbol. We can add phase states to each symbol to encode additional bits, enabling us to transmit higher data rates with much better spectral efficiency. PM-BPSK will deliver 4 Tbps in the C-band, while PM-16QAM increases that to about 16 Tbps. But higher-order modulation comes at a price. Because optical fiber is a non-linear medium, each modulation symbol can only be transmitted at a certain power level before non-linear effects are triggered.
4 While PM-BPSK superchannels could from about 750 GHz (PM-BPSK) flexibility for Optical Transport depending on the balance of well be used for transpacific subma- to about 200 GHz (PM-16QAM). Network (OTN) transport contai- capacity and reach needed by the rine links, the reach of a PM-16QAM But all of these superchannels ners. The current OTN hierarchy network designer, it s necessary to superchannel may be limited. can be accommodated efficiently defines ODU0 (1.25G), ODU1 (2.5G), define an adaptable OTN contai- using a multiple of 12.5 GHz. ODU2 (10G), ODU3 (40G), ODU4 ner that can be sized accordingly. Going gridless In the short term, however, (100G), and ODUflex (n x 1.25G). At last December s ITU Study In explaining Figure 2, I had said service providers will need a super- ODUflex was ITU-T s response Group 15 meeting, an OTUadapt that 1 Tbps of capacity will require channel that can be deployed on for more flexible, lower-data-rate proposal gained widespread about the same amount of fiber an existing grid-based DWDM line containers. Since superchannels support from vendors, component spectrum regardless of how many system. So the first generation of may vary in their total capacity, companies, and service provi- subcarriers make up the super- commercial superchannel products ders. This flexibility would help channel. That s not true if the channels are forced apart to comply with a fixed grid ITU-T will use split spectrum superchannels, a term coined by the IETF. Split spectrum superchannels could BPSK 1 bit per symbol per to solve the nagging problem that OTN containers are often out of sync with next generation Ethernet G spacing. This recommendation defines several grid spacings, including 25 and 50 GHz. If we potentially be designed to operate on 25- or 50-GHz G694.1 grid line systems and will provide a seamless QPSK 2 bits per services. Gigabit Ethernet (GbE), 10GbE, and 40GbE all had different but significant issues in their assume a 10-carrier superchannel of 100G per subcarrier, using PM-QPSK, then the carrier width is migration from a grid-based to gridless architecture. Meanwhile, they ll also offer the required opera- 8QAM 3 bits per OTN mapping. OTUadapt will avoid these issues in the future especially since the data rate for about 37 GHz. That s too wide for a 25-GHz grid, yet using a 50-GHz grid will waste about 25% of tional scaling benefits and only sacrifice about 20 25% of the maximum ideal fiber spectrum 16QAM 4 bits per Ethernet services beyond 100GbE has not yet been defined (note the IEEE standard is expected the available fiber spectrum. (assuming PM-QPSK modulation). in the timeframe). For this reason ITU-T has updated G to include a flex grid option based on a 12.5-GHz granularity. The spectral width for a 1-Tbps gridless superchannel varies OTN flexibility An interesting technical challenge that results from superchannel architectures is the need for more FIGURE 3. Adding more bits to a symbol increases spectral efficiency, but the total power per symbol (before non-linear threshold is reached) is shown by the thick black circle. Flexible capacity DWDM superchannels potentially offer an ideal solution to the twin problems of increasing optical
5 transport capacity beyond 100 electronics, allowing this techno- for an engineering design. of Lightwave Technology, Vol. Gbps and providing the flexibi- logy to be delivered much more 24, No. 12, December lity to maximize the combination quickly than other options. The References 2. A. Saleh, J. Simmons, Technology of optical capacity and reach. By key to a multi-carrier superchan- 1. E. Desurvire, Capacity Demand and Architecture to Enable implementing a superchannel nel is the use of large scale PICs to and Technology Challenges the Explosive Growth of the with many optical carriers, we can reduce optical-circuit complexity for Lightwave Systems in the Internet, IEEE Communications reduce the requirement for exotic and offer the maximum flexibility Next Two Decades, Journal Magazine, January 2011.
