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High Customer Density PON With Passive Amplification Through Distributed Pump for {>} 1:1000 Tree Split

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7 Author(s)
Schrenk, B. ; Univ. Politec. de Catalunya BarcelonaTech, Barcelona, Spain ; Bauwelinck, J. ; Bo, F.B. ; Lazaro, Jose A.
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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.

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Lightwave Technology, Journal of  (Volume:29 ,  Issue: 13 )