This document discusses hybrid CWDM/DWDM optical networks using JDS Uniphase WaveReady products. It describes how WaveReady modules allow existing CWDM networks to seamlessly merge DWDM and CWDM traffic at the optical layer, providing pay-as-you-grow capacity growth. Hybrid networks offer reduced costs through initial CWDM deployment with an upgrade path to DWDM as needs increase beyond 8 channels. The document also provides details on the theoretical and practical application of adding additional DWDM channels within the passbands of existing CWDM channels.
FiberStore CWDM Mux/Demux is a universal device capable of multiplex multiple CWDM (1270~1610nm) up to 18 channels or optical signals into a fiber pair or single fiber. FiberSotre provide full complete configuration like 2, 4, 5, 8, 9, 16, 18 channels. Optional wide band for existing 1310nm or 1550nm to multiplex with these CWDM channels. Fully utilize with the existing equipments. Together with our CWDM transceivers or the wavelength converters, the bandwidth of the fiber can be utilized in a cost effective way.
Hybrid DWDM/CWDM optical networks allow carriers to cost-effectively add capacity to existing CWDM networks. JDS Uniphase's WaveReady modules enable merging of DWDM and CWDM traffic seamlessly. This provides pay-as-you-grow capacity growth and protects existing investments. While CWDM supports 8 channels initially, WaveReady allows adding more DWDM channels within CWDM channel passbands, delivering up to 38 additional channels per passband and true scalability.
Course Wave Division Multiplexing (CWDM): TechNet Augusta 2015AFCEA International
August 24, 2015
Dennis Troxel
Transition Networks
This Technology overview outlines the technology of Course Wave Division Multiplexing including real world government application examples to demonstrate the value of:
A) Overcoming Fiber Exhaustion
B) Increasing Fiber Bandwidth capacity
C) Providing Multiple Services over existing Fiber Pairs
This document provides an introduction to Dense Wavelength Division Multiplexing (DWDM) technology. It discusses the economic drivers pushing for increased bandwidth in networks, and describes DWDM as an option for increasing carrier bandwidth by allowing multiple wavelengths of light to be transmitted simultaneously along the same fiber. The document outlines some key components of DWDM systems, such as optical fibers, light sources and detectors, optical amplifiers, and multiplexers/demultiplexers. It also notes some benefits of using DWDM with SONET, such as enhanced performance, reliability, and network management capabilities.
you can be friend with me on orkut
"mangalforyou@gmail.com" : i belive in sharing the knowledge so please send project reports ,seminar and ppt. to me .
This document provides an overview of dense wavelength division multiplexing (DWDM) technology. It discusses how the growing demand for bandwidth has overwhelmed existing telecommunications infrastructure. DWDM is presented as a solution that multiplies the capacity of existing fiber networks by transmitting multiple optical signals simultaneously on different wavelengths. The document provides background on the development of DWDM and its ability to significantly increase fiber capacity.
Three techniques for generating millimeter-wave signals for high-capacity wireless links are discussed:
1) Direct intensity modulation with direct detection, which is difficult to scale to high frequencies.
2) Photonic generation and RF heterodyning, which requires stringent laser linewidth requirements but is scalable to high frequencies.
3) Experimental generation of a 100Gbps wireless signal using optical baseband 16-QAM generation, photonic upconversion with a free-running laser, and double-stage downconversion.
FiberStore CWDM Mux/Demux is a universal device capable of multiplex multiple CWDM (1270~1610nm) up to 18 channels or optical signals into a fiber pair or single fiber. FiberSotre provide full complete configuration like 2, 4, 5, 8, 9, 16, 18 channels. Optional wide band for existing 1310nm or 1550nm to multiplex with these CWDM channels. Fully utilize with the existing equipments. Together with our CWDM transceivers or the wavelength converters, the bandwidth of the fiber can be utilized in a cost effective way.
Hybrid DWDM/CWDM optical networks allow carriers to cost-effectively add capacity to existing CWDM networks. JDS Uniphase's WaveReady modules enable merging of DWDM and CWDM traffic seamlessly. This provides pay-as-you-grow capacity growth and protects existing investments. While CWDM supports 8 channels initially, WaveReady allows adding more DWDM channels within CWDM channel passbands, delivering up to 38 additional channels per passband and true scalability.
Course Wave Division Multiplexing (CWDM): TechNet Augusta 2015AFCEA International
August 24, 2015
Dennis Troxel
Transition Networks
This Technology overview outlines the technology of Course Wave Division Multiplexing including real world government application examples to demonstrate the value of:
A) Overcoming Fiber Exhaustion
B) Increasing Fiber Bandwidth capacity
C) Providing Multiple Services over existing Fiber Pairs
This document provides an introduction to Dense Wavelength Division Multiplexing (DWDM) technology. It discusses the economic drivers pushing for increased bandwidth in networks, and describes DWDM as an option for increasing carrier bandwidth by allowing multiple wavelengths of light to be transmitted simultaneously along the same fiber. The document outlines some key components of DWDM systems, such as optical fibers, light sources and detectors, optical amplifiers, and multiplexers/demultiplexers. It also notes some benefits of using DWDM with SONET, such as enhanced performance, reliability, and network management capabilities.
you can be friend with me on orkut
"mangalforyou@gmail.com" : i belive in sharing the knowledge so please send project reports ,seminar and ppt. to me .
