DISPERSION MEASUREMENT SYSTEM BASED ON A SELF-SEEDING LASER OSCILLATION OF MULTI-MODE LIGHT SOURCE AND METHOD THEREOF

摘要

The present invention relates to optical fibers and optical element chromatic dispersion measuring apparatus and method using a self-oscillating feedback laser of multi-mode light source.; The present invention, an output generates a pulse of a plurality of wavelengths on the basis of the modulation signal, while increased by a predetermined frequency applied from the modulation signal generator, the signal generator for outputting, and fed back through a postmenopausal formed contains a measured element modulated with the wavelength detector and the signal generator so as to output only the light pulse of particular wavelength detected by the wavelength of the magnetic feedback laser oscillation multi-mode light source, a particular optical pulse output from the multimode light source by the light pulse of the plurality of wavelengths characterized in that the control signal generator to output a frequency control signal, and a controller for calculating the chromatic dispersion of the modulation frequency and the measuring element P as the wavelength based on the input wavelength from the detector is applied to the multi-mode light source do. According to the configuration described above, by a simple configuration it has the advantage of measuring optical fiber and the optical element dispersion.