研究目的

To address how TDM PON as a technology can continue to scale and satisfy future bandwidth demands and, if so, how can they do so cost-effectively.

研究成果

TDM PON technology has been widely deployed since the early 2000s and has evolved with ease to support the increasing bandwidth demands of FTTH. The newest generation of TDM PONs support 10 Gb/s. Commercial success has resulted from leveraging transport ecosystems of mature high-volume components. Future generations of TDM PON will leverage the data center ecosystem, and standardization activity on 25 and 50 Gb/s PONs is underway. These latter will provide ample bandwidth to support applications beyond FTTH; of particular interest is 5G transport. 25G PON will appear next and has the potential to provide 2.5x more bandwidth than 10G PON at incremental cost. 50G TDM PON, requiring optical amplification and some complexity, will require more time. 100G TDM PON likely requires coherent detection, and realizing that at low cost is an interesting topic of research.

研究不足

The paper does not explicitly mention specific limitations of the research or experiments conducted.