The Challenges of Data Transmission toward Tbps Line rate in DWDM System for Long haul Transmission
, pp.209-216 http://dx.doi.org/10.14257/ijfgcn.2014.7.1.21 The Challenges of Data Transmission toward Tbps Line rate in DWDM System for Long haul Transmission Md. Shipon Ali Senior System Engineer, Technology
More informationGlobal Consumer Internet Traffic
Evolving Optical Transport Networks to 100G Lambdas and Beyond Gaylord Hart Infinera Abstract The cable industry is beginning to migrate to 100G core optical transport waves, which greatly improve fiber
More informationOptical Networks emerging technologies and architectures
Optical Networks emerging technologies and architectures Faculty of Computer Science, Electronics and Telecommunications Department of Telecommunications Artur Lasoń 100 Gb/s PM-QPSK (DP-QPSK) module Hot
More informationCisco PONC Pavan Voruganti Senior Product Manager. March 2015
Cisco PONC 2015 Pavan Voruganti Senior Product Manager March 2015 Bandwidth Explosion With a progressive uptake of video, IP, audio and cloud the compound annual growth rate (CAGR) of IP traffic is above
More informationDouble long-haul and ultra-long-haul capacity with Nokia Super Coherent Technology
Double long-haul and ultra-long-haul capacity with Nokia Super Coherent Technology Photonic Service Engine 2 100G transmission revolutionized long-haul DWDM transport by dramatically increasing capacity
More informationWelcome to the 100G Services Era. Kyle Hollasch Marketing Director Optical Networking 29 June 2016
Welcome to the 100G Services Era Kyle Hollasch Marketing Director Optical Networking 29 June 2016 Welcome to the 100G services era! Moore vs Shannon to the Rescue What s Next? Welcome to the 100G services
More informationMultiplexing. Chapter 8. Frequency Division Multiplexing Diagram. Frequency Division Multiplexing. Multiplexing
Multiplexing Chapter 8 Multiplexing Frequency Division Multiplexing FDM Useful bandwidth of medium exceeds required bandwidth of channel Each signal is modulated to a different carrier frequency Carrier
More informationTHE ROLE OF HIGHER BAUD RATES IN EVOLVING COHERENT TRANSPORT
WHITE PAPER THE ROLE OF HIGHER BAUD RATES IN EVOLVING COHERENT TRANSPORT Identifying the Benefits and Use Cases for Higher Baud Rates Since its emergence in the late 2000s, coherent technology has undergone
More informationInnovations in Coherent Technologies for Subsea Transmission Systems
Innovations in Coherent Technologies for Subsea Transmission Systems Anuj Malik Senior Product Manager 1 2015 Infinera The Challenge of Operational Scale Demand 40% CAGR for 5 years = 5X Scaling Data Rate
More information30 Gbaud Opto-Electronics and Raman Technologies for New Subsea Optical Communications
30 Gbaud Opto-Electronics and Raman Technologies for New Subsea Optical Communications 30 Gbaud opto-electronics and Raman technologies have quickly become the new standards for terrestrial backbone networks.
More informationGlobal Cloud Network Evolution
Global Cloud Network Evolution Peter Lam Senior Director of Systems Engineering, APAC 1 2015 Infinera The Tremendous Growth of Cloud Source: Computerworld 2015 Forecast Study 2 2015 Infinera ICP s are
More informationWhite Paper. 100G beyond 10km A global study coherent and PAM4 Technology. Date: By Ambroise Thirion
White Paper Date: 100G beyond 10km A global study coherent and PAM4 Technology By Ambroise Thirion Contents I. II. III. IV. The challenge of going beyond 10km on 100G links...3 Long reach technologies
More information40Gb/s Coherent DP-PSK for Submarine Applications
4Gb/s Coherent DP-PSK for Submarine Applications Jamie Gaudette, Elizabeth Rivera Hartling, Mark Hinds, John Sitch, Robert Hadaway Email: Nortel, 3 Carling Ave., Ottawa, ON, Canada
More informationEmerging Subsea Networks
CAPACITY OPTIMIZATION OF SUBMARINE CABLE THROUGH SMART SPECTRUM ENGINEERING Vincent Letellier (Alcatel-Lucent Submarine Networks), Christophe Mougin (Alcatel-Lucent Submarine Networks), Samuel Ogier (Alcatel-Lucent
More informationIntegrated Circuits for Wavelength Division De-multiplexing in the Electrical Domain
