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 The Fiber Optic Association - Tech Topics: Wavelength Division Multiplexing (WDM)
Why Is WDM Used? With the exponential growth in communications, caused mainly by the wide acceptance of the Internet, many carriers are finding that their estimates of fiber needs have been highly underestimated.
Although most cables included many spare fibers when installed, this growth has used many of them and new capacity is needed.
Three methods exist for expanding capacity: 1) installing more cables, 2) increasing system bitrate to...
preview:
http://www.thefoa.org/tech/dwdm.htm
5/14/2009
Tags: dwdm
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