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Dual Waveband Remote Node for Extended Reach Full-Duplex 10 Gb/s Hybrid PONs

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6 Author(s)
Schrenk, B. ; Dept. of Signal Theor. & Commun., Polytech. Univ. of Catalonia, Barcelona, Spain ; Chatzi, S. ; Bonada, F. ; Lazaro, J.A.
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A remote node design for C + L band amplification is characterized and shown to cover the advanced optical power budget for a 55 km reach, 1:32 split hybrid Passive Optical Network (PON) with symmetrical full-duplex 10 Gb/s transmission. Different types of Erbium-doped fiber, designed for the C- and L-band are evaluated in a bidirectional amplification stage at the remote nodes of a ring + tree network, providing 5-10 dB of power margin for the reception of down- and upstream, despite degradation of the Optical Signal-to-Noise Ratio (OSNR). The evolution of signal power and the noise accumulation along the light path is discussed for both wavebands.

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Lightwave Technology, Journal of  (Volume:28 ,  Issue: 10 )