Abstract
A network architecture for tree-like passive optical networks
(PONs) with high splitting ratios is proposed and experimentally
demonstrated. Splits >1000 are shown to be feasible thanks to
a noise-powered amplifier that is built-in inside the power
splitter. The proposed noise pumping technique recycles the natural
amplified spontaneous emission (ASE) of a semiconductor optical
amplifier at the customer premises, avoiding the use of an
electrical power supply in the fiber plant. The impact of the
location of this noise-powered extender box inside the signal
distribution element of the tree is analyzed in terms of obtained
signal gain, ASE accumulation among multiple extender boxes, and
transmission performance. Finally, full-duplex transmission at 10
Gb/s with burst-mode upstream is demonstrated in a particular
scenario with a split of 1:1000 and a loss budget of 39.5 dB,
revealing that power margins of >3 dB can be
provided.
© 2011 IEEE
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