YI Li-lin, LI Xiang. Investigation of Key Technologies in High-Speed Optical Access Network(Invited)[J]. 2017,(6):21-27. DOI: 10.13756/j.gtxyj.2017.06.003.
Traditional optical access network cannot satisfy the fast capacity increasing requirements in current Internet.In this paper
considering the development of Passive Optical Network(PON)technologies in Optical Access Networks(OANs)
we introduce three mainstream technologies to upgrade the capacity in OANs to achieve single-wavelength 25 Gbit/s transmission
single-wavelength 50 Gbit/s transmission and coherent optical detection.Both the advantages and disadvantages of the three technologies are analyzed.We also briefly introduce our work in these three areas.