Measurement of Fiber Chromatic Dispersion Using a Mode-Locked Fiber Laser

摘要

We demonstrate a mode-locked fiber laser (MLFL) method for measuring the chromatic dispersion of long transmission fiber. In this method, device under test (DUT) is inserted in the laser cavity, and the chromatic dispersion is measured by the shift of mode-locking frequency when the lasing wavelength is changed. The experimental results of the MLFL method for a 5 km-long single-mode fiber had good agreement with the conventional phase-shift method.