Patent ID: 6707547
Filing Date: 2004-03-16
Classification: H04B,H04J

Abstract:
A method for analyzing wavelength-division multiplexed signal light, comprising the steps of:storing reference wavelengths (&lgr;Cm) in a memory as preliminary specified by ITU-T standards; analyzing a wavelength (&lgr;Dn) of each channel from input data for optical spectrum waveform; rounding the analyzed wavelength (&lgr;Dn) of each channel to a value of a nearest reference wavelength (&lgr;Cm) to be used as the reference wavelength (&lgr;An) of each channel; storing the analyzed reference wavelength (&lgr;An) of each channel; and analyzing the central wavelength (&lgr;Bn) of each channel from the input data for optical spectrum waveform and the reference wavelength (&lgr;An) of each channel.