This document provides an overview of dense wavelength division multiplexing (DWDM) technology. It discusses how the growing demand for bandwidth has overwhelmed existing telecommunications infrastructure. DWDM is presented as a solution that multiplies the capacity of existing fiber networks by transmitting multiple optical signals simultaneously on different wavelengths. The document provides background on the development of DWDM and its ability to significantly increase fiber capacity.
Three techniques for generating millimeter-wave signals for high-capacity wireless links are discussed:
1) Direct intensity modulation with direct detection, which is difficult to scale to high frequencies.
2) Photonic generation and RF heterodyning, which requires stringent laser linewidth requirements but is scalable to high frequencies.
3) Experimental generation of a 100Gbps wireless signal using optical baseband 16-QAM generation, photonic upconversion with a free-running laser, and double-stage downconversion.
CWDM and DWDM are two types of wavelength division multiplexing technologies used to transmit multiple signals over a single optical fiber. CWDM uses coarser wavelength spacing and transmits signals over shorter distances, while DWDM has denser wavelength spacing and can transmit signals over much longer distances. Key differences are that CWDM uses wider frequency ranges and has wavelengths spaced farther apart compared to DWDM, which tightly packs wavelengths together. Additionally, CWDM is not amplified and is intended for shorter range applications, whereas DWDM can utilize amplification to transmit signals over thousands of kilometers.
CWDM and DWDM are both types of WDM systems that transmit multiple wavelengths of laser light through a single optical fiber. However, they differ in channel spacing, transmission reach, and cost. CWDM has a wider channel spacing of 20nm, a shorter transmission reach of 160km, and a lower cost compared to DWDM. DWDM has a narrower channel spacing of 0.2-0.8nm, can transmit signals over longer distances, and has a higher cost due to its use of temperature-controlled lasers. The key differences are that CWDM is cheaper but has lower performance, while DWDM has a higher performance but also a higher cost.
Bandwidth is Becoming Commodity :
Price per bit went down by 99% in the last 5 years on the optical side
This is one of the problems of the current telecom market
Optical Metro – cheap high bandwidth access
$1000 a month for 100FX (in major cities)
This is less than the cost of T1 several years ago
Optical Long-Haul and Metro access - change of the price point
Reasonable price drive more users (non residential)
The document discusses Dense Wave Division Multiplexing (DWDM) and All Optical Networking (AON). It addresses the challenges of increasing bandwidth demand and the need for network capacity expansion. DWDM allows multiple optical signals to be multiplexed onto a single fiber with no signal conversion, increasing network capacity. AON would enable fully transparent optical networks using optical cross-connects and add/drop multiplexers without optical-electrical-optical conversion. Research is ongoing to develop the technologies needed to realize AON.
This document provides an overview of optical DWDM fundamentals, including:
- Key terminology used in optical networks such as decibels, wavelength, frequency, and fiber impairments.
- Characteristics of optical fiber including different fiber types, fiber dimensions, and how light propagates through total internal reflection.
- Factors that reduce optical power over distance, specifically attenuation from absorption and scattering in the fiber material.
This document discusses wavelength division multiplexing (WDM) and dense wavelength division multiplexing (DWDM). It describes how WDM uses different wavelengths to transmit multiple signals over the same fiber, with wider channel spacing. DWDM is then introduced as a way to increase capacity by reducing channel spacing. The key advantages and disadvantages of both WDM and DWDM are outlined. Standards for DWDM channel plans are also mentioned.
Optical Fibre & Introduction to TDM & DWDMHasna Heng
This presentation provides an overview of Dense Wavelength Division Multiplexing (DWDM) technology. It begins with an introduction to optical fiber transmission systems and their evolution. It then discusses the basic principles and components of DWDM, including terminal multiplexers and demultiplexers, optical amplifiers, and optical add-drop multiplexers. DWDM allows numerous wavelengths to be transmitted simultaneously, greatly increasing network capacity. Key benefits of DWDM include scalability and the ability to add additional capacity without laying more fiber. Nonlinear effects present challenges but recent advances have achieved transmission capacities over 20 terabits per second. Overall, DWDM plays a crucial role in high-capacity optical networks.
The document provides an overview of optical DWDM fundamentals, including terminology, fiber characteristics, and transmission effects. It discusses key topics such as optical propagation in fibers, attenuation and compensation using optical amplifiers, dispersion types and limitations, and wavelength grids. Diagrams and examples are used to illustrate optical power measurements, budgets, safety classifications, and the impacts of attenuation and dispersion on transmission performance.
