Self-Pumped Dense (40×32 split) PON with Extended 30 dB Loss Budget and ONUs Comprising a Single 10 Gbps RSOA

Full-duplex 10Gb/s transmission is demonstrated on a single wavelength with RSOA-based ONUs, whose amplified spontaneous emission establishes a pump for remote amplification to overcome the loss budget, avoiding any pump delivery from the central office. Introduction Passive Optical Networks (PON) with Optical Network Units (ONU) based on Reflective Semiconductor Optical Amplifiers (RSOA) have recently entered the commercial Fibre-to-the1 Home segment . Typically, benefit is taken from the RSOA in two ways; while it acts as high gain and low-cost amplifier to overcome intermediate loss budgets in WDM-PONs with wavelength 2 reuse , its ability as intensity modulator has 3 been shown for rates of 10 Gb/s . Herein, we will address a third benefit: the generation of a pump for remote amplification inside the PON. The migration to hybrid PONs with extended customers density served by a single Optical Line Terminal (OLT) requires for additional means of optical amplification due to the high 4 splitting ratio in the drop segments of the PON . This kind of amplification, typically performed remotely to retain the passiveness of the fibre plant, suffers from the optical losses that the pump experiences along the PON. The required strong pumps limit therefore the applicability of such schemes for PONs with high loss budgets. In this work, we present full-duplex data transmission at 10 Gb/s in a dense hybrid PON (40 wavelengths, splitting ratio 1:32) with a loss budget of 30 dB. No pump is transmitted from the OLT for amplification purposes, and neither additional light sources nor active components are added to the simple RSOA-based ONUs. LD MZM EDFAB A B