Integrated Circuits for Wavelength Division De-multiplexing in the Electrical Domain 1 H.C. Park, 1 M. Piels, 2 E. Bloch, 1 M. Lu, 1 A. Sivanathan, 3 Z. Griffith, 1 L. Johansson, 1 J. Bowers, 1 L. Coldren,
More informationInfinera OFC 2016 Technology Briefing
Infinera OFC 2016 Technology Briefing Dave Welch, President and Co-founder 22 March 2016 1 2016 Infinera Safe Harbor This presentation contains "forward-looking" statements that involve risks, uncertainties
More informationEmerging Subsea Networks
Transoceanic Transmission over 11,450km of Installed 10G System by Using Commercial 100G Dual-Carrier PDM-BPSK Ling Zhao, Hao Liu, Jiping Wen, Jiang Lin, Yanpu Wang, Xiaoyan Fan, Jing Ning Email: zhaoling0618@huaweimarine.com
More informationOptical Modulation for High Bit Rate Transport Technologies
Optical Modulation for High Bit Rate Transport Technologies By Ildefonso M. Polo I October, 2009 Technology Note Scope There are plenty of highly technical and extremely mathematical articles published
More informationfrom ocean to cloud THE FUTURE IS NOW - MAXIMIZING SPECTRAL EFFICIENCY AND CAPACITY USING MODERN COHERENT TRANSPONDER TECHNIQUES
Required OSNR (db/0.1nm RBW) @ 10-dB Q-factor THE FUTURE IS NOW - MAXIMIZING SPECTRAL EFFICIENCY AND CAPACITY USING MODERN COHERENT TRANSPONDER TECHNIQUES Neal S. Bergano, Georg Mohs, and Alexei Pilipetskii
More informationCS420/520 Axel Krings Page 1 Sequence 8
Chapter 8: Multiplexing CS420/520 Axel Krings Page 1 Multiplexing What is multiplexing? Frequency-Division Multiplexing Time-Division Multiplexing (Synchronous) Statistical Time-Division Multiplexing,
More informationWHITE PAPER. Spearheading the Evolution of Lightwave Transmission Systems
Spearheading the Evolution of Lightwave Transmission Systems Spearheading the Evolution of Lightwave Transmission Systems Although the lightwave links envisioned as early as the 80s had ushered in coherent
More informationXWDM Solution for 64 Terabit Optical Networking
XWDM Solution for 64 Terabit Optical Networking XWDM maximizes spectral efficiency AND spectrum without compromising reach, by bringing together field-proven technologies, namely Raman amplification and
More informationFrom static WDM transport to software-defined optics
From static WDM transport to software-defined optics Jörg-Peter Elbers, ADVA Optical Networking ECOC Market Focus - Sept 21 st, 2010 - Torino Outline Introduction Technologies Benefits Applications Summary
More informationPerformance Analysis Of Hybrid Optical OFDM System With High Order Dispersion Compensation
Performance Analysis Of Hybrid Optical OFDM System With High Order Dispersion Compensation Manpreet Singh Student, University College of Engineering, Punjabi University, Patiala, India. Abstract Orthogonal
More informationPhase Modulator for Higher Order Dispersion Compensation in Optical OFDM System
Phase Modulator for Higher Order Dispersion Compensation in Optical OFDM System Manpreet Singh 1, Karamjit Kaur 2 Student, University College of Engineering, Punjabi University, Patiala, India 1. Assistant
More informationCOHERENT DETECTION OPTICAL OFDM SYSTEM
342 COHERENT DETECTION OPTICAL OFDM SYSTEM Puneet Mittal, Nitesh Singh Chauhan, Anand Gaurav B.Tech student, Electronics and Communication Engineering, VIT University, Vellore, India Jabeena A Faculty,
More informationOptions for Increasing Subsea Cable System Capacity
Options for Increasing Subsea Cable System Capacity Reprint from Submarine Telecoms Forum Issue 97, November 2017 Pages 64-69 With the development of numerous capacity-hungry applications and cloud-based
More informationSplit spectrum: a multi-channel approach to elastic optical networking
Split spectrum: a multi-channel approach to elastic optical networking Ming Xia, 1,* R. Proietti, 2 Stefan Dahlfort, 1 and S. J. B. Yoo 2 1 Ericsson Research Silicon Valley, 200 Holger Way, San Jose, California
More informationWDM in backbone. Péter Barta Alcatel-Lucent
