October 2007
Intermediate to advanced
368 pages
10h 55m
English
Content preview from Passive Optical Networks
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APON system. This wavelength plan has been adopted by most PON manufac-
tures to transport different services on the same physical infrastructure.
Figure 2.16 illustrates the wavelength allocation plan specified in ITU-T
G.983.3. This ITU recommendation specifies the C-band as enhanced band for
carrying either analog TV signals or additional digital services such as SONET/
SDH links. Two more bands, (1) 1360–1480 nm and (2) 1565 nm and beyond,
are reserved for future studies. Additional wavelength multiplexers are required
at ONU and OLT in order to make use of the enhancement bands specified in
G.983.3. These additional wavelength multiplexers add ...
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