Method of measuring the coefficient of fourth order chromatic dispersion in optical fiber and device for measuring the coefficient of fourth order chromatic dispersion of optical fiber

摘要

"Method of measuring the coefficient of fourth order chromatic dispersion in optical fiber and device for measuring the coefficient of fourth order chromatic dispersion in optical fiber.Covers a method in two stages, capable of measuring the chromatic dispersion of fourth order of one optical fiber or photonic device; the treaty includes a tunable laser and low power, a noise source width ~ 1nm and low spectral density, espectr analyzer. The optical controller, a polarization coupler.An optical filter and optical fiber to be characterized; the use of the method and the device well treated allows, in addition to the measure of the chromatic dispersion of an optical fiber or fourth order of photonics, a big economy and practicality.