This document provides an overview of Dense Wavelength Division Multiplexing (DWDM) technology. It discusses key topics such as optical transmission, DWDM components like multiplexers/demultiplexers and amplifiers, DWDM networks and topologies, and transmission quality parameters. The presentation contains 32 slides and is intended to briefly explain DWDM as a means of achieving effective fiber-optic transmission and increasing bandwidth.
DWDM & Packet Optical Fundamentals by Dion Leung [APRICOT 2015]APNIC
This document provides an overview of optical networking fundamentals and components for designing DWDM networks. It discusses:
- Key components used to build optical networks including fiber, transceivers, muxponders, amplifiers, and dispersion compensation modules.
- Design considerations for point-to-point and multi-node linear DWDM networks such as length, number of fiber strands, fiber type and condition, transmission capacity needs, and calculating power budgets.
- The roles of optical amplifiers and dispersion compensation in extending transmission reach over long distances and high bitrates.
- A quick summary of the essential "lego blocks" used to construct metro and regional optical networks.
This document provides an executive summary of a two-day lecture series on optics-microwave interactions. The first day covered an overview of the field and state-of-the-art, hybrid integration of optoelectronic components, and optoelectronic transducers. Applications presented included fiber-fed radio systems, optical distribution of RF/millimeter-wave signals, and applications to phased arrays. The second day covered optical processing and control of microwave signals, optical networks for radar and electronic warfare, and novel techniques in optical analog-to-digital converters and medical imaging. The material supported lectures held in France, Germany, and Hungary in September 2002 under sponsorship of RTO's Sensors and Electronics Technology Panel.
This document analyzes the technical capabilities and limitations of cable systems to provide open access to multiple internet service providers (ISPs). It examines three types of cable architectures, evaluates two existing cable systems, and summarizes interviews with ISPs seeking access. The document concludes that while open access is technically feasible, current cable systems do not meet this standard due to the control operators maintain over services and the potential for data manipulation or monitoring. It provides recommendations for cable operators to implement true open access.
This document provides information on the OCDBS-T-X 1310nm transmitter for CATV and satellite distribution networks. The transmitter converts multichannel CATV and SAT-IF video signals to a single optical output at 1310nm, allowing signal transmission over a single fiber to minimize equipment and infrastructure costs. Key features include automatic gain control, various optical wavelength and connector options, and compatibility with satellite and CATV distribution applications. Specifications include optical power output, frequency ranges, return loss, CNR and other performance parameters.
FTTH in China has seen rapid growth in recent years. The document discusses the current status and future trends of FTTH in mainland China. It provides an overview of the key driving forces for FTTH, including increased bandwidth demands, reduced system costs, and competition. The current state of FTTH research, development, deployment and standardization in China is analyzed, along with the major players and technologies. While progress has been made, challenges remain to further the widespread adoption of FTTH in China.
Cable modems allow high-speed internet access over existing cable TV networks. They have the potential to provide internet speeds over 100 times faster than traditional dial-up connections, at a lower cost. Cable modem systems work by sending data downstream from the cable headend to multiple users simultaneously, and sending data upstream from individual users to the headend. Early cable modem systems were proprietary, but standardization under DOCSIS has led to wider adoption and compatibility between equipment from different manufacturers. India is poised for significant growth in cable modem internet users as costs decline from traditional telephone-based access.
Docsis® based options for higher bandwidthherooftit
The document discusses using bonded DOCSIS channels to provide higher downstream bandwidth for multimedia applications on cable networks. Channel bonding involves grouping adjacent QAM channels so they share hardware, reducing costs. This allows over 100Mbps throughput per subscriber without plant upgrades. New silicon supports multiple DOCSIS channels. Channel bonding maintains backwards compatibility while providing growth options for competitive services like video streaming and conferencing. DOCSIS standards ensure high quality RF transmission that does not interfere with existing signals.
- The document discusses the introduction and evolution of DOCSIS standards for cable broadband, including DOCSIS 1.0, 1.1, and 2.0.
- It describes some of the key features of each standard, including asymmetric bandwidth allocation and modulation techniques for DOCSIS 1.0. The development and certification of equipment for each new standard took 2-2.5 years.
- DOCSIS 2.0 was released in late 2001 but widespread commercial equipment is not expected until late 2002 or 2003 as equipment is developed, tested, and certified. The document aims to clarify the benefits and misconceptions around DOCSIS 2.0.
