METHOD OF FORMING INTERNAL TIME SCALE OF DEVICES COMPARING AND SYNCHRONIZING TIME SCALE AND FIBER-OPTIC REFLECTOMETERS AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2017 - IPC G04G7/00 H04B10/71 H04B10/25 

FIELD: physics.

SUBSTANCE: method and device of forming the internal time scale of the devices comparing and synchronizing the time scale and the fiber-optic reflectometers, are based on the generation of optical pulses and their direction to the circulator, recording the moment of pulse emission by the photodetector, a circulator and a semitransparent mirror located between the circulator outlet and the inlet to the investigated fiber-optic line, in reflectometry, or to the fiber-optic line connecting remote objects, in synchronization of time scales. Herewith the radiation moment of an optical pulse in the line is fixed by a photodetector in the same channel as the pulse coming from the line.

EFFECT: increasing the comparison and synchronization accuracy of the remote object time scales by using the fiber-optic communication lines.

2 cl, 1 dwg