Abstract
The orthogonal frequency division multiple access (OFDMA)-based passive optical network (PON) is a potential candidate to meet the flexibility requirements for next-generation optical access networks. We propose an OFDMA-based PON with a transmission employing intensity modulation/direct detection in the downstream and a remodulation of a remotely seeded carrier provided by the optical line terminal with coherent detection in the upstream, which enables cost-effective colorless optical network units (ONUs). Furthermore, an OFDMA-PON field trial using the proposed scheme over 37.5 km feeder fiber is demonstrated. A power budget supporting 32 ONUs with dynamic bandwidth allocation and trellis coded modulation (TCM) is reported.
Original language | English |
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Article number | 7023485 |
Journal | Journal of Optical Communications and Networking |
Volume | 7 |
Issue number | 1 |
DOIs | |
State | Published - 1 Jan 2015 |
Keywords
- Access
- Field trial
- OFDM
- PON