❼❷⓿❺❻❷❽❷❼❽ Dpboss Matka Result Satta Matka Guessing Satta Fix jodi Kalyan Final ank Satta Matka Dpbos Final ank Satta Matta Matka 143 Kalyan Matka Guessing Final Matka Final ank Today Matka 420 Satta Batta Satta 143 Kalyan Chart Main Bazar Chart vip Matka Guessing Dpboss 143 Guessing Kalyan night
How MJ Global Leads the Packaging Industry.pdfMJ Global
MJ Global's success in staying ahead of the curve in the packaging industry is a testament to its dedication to innovation, sustainability, and customer-centricity. By embracing technological advancements, leading in eco-friendly solutions, collaborating with industry leaders, and adapting to evolving consumer preferences, MJ Global continues to set new standards in the packaging sector.
The APCO Geopolitical Radar - Q3 2024 The Global Operating Environment for Bu...APCO
The Radar reflects input from APCO’s teams located around the world. It distils a host of interconnected events and trends into insights to inform operational and strategic decisions. Issues covered in this edition include:
Zodiac Signs and Food Preferences_ What Your Sign Says About Your Tastemy Pandit
Know what your zodiac sign says about your taste in food! Explore how the 12 zodiac signs influence your culinary preferences with insights from MyPandit. Dive into astrology and flavors!
How to Implement a Real Estate CRM SoftwareSalesTown
To implement a CRM for real estate, set clear goals, choose a CRM with key real estate features, and customize it to your needs. Migrate your data, train your team, and use automation to save time. Monitor performance, ensure data security, and use the CRM to enhance marketing. Regularly check its effectiveness to improve your business.
CWDM and DWDM are two types of wavelength division multiplexing technologies used to transmit multiple signals over a single optical fiber. CWDM uses coarser wavelength spacing and transmits signals over shorter distances, while DWDM has denser wavelength spacing and can transmit signals over much longer distances. Key differences are that CWDM uses wider frequency ranges and has wavelengths spaced farther apart compared to DWDM, which tightly packs wavelengths together. Additionally, CWDM is not amplified and is intended for shorter range applications, whereas DWDM can utilize amplification to transmit signals over thousands of kilometers.
CWDM and DWDM are both types of WDM systems that transmit multiple wavelengths of laser light through a single optical fiber. However, they differ in channel spacing, transmission reach, and cost. CWDM has a wider channel spacing of 20nm, a shorter transmission reach of 160km, and a lower cost compared to DWDM. DWDM has a narrower channel spacing of 0.2-0.8nm, can transmit signals over longer distances, and has a higher cost due to its use of temperature-controlled lasers. The key differences are that CWDM is cheaper but has lower performance, while DWDM has a higher performance but also a higher cost.
Bandwidth is Becoming Commodity :
Price per bit went down by 99% in the last 5 years on the optical side
This is one of the problems of the current telecom market
Optical Metro – cheap high bandwidth access
$1000 a month for 100FX (in major cities)
This is less than the cost of T1 several years ago
Optical Long-Haul and Metro access - change of the price point
Reasonable price drive more users (non residential)
The document discusses Dense Wave Division Multiplexing (DWDM) and All Optical Networking (AON). It addresses the challenges of increasing bandwidth demand and the need for network capacity expansion. DWDM allows multiple optical signals to be multiplexed onto a single fiber with no signal conversion, increasing network capacity. AON would enable fully transparent optical networks using optical cross-connects and add/drop multiplexers without optical-electrical-optical conversion. Research is ongoing to develop the technologies needed to realize AON.
This document provides an overview of optical DWDM fundamentals, including:
- Key terminology used in optical networks such as decibels, wavelength, frequency, and fiber impairments.
- Characteristics of optical fiber including different fiber types, fiber dimensions, and how light propagates through total internal reflection.
- Factors that reduce optical power over distance, specifically attenuation from absorption and scattering in the fiber material.
This document discusses wavelength division multiplexing (WDM) and dense wavelength division multiplexing (DWDM). It describes how WDM uses different wavelengths to transmit multiple signals over the same fiber, with wider channel spacing. DWDM is then introduced as a way to increase capacity by reducing channel spacing. The key advantages and disadvantages of both WDM and DWDM are outlined. Standards for DWDM channel plans are also mentioned.
Optical Fibre & Introduction to TDM & DWDMHasna Heng
This presentation provides an overview of Dense Wavelength Division Multiplexing (DWDM) technology. It begins with an introduction to optical fiber transmission systems and their evolution. It then discusses the basic principles and components of DWDM, including terminal multiplexers and demultiplexers, optical amplifiers, and optical add-drop multiplexers. DWDM allows numerous wavelengths to be transmitted simultaneously, greatly increasing network capacity. Key benefits of DWDM include scalability and the ability to add additional capacity without laying more fiber. Nonlinear effects present challenges but recent advances have achieved transmission capacities over 20 terabits per second. Overall, DWDM plays a crucial role in high-capacity optical networks.
