Dense Wavelength Division Multiplexing (DWDM) and Fiber Optic Technology.

Dense Wavelength Division Multiplexing The increased demands on fiber optic networks toward the end of the twentieth century spurred a concern of fiber exhaust. The backbone communications companies such as AT&T, Sprint, and WorldCom, sought an economical alternative to installing new fiber which resulted in the emergence of a new transmission technology called Dense Wavelength Division Multiplexing (DWDM). The development of this new technology enabled companies to meet the macro capacity demands placed …

…limitation is dependant primarily on the stability of the light source and the integrity of the wavelength of the data. References Introduction to DWDM for Metropolitan Area Networks <http://www.cisco.com/univercd/cc/td/doc/product/mels/dwdm/index.htm> Intel accelerates dynamic bandwidth provisioning <http://www.dialelectronics.com.au/articles/08/0c00dc08.asp> Dense Wavelength Division Multiplexing (DWDM) Testing <http://www.iec.org/online/tutorials/dwdm_test/>