WDM in backbone Péter Barta Alcatel-Lucent 10. October 2012 AGENDA 1. ROADM solutions 2. 40G, 100G, 400G 2 1. ROADM solutions 3 Ch 1-8 Ch 9-16 Ch 25-32 Ch 17-24 ROADM solutions What to achieve? Typical
More informationEmerging Subsea Networks
Upgrading on the Longest Legacy Repeatered System with 100G DC-PDM- BPSK Jianping Li, Jiang Lin, Yanpu Wang (Huawei Marine Networks Co. Ltd) Email: Huawei Building, No.3 Shangdi
More informationEfficiently Supporting Aggressive Network Capacity Growth in Next-Generation ROADM Networks
Efficiently Supporting Aggressive Network Capacity Growth in Next-Generation ROADM Networks www.lumentum.com White Paper Introduction Society s demand for connectivity continues unabated and there is every
More informationMarkets and Trends for Tektronix 70GHz ATI Oscilloscope. Tom Freeman, Product Marketing Manager
Markets and Trends for Tektronix 70GHz ATI Oscilloscope Tom Freeman, Product Marketing Manager MSO/DPO70000 Series Real-Time Performance Oscilloscopes DPO70000C/DX MSO70000C/DX Digital Phosphor Oscilloscope
More informationCurrent Trends in Unrepeatered Systems
Current Trends in Unrepeatered Systems Wayne Pelouch (Xtera, Inc.) Email: wayne.pelouch@xtera.com Xtera, Inc. 500 W. Bethany Drive, suite 100, Allen, TX 75013, USA. Abstract: The current trends in unrepeatered
More informationFlexible Modulation Format For Future Optical Network
Flexible Modulation Format For Future Optical Network Li Rixin (rixin.li@polito.it) Supervisor: Prof. Vittorio Curri Prof. Andrea Carena DET, Politecnico Di Torino 7 Borsisti Day 20/01/2016 Roma Consortium
More informationfrom ocean to cloud WELCOME TO 400GB/S & 1TB/S ERA FOR HIGH SPECTRAL EFFICIENCY UNDERSEA SYSTEMS
WELCOME TO 400GB/S & 1TB/S ERA FOR HIGH SPECTRAL EFFICIENCY UNDERSEA SYSTEMS G. Charlet, O. Bertran-Pardo, M. Salsi, J. Renaudier, P. Tran, H. Mardoyan, P. Brindel, A. Ghazisaeidi, S. Bigo (Alcatel-Lucent
More informationDATASHEET G Data Center Interconnect (DCI) 100G Embedded DWDM (DWDM transciever in to Ethernet switch with no OEO transponder requirement)
SO-QSFP28-PAM4-Dxxxx QSFP28, 100GBase, PAM4, DWDM, SM, DDM, 80km*, LC OVERVIEW The SO-QSFP28-PAM4-Dxxxx is a pluggable QSFP28 DWDM transceiver designed for high capacity 100 Gigabit Ethernet (100GbE) Data
More information100G Coherent Transceiver Technologies for DWDM Metro Applications: Key Requirements and Design Trends
100G Coherent Transceiver Technologies for DWDM Metro Applications: Key Requirements and Design Trends Benny Mikkelsen benny.mikkelsen@acacia-inc.com ECOC, 2012 Market Focus Optical Networks Advances Outline
More informationOptical Measurements in 100 and 400 Gb/s Networks: Will Coherent Receivers Take Over? Fred Heismann
Optical Measurements in 100 and 400 Gb/s Networks: Will Coherent Receivers Take Over? Fred Heismann Chief Scientist Fiberoptic Test & Measurement Key Trends in DWDM and Impact on Test & Measurement Complex
More informationEmerging Subsea Networks
SLTE MODULATION FORMATS FOR LONG HAUL TRANSMISSION Bruce Nyman, Alexei Pilipetskii, Hussam Batshon Email: bnyman@te.com TE SubCom, 250 Industrial Way, Eatontown, NJ 07724 USA Abstract: The invention of
More informationEmerging Subsea Networks
Optimization of Pulse Shaping Scheme and Multiplexing/Demultiplexing Configuration for Ultra-Dense WDM based on mqam Modulation Format Takanori Inoue, Yoshihisa Inada, Eduardo Mateo, Takaaki Ogata (NEC
More informationLow Power DSP and Photonic Integration in Optical Networks. Atul Srivastava CTO, NTT Electronics - America. Market Focus ECOC 2014
Low Power DSP and Photonic Integration in Optical Networks Atul Srivastava CTO, NTT Electronics - America Market Focus ECOC 2014 Outline 100G Deployment Rapid Growth in Long Haul Role of Modules New Low
More informationfrom ocean to cloud LATENCY REDUCTION VIA BYPASSING SOFT-DECISION FEC OVER SUBMARINE SYSTEMS
LATENCY REDUCTION VIA BYPASSING SOFT-DECISION FEC OVER SUBMARINE SYSTEMS Shaoliang Zhang 1, Eduardo Mateo 2, Fatih Yaman 1, Yequn Zhang 1, Ivan Djordjevic 3, Yoshihisa Inada 2, Takanori Inoue 2, Takaaki
More informationfrom ocean to cloud TCM-QPSK PROVIDES 2DB GAIN OVER BPSK IN FESTOON LINKS
