| 摘要 |
<p>Embodiments of the present invention disclose an apparatus for detecting an optical power of a passive optical network, where the apparatus includes: a receiving module configured to receive an optical signal sent by an optical network unit; a detecting module which includes a current mirror RSSI detection branch and a logarithmic amplifier RSSI detection branch, where the current mirror RSSI detection branch and the logarithmic amplifier RSSI detection branch are respectively coupled to the receiving module, and is configured to measure, according to a received RSSI function trigger signal, an RSSI of an optical signal received by the receiving module; and a controller which is coupled to the detecting module and configured to output the RSSI function trigger signal to the detecting module, select and receive, according to a selection control signal provided by a selection control signal generating module, an RSSI measurement result output by an RSSI detection branch corresponding to optical strength of the optical signal sent by the optical network unit, and calculate optical power information of the optical signal according to the RSSI measurement result. The embodiments of the present invention further disclose a method for detecting an optical power of a passive optical network and a passive optical network system.</p> |
