Abstract: In an optical data network, such as a passive optical network (PON), an optical line terminator (OLT) measures the strengths of one or more signals received from the optical network units (ONUs) and generates a message containing an indication responsive to the measured signal strength. The OLT transmits the message to the ONUs. The ONUs generate packets having preambles of a length responsive to the indication contained in the message.

Abstract: A system, method, and computer readable medium for burst mode optical receiver that enables an optical receiver to receive signals from a plurality of optical network units at different optical power levels comprising, collecting Received Signal Strength Indication information from a previous data stream of an optical network unit, and adjusting an optical receiver to optimize reception of subsequent incoming data streams of the optical network unit based upon Received Signal Strength Indication information received from the previous data stream.

Abstract: An optical line termination comprises a DC current load, power measurement circuitry, upstream data path circuitry and current mirror circuitry. The current mirror circuitry is connected between the DC current load, the power measurement circuitry and the upstream data path circuitry. The DC current load is connected in parallel with a photodiode of the upstream data path circuitry. The DC current load exhibits a substantially fixed load. The current mirror provides a copy of an aggregate current to the power measurement circuitry. The aggregate current is a summation of a current draw by the DC current load and a current draw by the photodiode. The power measurement circuitry is configured for outputting a power level dependent upon the aggregate current. Accordingly, the optical line termination provides for a non-intrusive solution for measuring optical input power and, thereby, enables the measured optical power to be monitored.

Abstract: A multi-port optical block system comprises a multi-port block assembly and an optical-to-electrical conversion apparatus. The multi-port optical block assembly is configured for having a connector of the optical-to-electrical converter apparatus attached thereto. The connector of the optical-to-electrical conversion apparatus is configured for being selectively attached to and detached from the multi-port optical block. The optical-to-electrical conversion apparatus includes a photo diode and signal amplification electronics connected to the photo diode. The photo diode is mounted on the connector of the optical-to-electrical conversion apparatus. The photo diode and said signal amplification electronics are jointly configured for providing optimized signal performance for a prescribed bandwidth specification.