TCM-QPSK PROVIDES 2DB GAIN OVER BPSK IN FESTOON LINKS Pierre Mertz, Xiaohui Yang, Emily Burmeister, Han Sun, Steve Grubb, Serguei Papernyi (MPB Communications Inc.) Email: pmertz@infinera.com Infinera
More informationMeeting The Challenge of Cloud Scale Connectivity. Abhijit Chitambar Ph.D. Principal Product Manager Infinera
Meeting The Challenge of Cloud Scale Connectivity Abhijit Chitambar Ph.D. Principal Product Manager Infinera Coherent Optical Transport Market Trends Transition to >100G Wavelengths is Underway CSPs Still
More informationAdaptive Data Rates for Flexible Transceivers in Optical Networks
776 JOURNAL OF NETWORKS, VOL. 7, NO. 5, MAY 2012 Adaptive Data Rates for Flexible Transceivers in Optical Networks Brian T. Teipen 1, Michael H. Eiselt 1, Klaus Grobe 2, Jörg-Peter Elbers 2 1 ADVA AG Optical
More informationOptical Transport Tutorial
Optical Transport Tutorial 4 February 2015 2015 OpticalCloudInfra Proprietary 1 Content Optical Transport Basics Assessment of Optical Communication Quality Bit Error Rate and Q Factor Wavelength Division
More information40 Gb/s and 100 Gb/s Ultra Long Haul Submarine Systems
4 Gb/s and 1 Gb/s Ultra Long Haul Submarine Systems Jamie Gaudette, John Sitch, Mark Hinds, Elizabeth Rivera Hartling, Phil Rolle, Robert Hadaway, Kim Roberts [Nortel], Brian Smith, Dean Veverka [Southern
More informationData and Computer Communications Chapter 8 Multiplexing
Data and Computer Communications Chapter 8 Multiplexing Eighth Edition by William Stallings 1 Multiplexing multiple links on 1 physical line common on long-haul, high capacity, links have FDM, TDM, STDM
More informationEmerging Subsea Networks
A SOLUTION FOR FLEXIBLE AND HIGHLY CONNECTED SUBMARINE NETWORKS Arnaud Leroy, Pascal Pecci, Caroline Bardelay-Guyot & Olivier Courtois (ASN) Email: arnaud.leroy@alcatel-lucent.com ASN, Centre de Villarceaux,
More informationWDM. Coarse WDM. Nortel's WDM System
WDM wavelength-division multiplexing (WDM) is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths (i.e. colors) of laser light.
More informationApplications: communications and information processing
MSc in Photonics & Europhotonics Laser Systems and Applications 2016/2017 Applications: communications and information processing Prof. Cristina Masoller Universitat Politècnica de Catalunya cristina.masoller@upc.edu
More informationTechnologies for Optical Transceivers and Optical Nodes to Increase Transmission Capacity to 100 Tbps
Technologies for Optical Transceivers and Optical Nodes to Increase Transmission Capacity to 100 Tbps Takeshi Hoshida Takahito Tanimura Tomoyuki Kato Shigeki Watanabe Zhenning Tao Enhancing the capacity
More informationCisco s CLEC Networkers Power Session
Course Number Presentation_ID 1 Cisco s CLEC Networkers Power Session Session 2 The Business Case for ONS 15800 3 What s Driving the Demand? Data Voice 4 What s Driving the Demand? Internet 36,700,000
More informationNext Generation Optical Communication Systems
Next-Generation Optical Communication Systems Photonics Laboratory Department of Microtechnology and Nanoscience (MC2) Chalmers University of Technology May 10, 2010 SSF project mid-term presentation Outline
More informationNext-Generation Optical Fiber Network Communication
Next-Generation Optical Fiber Network Communication Naveen Panwar; Pankaj Kumar & manupanwar46@gmail.com & chandra.pankaj30@gmail.com ABSTRACT: In all over the world, much higher order off modulation formats
More informationET4254 Communications and Networking 1
Topic 5 Look at multiplexing multiple channels on a single link FDM TDM Statistical TDM ASDL and xdsl 1 Multiplexing multiple links on 1 physical line common on long-haul, high capacity, links have FDM,
More informationAnalytical Estimation in Differential Optical Transmission Systems Influenced by Equalization Enhanced Phase Noise
Analytical Estimation in Differential Optical Transmission Systems Influenced by Equalization Enhanced Phase Noise Tianhua Xu 1,*,Gunnar Jacobsen 2,3,Sergei Popov 2, Tiegen Liu 4, Yimo Zhang 4, and Polina
