| 摘要 |
A burst signal receiver that performs efficient signal conversion when burst optical signals received from various terminals differ in intensity. In a PON system, a photodiode is used to receive burst signals from subscriber terminals (ONUs). An OLT system informs a light-sensitive circuit of subscriber terminals (ONUs) that transmit burst signals, the order in which the burst signals are transmitted, and the timing for burst signal reception. A controller for the light-sensitive circuit uses a gain control table to obtain a gain and reference voltage for each subscriber terminal (ONU). In relation to the electrical current output from the photodiode, the controller converts the burst signals to digital signals using a gain and reference voltage with the reception timing indicated by the OLT system.
|
