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DWDM and Core Networks - Assessment Markets and Technologies
PracTel Inc., Nov 2005
This report is about Dense Wavelength Division Multiplexers (DWDMs) and their role in core transmission. It also analyzes core networks, which are based on the DWDM utilization.
The report researches multiple areas of DWDM technologies and markets and analyzes the current situation in core fiber optics transmission. 2004-2005 are years that are showing the first signs of life in this arena after almost four years of decline.
DWDMs extend multiplexing principles into the domain of wavelengths, and it can be compared with frequency multiplexing in optical spectrum. The idea is to use fiber not to transmit signals just on a single wavelength, but to convey through the same fiber multiple wavelengths to better utilize almost unlimited fiber optics capacity. In theory, such multiplexing can increase speed of transmission in many times, but practical limitations such as sharpness of filters, fiber properties, power limitations made, at the present time, limit the maximum number of multiplexed wavelengths to not more than one thousand with each wavelength carried 2.5 Gb/s – 10 Gb/s signals (typical numbers for the core and metro environment).
Our report addresses a multitude of issues associated with DWDM and its applications in the core environment, including technical implementations and marketing perception. Particular, this report intends to answer at least the following questions:
- What is the outlook for the market?
- Who are major market players?
- What standardization bodies are involved/ how advanced are they in their work?
- What technologies support DWDM?
- What architecture types are being proposed?
- What products are available today?
The report consists of the two major parts and it addresses the following major items:
Technology
- Standardization process
- Trends
- Requirements
- Specifics
- Roadblocks
- Competitors
- Architecture
- Applications
Market
- Trends
- Specifics
- Modeling
- Forecast
- Vendors and their portfolio
- Service Providers
The significance of this report is difficult to overestimate. The document analyzes a complex of issues associated with the development of DWDM, and we are evaluating the current trends and problems with telecommunications technology to support respective services. We show technological trends and developments of the market and we stress the importance to implement of DWDM-based infrastructures.
Research Methodology
Considerable research was done using the Internet. Information from various Web sites was studied and analyzed. Evaluation of publicly available marketing and technical publications was conducted. Telephone conversations and interviews were held with industry analysts, technical experts and executives. In addition to these interviews and primary research, secondary sources were used to develop a more complete mosaic of the market landscape, including industry and trade publications, conferences and seminars.
The overriding objective throughout the work has been to provide valid and relevant information. This has led to a continual review and update of the information content.
Target Audience
This report is important to a wide population of researches, technical and sales staff involved in the developing of the DWDM-based networks and products. It is recommended for both service providers and vendors that are working with related technologies. The report also helps to understand issues associated with relationship between DWDM and other technologies.
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