| 摘要 |
<p>Disclosed is an optical power detection apparatus for a passive optical network, comprising: a receiving module, for receiving an optical signal sent by an optical network unit; a detection module comprising an RSSI detecting branch for a current mirror and an RSSI detecting branch for a logarithmic amplifier, the RSSI detecting branch of the current mirror and the RSSI detecting branch of the logarithmic amplifier being respectively coupled to the receiving module, for RSSI measurement of the optical signal received by the receiving module according to a received RSSI function triggering signal; a controller coupled to the detection module, for outputting the RSSI function triggering signal to the detection module, and for receiving selectively the RSSI measurement result outputted by the RSSI detecting branch corresponding to the optical intensity of the optical signal sent by the optical network unit, according to a selection control signal provided by a selection control signal generation module, and for calculating the optical power information of the optical signal according to the RSSI measurement result. Also disclosed is a method for the optical power detection of a passive optical network, and a passive optical network system.</p> |