The document provides an overview of optical DWDM fundamentals, including terminology, fiber characteristics, and transmission effects. It discusses key topics such as optical propagation in fibers, attenuation and compensation using optical amplifiers, dispersion types and limitations, and wavelength grids. Diagrams and examples are used to illustrate optical power measurements, budgets, safety classifications, and the impacts of attenuation and dispersion on transmission performance.
This document provides an overview of Dense Wavelength Division Multiplexing (DWDM) technology. It discusses key topics such as optical transmission, DWDM components like multiplexers/demultiplexers and amplifiers, DWDM networks and topologies, and transmission quality parameters. The presentation contains 32 slides and is intended to briefly explain DWDM as a means of achieving effective fiber-optic transmission and increasing bandwidth.
DWDM & Packet Optical Fundamentals by Dion Leung [APRICOT 2015]APNIC
This document provides an overview of optical networking fundamentals and components for designing DWDM networks. It discusses:
- Key components used to build optical networks including fiber, transceivers, muxponders, amplifiers, and dispersion compensation modules.
- Design considerations for point-to-point and multi-node linear DWDM networks such as length, number of fiber strands, fiber type and condition, transmission capacity needs, and calculating power budgets.
- The roles of optical amplifiers and dispersion compensation in extending transmission reach over long distances and high bitrates.
- A quick summary of the essential "lego blocks" used to construct metro and regional optical networks.
This document provides an executive summary of a two-day lecture series on optics-microwave interactions. The first day covered an overview of the field and state-of-the-art, hybrid integration of optoelectronic components, and optoelectronic transducers. Applications presented included fiber-fed radio systems, optical distribution of RF/millimeter-wave signals, and applications to phased arrays. The second day covered optical processing and control of microwave signals, optical networks for radar and electronic warfare, and novel techniques in optical analog-to-digital converters and medical imaging. The material supported lectures held in France, Germany, and Hungary in September 2002 under sponsorship of RTO's Sensors and Electronics Technology Panel.
This document analyzes the technical capabilities and limitations of cable systems to provide open access to multiple internet service providers (ISPs). It examines three types of cable architectures, evaluates two existing cable systems, and summarizes interviews with ISPs seeking access. The document concludes that while open access is technically feasible, current cable systems do not meet this standard due to the control operators maintain over services and the potential for data manipulation or monitoring. It provides recommendations for cable operators to implement true open access.
This document provides information on the OCDBS-T-X 1310nm transmitter for CATV and satellite distribution networks. The transmitter converts multichannel CATV and SAT-IF video signals to a single optical output at 1310nm, allowing signal transmission over a single fiber to minimize equipment and infrastructure costs. Key features include automatic gain control, various optical wavelength and connector options, and compatibility with satellite and CATV distribution applications. Specifications include optical power output, frequency ranges, return loss, CNR and other performance parameters.
FTTH in China has seen rapid growth in recent years. The document discusses the current status and future trends of FTTH in mainland China. It provides an overview of the key driving forces for FTTH, including increased bandwidth demands, reduced system costs, and competition. The current state of FTTH research, development, deployment and standardization in China is analyzed, along with the major players and technologies. While progress has been made, challenges remain to further the widespread adoption of FTTH in China.
Cable modems allow high-speed internet access over existing cable TV networks. They have the potential to provide internet speeds over 100 times faster than traditional dial-up connections, at a lower cost. Cable modem systems work by sending data downstream from the cable headend to multiple users simultaneously, and sending data upstream from individual users to the headend. Early cable modem systems were proprietary, but standardization under DOCSIS has led to wider adoption and compatibility between equipment from different manufacturers. India is poised for significant growth in cable modem internet users as costs decline from traditional telephone-based access.
Docsis® based options for higher bandwidthherooftit
The document discusses using bonded DOCSIS channels to provide higher downstream bandwidth for multimedia applications on cable networks. Channel bonding involves grouping adjacent QAM channels so they share hardware, reducing costs. This allows over 100Mbps throughput per subscriber without plant upgrades. New silicon supports multiple DOCSIS channels. Channel bonding maintains backwards compatibility while providing growth options for competitive services like video streaming and conferencing. DOCSIS standards ensure high quality RF transmission that does not interfere with existing signals.
- The document discusses the introduction and evolution of DOCSIS standards for cable broadband, including DOCSIS 1.0, 1.1, and 2.0.
- It describes some of the key features of each standard, including asymmetric bandwidth allocation and modulation techniques for DOCSIS 1.0. The development and certification of equipment for each new standard took 2-2.5 years.
- DOCSIS 2.0 was released in late 2001 but widespread commercial equipment is not expected until late 2002 or 2003 as equipment is developed, tested, and certified. The document aims to clarify the benefits and misconceptions around DOCSIS 2.0.
