| 摘要 |
<p>A Passive Optical Network (PON) system, an Optical Line Terminal (OLT) and an optical transmission method applying the PON system. Said PON system includes multiple Passive Distribution Networks (ODNs), multiple ONUs connected with each ODN, first WDMs which are in one-to-one correspondence connection with multiple ODNs, an uplink and a downlink optical processing modules both connected with each first WDM and multiple OLTs of multiple different PONs all respectively connected with the uplink and the downlink optical processing modules; the uplink optical processing module is configured as: first coupling uplink light from multiple first WDMs, then splitting it and outputting it to multiple OLTs; multiple OLTs are configured as: receiving uplink light inputted by the uplink optical processing module and sending downlink light to the downlink optical processing module; the downlink optical processing module is configured as: amplifying, and then combining the downlink light sent by multiple OLTs, splitting the combined downlink light into multiple channels, and respectively outputting to multiple first WDMs. The technical solution of the present invention improves the efficiency of ports of the PON.</p> |
