Patent ID: 8284391

Claim:
A method for measuring a power for an optical user signal transmitted via an optical fiber, having the following steps: (a) the transmitted optical user signal is converted into a pulsed optical measurement signal, the pulsed repetition rate of which is dependent on the power of the transmitted optical user signal; (b) the pulse repetition rate of the converted optical measurement signal is evaluated in order to ascertain the power of the optical user signal transmitted via the optical fiber; wherein the transmitted optical user signal is transmitted via the optical fiber between a network operator transceiver of a network operator and a user transceiver of a user; wherein the transmitted optical user signal is at least partially decoupled from the optical fiber at the user transceiver end by a power splitter for the purpose of measuring power, and wherein a coupling ratio of the power splitter is designed such that sufficient signal power for the determination of the power level is supplied to a signal conversion device.