Patent ID: 6643603
Filing Date: 2003-11-04
Classification: G01M

Abstract:
A chromatic dispersion distribution measurement apparatus, comprising:a plurality of light sources selected from the group consisting of two variable wavelength light sources and at least three fixed-wavelength light sources which emit lights having different wavelengths from one another; a chromatic dispersion distribution calculation unit for calculating a plurality of actual chromatic dispersion values in an optical device to be measured when a plurality of pairs of lights having different wavelengths from each other, which are emitted from the light sources, are inputted into the optical device to be measured; a chromatic dispersion interpolation unit for interpolating an expected chromatic dispersion value between the actual chromatic dispersion values calculated by the chromatic dispersion distribution calculation unit, in order to obtain a chromatic dispersion distribution at an optional wavelength and at an optional transmission distance along the optical device to be measured; a dispersion slope calculation unit for calculating a dispersion slope at the optional wavelength and at the optional transmission distance in accordance with the chromatic dispersion distribution; and a zero dispersion wavelength calculation unit for calculating a zero dispersion wavelength at the optional transmission distance in accordance with the chromatic dispersion distribution.