Application of optical carrier wave substitution technology in OFDM-TDM-PON access network

OFDM-TDM-PON access network is the pivot direction of optical access network development in future,in order to effectively reduce the optical beating noise interference in upstream links of OFDMTDM-PON access network,three application projects based on optical carrier wave substitution technology are put forward,and the performance of upstream links in three application projects is analyzed.The results of analysis demonstrate that three application projects can effectively reduce the optical beating noise interference in upstream links,and availably improve the access performance of upstream links.