More informationCISCO DWDM GBICS. Figure 1. Cisco DWDM GBICs. Main features of the Cisco DWDM GBICs:
DATA SHEET CISCO DWDM GBICS The Cisco Dense Wavelength-Division Multiplexing (DWDM) Gigabit Interface Converter (GBIC) pluggables allow enterprise companies and service providers to provide scalable and
More informationMultiplexing. Timeline. Multiplexing. Types. Optically
Multiplexing Multiplexing a process where multiple analog message signals or digital data streams are combined into one signal over a shared medium Types Time division multiplexing Frequency division multiplexing
More informationThursday, April 17, 2008, 6:28:40
Wavelength Division Multiplexing By: Gurudatha Pai K gurudatha@gmail.com Thursday, April 17, 2008, 6:28:40 Overview Introduction Popular Multiplexing Techniques Optical Networking WDM An Analogy of Multiplexing
More informationEmerging Subsea Networks
EVALUATION OF NONLINEAR IMPAIRMENT FROM NARROW- BAND UNPOLARIZED IDLERS IN COHERENT TRANSMISSION ON DISPERSION-MANAGED SUBMARINE CABLE SYSTEMS Masashi Binkai, Keisuke Matsuda, Tsuyoshi Yoshida, Naoki Suzuki,
More informationImplementing of High Capacity Tbps DWDM System Optical Network
, pp. 211-218 http://dx.doi.org/10.14257/ijfgcn.2016.9.6.20 Implementing of High Capacity Tbps DWDM System Optical Network Daleep Singh Sekhon *, Harmandar Kaur Deptt.of ECE, GNDU Regional Campus, Jalandhar,Punjab,India
More informationTELECOMMUNICATIONS. Y-Packet Y-Trunk Y-Split Y-Haul
TELECOMMUNICATIONS Y-Packet Y-Trunk Y-Split Y-Haul > 20 000 microwave radio have been produced for last 10 years > 100 international partners > 50 countries all over the world receive Youncta s products
More informationA Business Case for Employing Direct RF Transmission over Optical Fiber In Place of CPRI for 4G and 5G Fronthaul
A Business Case for Employing Direct RF Transmission over Optical Fiber In Place of CPRI for 4G and 5G Fronthaul Presented by APIC Corporation 5800 Uplander Way Culver City, CA 90230 www.apichip.com sales@apichip.com
More informationCoherent Receivers: A New Paradigm For Optical Components. ECOC Market Focus September 20, 2010
Photonic Integrated Circuit Based Coherent Receivers: A New Paradigm For Optical Components G. Ferris Lipscomb ECOC Market Focus September 20, 2010 Agenda Advanced Coding Schemes Use Phase Encoding To
More informationfrom ocean to cloud Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut, Einsteinufer 37, D-10587, Berlin, Germany
Single- versus Dual-Carrier Transmission for Installed Submarine Cable Upgrades Lutz Molle, Markus Nölle, Colja Schubert (Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut), Wai Wong,
More informationGS7000 & GainMaker Reverse Segmentable Node bdr Digital Reverse 2:1 Multiplexing System
Optoelectronics GS7000 & GainMaker Reverse Segmentable Node bdr Digital Reverse 2:1 Multiplexing System Description The bdr Digital Reverse 2:1 Multiplexing System expands the functionality of the Scientific-Atlanta
More informationLight Polarized Coherent OFDM Free Space Optical System
International Journal of Information & Computation Technology. ISSN 0974-2239 Volume 4, Number 14 (2014), pp. 1367-1372 International Research Publications House http://www. irphouse.com Light Polarized
More informationWavelength Multiplexing. The Target
The Target Design a MAN* like fiber network for high data transmission rates. The network is partial below sea level and difficult to install and to maintain. Such a fiber network demands an optimized
More informationA review on optical time division multiplexing (OTDM)
International Journal of Academic Research and Development ISSN: 2455-4197 Impact Factor: RJIF 5.22 www.academicsjournal.com Volume 3; Issue 1; January 2018; Page No. 520-524 A review on optical time division
More informationOptical Communications and Networks - Review and Evolution (OPTI 500) Massoud Karbassian
Optical Communications and Networks - Review and Evolution (OPTI 500) Massoud Karbassian m.karbassian@arizona.edu Contents Optical Communications: Review Optical Communications and Photonics Why Photonics?
