Abstract
Symmetrical full-duplex transmission in a Passive Optical
Network (PON) is demonstrated over a 100 km dual-fiber ring with
1:16 split trees. The customer premises equipment is based on a
Reflective Semiconductor Optical Amplifier (RSOA), which reuses
the wavelength of the intensity modulated downstream signal for
upstream data transmission. A commercial RSOA was used together
with optical offset filtering at the upstream receiver to
operate at data rates of 5 and 10 Gb/s. Margins of ${>}8$
dB are left at a data rate of 5 Gb/s, proving that the utilized
downstream suppression scheme and therefore the intensity
modulation format for both, down- and upstream, is suitable for
its application in long-reach hybrid access networks. The signal
degradation along the PON and the transmitted pump that features
means of remote amplification in its conjunction points between
the metro ring and the local trees are discussed and further
possibilities for an improvement of the transmission performance
are proposed.
© 2010 IEEE
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