SYSTEM FOR MEASURING WAVELENGTH DISPERSION OF OPTICAL FIBER

摘要

A branch section transmits optical pulses of a plurality of wavelengths successively emitted from a light source at one end of an optical fiber to be measured, and extracts reflected lights from the optical fiber. A light receiving section detects reflected lights from the branch section and outputs them as measurement data. The processing section calculates a wavelength dispersion value of the optical fiber by detecting a time of emitting the optical pulse of each of the wavelengths from the light source. In a case where the optical fiber is formed of a plurality of optical fibers connected in series by at least one connecting point, the processing section calculates wavelengths dispersion values of the respective optical fibers by detecting the time of emitting the optical pulse, a time of receiving a reflected light from the connecting point and a time of receiving a reflected light from another end of the optical fiber.