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AssigneeSiemens Aktiengesellschaft
InventorsJoerg-Peter Elbers, Christoph Glingener, Erich Gottwald, Christian Scheerer
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A method and device are provided for measuring the non-linear coefficient and/or the dispersion coefficient of an optical fiber in an optical data transmission path by four-wave mixing, wherein at least two pump signals of known intensity with at least two different input frequencies are injected into one end of an optical fiber to be measured, in order to obtain at least two signals with at least two new frequencies by four-wave mixing, with the intensity of the backscattered signals of the new frequencies being measured at the feed side and the non-linear coefficent and/or the dispersion coefficient being determined from the measured intensities.
Method for measuring the non-linear coefficient and/or the dispersion coefficient 2 of an optical fiber (8) in an optical data transmission path by four-wave mixing, characterized in that at least two pump signals (3, 4) of known intensity with at least two different input frequencies fi and fk are injected into one end of an optical fiber (8) to be measured, in order to obtain at least two signals with at least two new frequencies fn by four-wave mixing, with the intensity of the backscattered signals of the new frequency fn being measured at the feed side and the non-linear coefficient and/or the dispersion coefficient 2 being determined from this.
A device for measuring the optical fiber non-linearity and/or fiber dispersion in an optical data transmission path with at least one optical fiber (8), characterized in that the device contains at least:
Dependencies are inferred from the claim text.