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DWDM

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ALSO CALLED: Wavelength-division Multiplexing, WDM, Dense Wave Division Multiplexing, Wave Division Multiplexing, Dense Wavelength Division Multiplexing, D W D M
DEFINITION: Dense wavelength division multiplexing (DWDM) is a technology that puts data from different sources together on an optical fiber, with each signal carried at the same time on its own separate light wavelength. Using DWDM, up to 80 (and theoretically more) separate wavelengths or channels of data can be multiplexed into a lightstream transmitted on a single optical fiber. Each channel carries a time  … 
Definition continues below.
DWDMWhite Papers (View All Report Types)
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Choosing the Right Metropolitan Ring for Your Business
sponsored by AT&T Corp
WHITE PAPER: Businesses are evolving and looking for more effective and efficient methods of handling bandwidth, performance and end-point needs. In addition, they are trying to anticipate future needs to help make good networking decisions.
Posted: 01 Mar 2011 | Published: 01 Mar 2011

AT&T Corp

Choosing the Right Metropolitan Ring for Your Business
sponsored by AT&T Corp
WHITE PAPER: Learn how to consolidate your network access facilities over multiple company locations and increase security with a metropolitan ring solution. Read this white paper and start reaping the benefits of this new solution today.
Posted: 13 Feb 2007 | Published: 01 Feb 2007

AT&T Corp
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DWDM DEFINITION (continued): …  division multiplexed (TDM) signal. In a system with each channel carrying 2.5 Gbps (billion bits per second), up to 200 billion bits can be delivered a second by the optical fiber. DWDM is also sometimes called wave division multiplexing (WDM). Since each channel is demultiplexed at the end of the transmission back into the original source, different data formats being transmitted at different data rates can be transmitted together. Specifically, Internet (IP) data, Synchronous Optical Network data (SONET), and asynchronous transfer mode (ATM) data can all be travelling at the same time … 
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