❼❷⓿❺❻❷❽❷❼❽ Dpboss Matka Result Satta Matka Guessing Satta Fix jodi Kalyan Final ank Satta Matka Dpbos Final ank Satta Matta Matka 143 Kalyan Matka Guessing Final Matka Final ank Today Matka 420 Satta Batta Satta 143 Kalyan Chart Main Bazar Chart vip Matka Guessing Dpboss 143 Guessing Kalyan night
How MJ Global Leads the Packaging Industry.pdfMJ Global
MJ Global's success in staying ahead of the curve in the packaging industry is a testament to its dedication to innovation, sustainability, and customer-centricity. By embracing technological advancements, leading in eco-friendly solutions, collaborating with industry leaders, and adapting to evolving consumer preferences, MJ Global continues to set new standards in the packaging sector.
The APCO Geopolitical Radar - Q3 2024 The Global Operating Environment for Bu...APCO
The Radar reflects input from APCO’s teams located around the world. It distils a host of interconnected events and trends into insights to inform operational and strategic decisions. Issues covered in this edition include:
Zodiac Signs and Food Preferences_ What Your Sign Says About Your Tastemy Pandit
Know what your zodiac sign says about your taste in food! Explore how the 12 zodiac signs influence your culinary preferences with insights from MyPandit. Dive into astrology and flavors!
How to Implement a Real Estate CRM SoftwareSalesTown
To implement a CRM for real estate, set clear goals, choose a CRM with key real estate features, and customize it to your needs. Migrate your data, train your team, and use automation to save time. Monitor performance, ensure data security, and use the CRM to enhance marketing. Regularly check its effectiveness to improve your business.
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Every industrial revolution has created a new set of categories and a new set of players.
Multiple new technologies have emerged, but Samsara and C3.ai are only two companies which have gone public so far.
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Navigating the world of forex trading can be challenging, especially for beginners. To help you make an informed decision, we have comprehensively compared the best forex brokers in India for 2024. This article, reviewed by Top Forex Brokers Review, will cover featured award winners, the best forex brokers, featured offers, the best copy trading platforms, the best forex brokers for beginners, the best MetaTrader brokers, and recently updated reviews. We will focus on FP Markets, Black Bull, EightCap, IC Markets, and Octa.
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Discover the top mailing list providers in the USA, offering targeted lists, segmentation, and analytics to optimize your marketing campaigns and drive engagement.
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The 10 Most Influential Leaders Guiding Corporate Evolution, 2024.pdfthesiliconleaders
In the recent edition, The 10 Most Influential Leaders Guiding Corporate Evolution, 2024, The Silicon Leaders magazine gladly features Dejan Štancer, President of the Global Chamber of Business Leaders (GCBL), along with other leaders.
[To download this presentation, visit:
https://www.oeconsulting.com.sg/training-presentations]
This presentation is a curated compilation of PowerPoint diagrams and templates designed to illustrate 20 different digital transformation frameworks and models. These frameworks are based on recent industry trends and best practices, ensuring that the content remains relevant and up-to-date.
Key highlights include Microsoft's Digital Transformation Framework, which focuses on driving innovation and efficiency, and McKinsey's Ten Guiding Principles, which provide strategic insights for successful digital transformation. Additionally, Forrester's framework emphasizes enhancing customer experiences and modernizing IT infrastructure, while IDC's MaturityScape helps assess and develop organizational digital maturity. MIT's framework explores cutting-edge strategies for achieving digital success.
These materials are perfect for enhancing your business or classroom presentations, offering visual aids to supplement your insights. Please note that while comprehensive, these slides are intended as supplementary resources and may not be complete for standalone instructional purposes.
Frameworks/Models included:
Microsoft’s Digital Transformation Framework
McKinsey’s Ten Guiding Principles of Digital Transformation
Forrester’s Digital Transformation Framework
IDC’s Digital Transformation MaturityScape
MIT’s Digital Transformation Framework
Gartner’s Digital Transformation Framework
Accenture’s Digital Strategy & Enterprise Frameworks
Deloitte’s Digital Industrial Transformation Framework
Capgemini’s Digital Transformation Framework
PwC’s Digital Transformation Framework
Cisco’s Digital Transformation Framework
Cognizant’s Digital Transformation Framework
DXC Technology’s Digital Transformation Framework
The BCG Strategy Palette
McKinsey’s Digital Transformation Framework
Digital Transformation Compass
Four Levels of Digital Maturity
Design Thinking Framework
Business Model Canvas
Customer Journey Map
Event Report - SAP Sapphire 2024 Orlando - lots of innovation and old challengesHolger Mueller
Holger Mueller of Constellation Research shares his key takeaways from SAP's Sapphire confernece, held in Orlando, June 3rd till 5th 2024, in the Orange Convention Center.
Event Report - SAP Sapphire 2024 Orlando - lots of innovation and old challenges
Brief cwdm dwdm
1. Hybrid DWDM/CWDM Optical Networks
Cost-effective capacity growth and investment protection with WaveReady hybrid systems.
