The simultaneous transmission of four orthogonal frequencydivision
multiplexing (OFDM)-based signals used to provide quintuple-play
services along wavelength division multiplexing (WDM) long-reach passive
optical networks (LR-PONs) is demonstrated experimentally. Particularly,
the transmission performance of custom signal bearing Gigabit Ethernet
data, Worldwide Interoperability for Microwave Access, Long Term
Evolution and Ultra Wideband (sub-bands 2 and 3) signals is evaluated for
different LR-PONs reaches, considering single-wavelength andWDMtransmission,
and using a centralized impairment compensation technique at the
central office that is transparent to the services provided.
It is shown that error vector magnitude-compliant levels are obtained for
all the OFDM-based signals in WDM LR-PONs reaching 100 km and
that negligible inter-channel crosstalk is obtained for a channel spacing of
100 GHz regardless the OFDM-based signal considered. The successful
multi-format OFDM transmission along the 100 km-long WDM LR-PON
is achieved in the absence of optical dispersion compensation or single
sideband modulation, and it is enabled by the performance improvement
provided by the centralized impairment compensation realized.