More information40Gb/s & 100Gb/s Transport in the WAN Dr. Olga Vassilieva Fujitsu Laboratories of America, Inc. Richardson, Texas
40Gb/s & 100Gb/s Transport in the WAN Dr. Olga Vassilieva Fujitsu Laboratories of America, Inc. Richardson, Texas All Rights Reserved, 2007 Fujitsu Laboratories of America, Inc. Outline Introduction Challenges
More informationKeysight Technologies Characterizing High-Speed Coherent Optical Transmission Systems
Keysight Technologies Characterizing High-Speed Coherent Optical Transmission Systems Application Brief M8195A 65 GSa/s Arbitrary Waveform Generator N4391A Optical Modulation Analyzer & N4392A Integrated
More informationPower-Efficiency Comparison of Spectrum- Efficient Optical Networks
Power-Efficiency Comparison of Spectrum- Efficient Optical Networs Sridhar Iyer Abstract With steady traffic volume growth in the core networs, it is predicted that the future optical networ communication
More informationContents for this Presentation. Multi-Service Transport
Contents for this Presentation SDH/DWDM based Multi-Service Transport Platform by Khurram Shahzad ad Brief Contents Description for this of Presentation the Project Development of a Unified Transport Platform
More informationFiber Characterization Test Equipment
Introduction Competitive market pressures demand that service providers continuously upgrade and maintain their networks to ensure the delivery of higher-speed, higher-quality applications and services
More informationData Communications and Networks
Data Communications and Networks Engr. Abdul Rahman Mahmood MS, MCP, QMR(ISO9001:2000) Usman Institute of Technology University Road, Karachi armahmood786@yahoo.com alphasecure@gmail.com alphapeeler.sf.net/pubkeys/pkey.htm
More informationSilicon Photonics Photo-Detector Announcement. Mario Paniccia Intel Fellow Director, Photonics Technology Lab
Silicon Photonics Photo-Detector Announcement Mario Paniccia Intel Fellow Director, Photonics Technology Lab Agenda Intel s Silicon Photonics Research 40G Modulator Recap 40G Photodetector Announcement
More informationGS7000 and GainMaker Reverse Segmentable Node bdr Digital Reverse 2:1 Multiplexing System
GS7000 and GainMaker Reverse Segmentable Node bdr Digital Reverse 2:1 Multiplexing System The bdr Digital Reverse 2:1 Multiplexing System expands the functionality of the GS7000 and GainMaker Reverse Segmentable
More informationLecture 2. Introduction to Optical. Ivan Avrutsky, ECE 5870 Optical Communication Networks, Lecture 2. Slide 1
Lecture 2 Introduction to Optical Networks Ivan Avrutsky, ECE 5870 Optical Communication Networks, Lecture 2 Slide 1 Optical Communication Networks 1. Why optical? 2. How does it work? 3. How to design
More informationOptical Communications and Networks - Review and Evolution (OPTI 500) Massoud Karbassian
Optical Communications and Networks - Review and Evolution (OPTI 500) Massoud Karbassian m.karbassian@arizona.edu Contents Optical Communications: Review Optical Communications and Photonics Why Photonics?
More information1.6 Tbps High Speed Long Reach DWDM System by incorporating Modified Duobinary Modulation Scheme
Research Article International Journal of Current Engineering and Technology E-ISSN 2277 4106, P-ISSN 2347-5161 2014 INPRESSCO, All Rights Reserved Available at http://inpressco.com/category/ijcet 1.6
More informationChoosing an Oscilloscope for Coherent Optical Modulation Analysis
Choosing an for Coherent Optical Modulation Analysis Technical Brief As demand for data increases, network operators continue to search for methods to increase data throughput of existing optical networks.
More informationL évolution des systèmes de transmission optique très haut débit et l impact de la photonique sur silicium
L évolution des systèmes de transmission optique très haut débit et l impact de la photonique sur silicium G. Charlet 27-November-2017 1 Introduction Evolution of long distance transmission systems: from
More informationLast Time. Transferring Information. Today (& Tomorrow (& Tmrw)) Application Layer Example Protocols ftp http Performance.