WaveReady™ Hybrid CWDM-DWDM Optical Networks
JDS Uniphase WaveReady 3000 series optical modules offer a simple, plug-and-play option for creating
hybrid systems of DWDM channels interleaved with existing CWDM channel plans. Support for hybrid
configurations is a key value of the WaveReady product family.
CWDM is an excellent, cost-effective, first step solution for scaling metro networks. Low cost WaveReady
CWDM transport can support up to eight channels at 2.5 Gb/s. This is sufficient for many networks in the
metro space.
If capacity needs grow beyond eight channels, WaveReady products can be used to merge DWDM and
CWDM traffic seamlessly at the optical layer. This allows carriers to add many channels to networks
originally designed for the more limited CWDM capacity and reach. Hybrid networks deliver true pay-as-
you-grow capacity growth and investment protection.
For carriers, the major advantages of hybrid CWDM/DWDM are:
• Reduced cost: CWDM has a significant cost advantage over DWDM due to the lower cost of
lasers and the filters used in CWDM modules. Coarse channel spacing allows more tolerance for
channel deviations or wavelength deviations. Therefore, CWDM transmitters and filters are
easier, and cheaper, to manufacture. This cost saving becomes quite significant for large
deployments.
• Pay-as-you-grow: Adding new channels one at a time allows for on-demand service introduction
with minimal initial investment, a critical feature in times of reduced OPEX and CAPEX spending
• Investment protection: Although 8 channels may be enough in an initial deployment, it’s important
to have an upgrade path to avoid a forklift upgrade to DWDM when growth in demand finally
requires significant new capacity. Given the unique WaveReady upgrade capability, carriers no
longer have to choose between CWDM and DWDM—both options can be deployed
simultaneously or as part of a planned future, or incremental, upgrade. WaveReady 3000 series
CWDM/DWDM modules can be used in either the WaveReady 3500, usually in central offices, or
in the WaveReady 3100, usually on customer premises. Current capital investment can always
be used in the upgraded network.
2. Hybrid DWDM/CWDM Optical Networks | 2
Theory of CWDM/DWDM Hybridization
The CWDM frequency grid consists of 16 channels spaced at 20 nm intervals. The eight most commonly
used channels are: 1470 nm, 1490 nm, 1510 nm, 1530 nm, 1550 nm 1570 nm, 1590 nm and 1610 nm.
Within the pass band of these channels there exists the capacity to add 25 100 GHz spaced channels
under the 1530 nm envelope and 25 more under the 1550 nm envelope if the filter is properly designed.
For example, in the 1530 nm window there is a total theoretical pass band of ±10 nm on either side of the
nominal center frequency. Therefore, one can, theoretically, concatenate multiple WDM filters to add
another 25 channels within the pass-band. Looking at the ITU grid in Table 1 one can easily pick out
these channels.
Table 1: Theoretical Availability of Channels in the 1530 nm and 1550 nm Pass-band
1521.02 1540.56
1521.79 1541.35
1522.56 1542.14
1523.34 1542.94
1524.11 1543.73
1524.89 1544.53
1525.66 1545.32
1526.44 1546.12
1527.22 1546.92
1527.99 1547.72
1530 nm ± 20 nm
1550 nm ± 20 nm
1528.77 1548.51
1529.55 1549.32
1530.33 1550.12
1531.12 1550.92
1531.90 1551.72
1532.68 1552.52
1533.47 1553.33
1534.25 1554.13
1535.04 1554.94
1535.82 1555.75
1536.61 1556.55
1537.40 1557.36
1538.19 1558.17
1538.98 1558.98
1539.77 1559.79
3. Hybrid DWDM/CWDM Optical Networks | 3
Practical Application of CWDM/DWDM Hybridization
In practice, adding another 25 channels in the pass-band of both the 1530 nm and 1550 nm CWDM
channels is not achievable because the optical filters are not perfect square functions. The actual filter
profile affects the number of channels which can be accommodated. However, actual JDS Uniphase
DWDM filter technology does allow 38 additional channels to clear the CWDM archway as shown in
Table 2.
Table 2: Actual Availability of Channels in the 1530 nm and 1550 nm Pass-band
1521.02 1540.56
1521.79 1541.35
1522.56 1542.14
1523.34 1542.94
1524.11 1543.73
1524.89 1544.53
1525.66 1545.32
1526.44 1546.12
1527.22 1546.92
1527.99 1547.72
1550 nm ±20 nm
1530 nm ±20 nm
1528.77 1548.51
1529.55 1549.32
1530.33 1550.12
1531.12 1550.92
1531.90 1551.72
1532.68 1552.52
1533.47 1553.33
1534.25 1554.13
1535.04 1554.94
1535.82 1555.75
1536.61 1556.55
1537.40 1557.36
1538.19 1558.17
1538.98 1558.98
1539.77 1559.79
4. Hybrid DWDM/CWDM Optical Networks | 4
The system impact to adding these channels is equivalent to adding the component in line with existing
CWDM equipment. The insertion losses add linearly.
