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Chromatic dispersion distribution measurement apparatus and method for the same

Image Number 4 for United States Patent #6580499.

A chromatic dispersion distribution measurement apparatus, comprises: a power calculation unit for calculating a power value of an input light to be input into an optical device to be measured, in order to calculate a chromatic dispersion distribution in the optical device to be measured, in accordance with an output light power of an output light from the optical device to be measured as a function of a transmission distance along the optical device to be measured; and a control unit for controlling an input light power of the input light to the optical device to be measured in accordance with the power value of the input light which is calculated by the power calculation unit.

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