Method and arrangement for measuring a signal power
AssigneeADVA Optical Networking SE
InventorsMichael Eiselt, Toni Wald
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Abstract
The invention relates to a method and an arrangement for measuring power for an optical user signal transmitted via an optical fiber by converting the transmitted optical user signal into a pulsed optical measurement signal, the pulse repetition rate of which is dependent on the power of the transmitted optical user signal, and evaluating the pulse repetition rate of the converted optical measurement signal in order to ascertain the power of the optical user signal transmitted via the optical fiber.
Claims11
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.
A measurement arrangement for measuring a power for an optical user signal transmitted via an optical fiber, comprising:
- (a) a signal conversion device for converting the optical user signal into a pulsed optical measurement signal, the pulse repetition rate of which is dependent on the power of the optical user signal;
- (b) a detection device which evaluates the pulse repetition rate of the converted pulsed optical measurement signal in order to ascertain the power of the optical user signal transmitted via the optical fiber;
- and
- (c) a power splitter which at least partially decouples the optical user signal transmitted on the optical fiber to the signal conversion device;
- 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 the signal conversion device.
An arrangement for transmitting an optical user signal via an optical fiber, said user signal being decoupled at at least one of the two ends of the optical fiber by a power splitter, to a signal conversion device which converts the decoupled optical user signal into a pulsed optical measurement signal, the pulse repetition rate of which is dependent on the power of the transmitted optical user signal, 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 the signal conversion device.
Dependencies are inferred from the claim text.