Figure 1 shows the infrastructure in a fully populated CWDM system.
MUX DeMUX
TX1 1470 RX1
TX2 1490 RX2
CWDM 8
CWDM 8
TX3 1510 RX3
TX4 1530 RX4
TX5 1550 RX5
TX6 1570 RX6
TX7 1590 RX7
TX8 1610 RX8
To add more channels to MUX side of this network, one would plug in a DWDM MUX with the
appropriate channels to fall under the pass-band of the existing CWDM filters. Figure 2 shows the
infrastructure of Figure 1 upgraded with 38 additional 100 GHz spaced channels.
Figure 2: Forty Four Channel Hybrid CWDM/DWDM System
MUX DeMUX
D TX1 1470 RX1 D
19
W W
DWDM TX2 1490 RX2
D D
CWDM 8
CWDM 8
TXs
M TX3 1510 RX3 M
1530
1550
TX6 1570 RX6
D D
19
W TX7 1590 RX7 W
DWDM
D D
TXs TX8 1610 RX8
M M
The number of channels present in Figure 2 is 38 DWDM channels plus the existing six CWDM channels
for a total of 44. The equipment required to go from the first architecture to the second are 2 DWDM
multiplexers and demultiplexers, as well as the additional transmitter and receiver pairs required. The
additional loss incurred by the upgrade is equal to the additional loss of the DWDM elements and the
additional connection points.
Several network types could take advantage of the architecture shown in Figure 2. For example one
could increase the capacity of an existing ring, by deploying all of the elements above at each node. Or,
one could allow DWDM traffic to overlay an existing CWDM network at a pre-determined crossover point.
5. Hybrid DWDM/CWDM Optical Networks | 5
Figure 3: Hybrid CWDM/DWDM Rings
DWDM Metro
CWDM Core RING
RING
The two networks would be configured in such a way to allow the DWDM traffic to travel across the
CWDM ring. All of the nodes where the DWDM traffic would travel on the CWDM ring would require the
DWDM multiplexer and demultiplexer pairs.
Another application for the DWDM channels is for long reach links in CWDM rings. If a certain span
exists in a CWDM network with a large distance between regenerators, say 100 km, DWDM channels
can be used in place of CWDM ones to overcome this distance.
CWDM NODE MIXED NODE
1470 RX
1490 RX
1510 RX
1530 RX
1550 RX
1570 RX
1590 RX
1610 RX
1470 RX
1490 RX
DWDM NODE 1510 RX
1570 RX
1590 RX
1610 RX
6. Hybrid DWDM/CWDM Optical Networks | 6
System Impact
The added components on the CWDM ring will decrease the link budget for each span by the amount of
insertion loss for each new component. The use of high isolation optical filters for the DWDM channels
will ensure that cross talk is minimized between closely spaced channels. In the case of very high
channel counts, non-linear effects should be taken into consideration. These include self phase
modulation and four wave mixing.
The lasers used in DWDM networks have a much narrower line width than lasers used in CWDM. As a
result the DWDM signals will typically have farther reach, and will undergo less pulse broadening due to
chromatic dispersion. However they also lie within the operating range of erbium doped fiber amplifiers.
This means that DWDM signals can go un-regenerated for large distances. This limit is reached at the
transmitter’s dispersion limit.
Receiver technology is independent of the optical signal present. The same receiver can be used to
resolve a CWDM signal as well as a DWDM signal. The InGaAs material used to convert the optical
signal into an electrical one has an operating range that includes both wavelength schemes. In the case
of a 3R receiver, the receiver should be chosen such that it is compatible with the transmitter’s data rate.
Glossary
DCF – Dispersion Compensating Fiber
DWDM – Dense Wavelength Division Multiplexing
EDFA – Erbium-Doped Fiber Amplifier
IEEE – Institute of Electrical and Electronics Engineers, Inc.
ITU-T – International Telecommunication Union – Telecommunication Standardization Section
SONET – Synchronous Optical Networks
Featured Products
Description
WaveReady 3000 Bi-directional 1310 nm to CWDM transponder (WSH 500)
WaveReady 3000 Bi-directional 850 nm to CWDM transponder (WSH 510)
WaveReady 3000 Bi-directional 1310 nm to DWDM transponder (WSH 413)
WaveReady 3000 Bi-directional 850 nm to DWDM transponder (WSH 400)
WaveReady 3000 Communications Module 100
WaveReady 3500 Shelf Mounting Solution (DenseMount Shelf)
Additional Information
For more information on WaveReady™ or other products and their availability, please contact your local
JDS Uniphase account manager or JDS Uniphase directly at 1-800-498-JDSU (5378) in North America
and +800-5378-JDSU worldwide or via e-mail at sales@jdsu.com.
WaveReady and JDS Uniphase are registered trademarks of JDS Uniphase Corporation.