Dispersion measurement of optical fibres during operation
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United States of America Patent
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Jul 30, 2013
Grant Date -
Jun 30, 2011
app pub date -
Mar 4, 2009
filing date -
Mar 6, 2008
priority date (Note) -
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Abstract
The invention at hand concerns a method and a system for transmitting data in an optical transmission system. A measuring signal is generated having a wavelength which differs from the wavelengths of a data signal that includes the data to be transmitted. The measuring signal is coupled in the optical transmission system, reflected after passing through the transmission path and decoupled again. The coupled measuring signal is compared with the decoupled reflected measuring signal. By taking into account the comparison results, a compensation of the change of the data signal resulting from the dispersion in the fiber is performed in such a way that the data included in the data signal can be used.
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