Automatic calibration of the actively stabilized fiber-optic time transfer

In this work we present the automated device for calibration of the actively stabilized fiber-optic time transfer system. We show a practical verification of the calibrator by comparing the results of automated calibration with much more cumbersome previous method based on step-by-step measurements with bulky equipment. Basing of this experiments we assess an uncertainty of the calibrator as ±50 ps.