200 Gb/s/λ Bidirectional Coherent PON Solutions Demonstrated Over Field Installed Fiber

作者：Istvan Bence Kovacs, Md. Saifuddin Faruk, A. Wonfor, Seb J. Savory · 发表于：IEEE Photonics Technology Letters · 年份：2024 · DOI：10.1109/lpt.2024.3434640 · 被引用次数：8 · 研究领域：Optical Network Technologies、Advanced Photonic Communication Systems、Photonic and Optical Devices

We demonstrate 200 Gb/s bidirectional coherent PON solutions using a simplified optical network unit (ONU) over 19 km of field-installed fiber. The ONU receiver is a single-polarization heterodyne detector with either a balanced or a single-ended photodetector and the transmitter is based on dual-polarization electro-absorption modulated laser (EML). The optical line terminal (OLT) uses standard dual-polarization coherent transceivers. The downstream solutions achieve 37 dB and 30.5 dB power budget for the receiver with balanced and single-ended photodiodes, respectively. For the upstream, two line rates have been investigated: 200 Gb/s/$\lambda $for symmetrical transmission and 100 Gb/s/$\lambda $for asymmetric transmission achieving a power budget of 30.1 dB and 40.9 dB respectively.