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 an apparatus and method for measuring color dispersion of optical fibers and optical devices using self-feedback laser oscillation of a multimode light source.;The present invention provides a signal generator for outputting a modulated signal in increments of a predetermined frequency, generating and outputting optical pulses having a plurality of wavelengths based on the modulated signal applied from the signal generator, and feedback through a closed path including an element to be measured. A multi-mode light source for self-feedback laser oscillation so as to output only a light pulse of a specific wavelength by the light pulses of the plurality of wavelengths, a wavelength detector for detecting a wavelength of a specific light pulse output from the multi-mode light source, and modulation with the signal generator And a controller for outputting a frequency control signal to control a signal generator and calculating color dispersion of the device under measurement based on a modulation frequency applied to the multi-mode light source and a wavelength input from the wavelength detector. do. According to the above configuration, there is an advantage that the color dispersion of the optical fiber and the optical element can be measured by a simple configuration.;Optical fiber, chromatic dispersion, chromatic dispersion measurement, multimode light source, magnetic feedback oscillation