40 Gbps PON with 23 dB power budget using 10 Gbps optics and DMT

We investigate a symmetrical 40 Gbps PON using 10-Gbps class optical components. We demonstrate transmission at 40 Gbps, with 23-dB power budget and 4.6·10<sup>−3</sup> BER after 10-km SSMF transmission using discrete multitone IM-DD.

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