15-441 Lecture 5 Last Time Physical Layer & Link Layer Basics Copyright Seth Goldstein, 2008 Application Layer Example Protocols ftp http Performance Application Presentation Session Transport Network
More informationRelea Re s lea e 7 se
Release 7.7 8.2 Data Sheet FibeAir IP-20C Compact All-Outdoor Multi-Core Node FibeAir IP-20C sets a new standard in microwave transmission combining multi-core radio technology and LoS 4X4 MIMO for ultra-high
More informationInternational Journal of Scientific & Engineering Research, Volume 5, Issue 4, April ISSN
International Journal of Scientific & Engineering Research, Volume 5, Issue 4, April-2014 197 A Novel Method for Non linear effect Cross Phase Modulation due to various data rates in Dynamic Wavelength
More informationSingle- versus Dual-Carrier Transmission for Installed Submarine Cable Upgrades
Single- versus Dual-Carrier Transmission for Installed Submarine Cable Upgrades L. Molle, M. Nölle, C. Schubert (Fraunhofer Institute for Telecommunications, HHI) W. Wong, S. Webb, J. Schwartz (Xtera Communications)
More informationOFDMA and MIMO Notes
OFDMA and MIMO Notes EE 442 Spring Semester Lecture 14 Orthogonal Frequency Division Multiplexing (OFDM) is a digital multi-carrier modulation technique extending the concept of single subcarrier modulation
More informationInnovations in Photonic Integration Platforms
Innovations in Photonic Integration Platforms September 20, 20 Burgeoning Growth Demand Disruptive Technology Video content is fast becoming a larger percentage of total internet traffic 50% Video services
More informationBeyond 100 Gbit/s wireless connectivity enabled by THz photonics
Downloaded from orbit.dtu.dk on: Dec 11, 218 Beyond 1 Gbit/s wireless connectivity enabled by THz photonics Yu, Xianbin; Jia, Shi; Pang, Xiaodan; Morioka, Toshio; Oxenløwe, Leif Katsuo Published in: Proceedings
More informationPeter J. Winzer Bell Labs, Alcatel-Lucent. Special thanks to: R.-J. Essiambre, A. Gnauck, G. Raybon, C. Doerr
Optically-routed long-haul networks Peter J. Winzer Bell Labs, Alcatel-Lucent Special thanks to: R.-J. Essiambre, A. Gnauck, G. Raybon, C. Doerr Outline Need and drivers for transport capacity Spectral
More informationCodeSScientific OCSim Modules Modern Fiber Optic Communication Systems Simulations With Advanced Level Matlab Modules APPLICATIONS
CodeSScientific OCSim Modules Modern Fiber Optic Communication Systems Simulations With Advanced Level Matlab Modules APPLICATIONS OCSim Modules** Modern Fiber Optic Communication Systems Simulations with
More informationLecture 5 Transmission
Lecture 5 Transmission David Andersen Department of Computer Science Carnegie Mellon University 15-441 Networking, Spring 2005 http://www.cs.cmu.edu/~srini/15-441/s05 1 Physical and Datalink Layers: 3
More informationIstituto Superiore Mario Boella, via P. C. Boggio 61, Torino - Italy
ECOC 2015 Paper Mo.3.4.3 Demonstration of upstream WDM+FDMA PON and real time implementation on an FPGA platform S. Straullu (1), P. Savio (1), A. Nespola (1), J. Chang (2) V. Ferrero (2), R. Gaudino (2),
More informationComputer Networks
15-441 Computer Networks Physical Layer Professor Hui Zhang hzhang@cs.cmu.edu 1 Communication & Physical Medium There were communications before computers There were communication networks before computer
More informationLecture 5 Transmission. Physical and Datalink Layers: 3 Lectures
Lecture 5 Transmission Peter Steenkiste School of Computer Science Department of Electrical and Computer Engineering Carnegie Mellon University 15-441 Networking, Spring 2004 http://www.cs.cmu.edu/~prs/15-441
More informationPERFORMANCE ENHANCEMENT OF 32 CHANNEL LONG HAUL DWDM SOLITON LINK USING ELECTRONIC DISPERSION COMPENSATION
International Journal of Electronics, Communication & Instrumentation Engineering Research and Development (IJECIERD) ISSN 2249-684X Vol. 2 Issue 4 Dec - 2012 11-16 TJPRC Pvt. Ltd., PERFORMANCE ENHANCEMENT
More informationCodeSScientific. OCSim Modules 2018 version 2.0. Fiber Optic Communication System Simulations Software Modules with Matlab
CodeSScientific OCSim Modules 2018 version 2.0 Fiber Optic Communication System Simulations Software Modules with Matlab Use the Existing Modules for Research Papers, Research Projects and Theses Modify
More informationImplementation and analysis of 2 Tbps MDRZ DWDM system at ultra narrow channel spacing
Implementation and analysis of 2 Tbps MDRZ DWDM system at ultra narrow channel spacing 1 Ragini Sharma, 2 Kamaldeep Kaur 1 Student, 2 Assistant Professor Department of Electrical Engineering BBSBEC, Fatehgarh
More information