OPTICAL REFLECTOMETER Russian patent published in 2018 - IPC G01M11/02 H04B10/03 

FIELD: measuring equipment.

SUBSTANCE: optical reflectometer relates to measurement equipment for measuring and controlling parameters of optical fibers (optical reflectometers) and can be used for laying and operation of fiber-optic communication lines (FOCL), determining the type and location of inhomogeneities and damages in FOCLs. Device comprises a pulse generator to which a transmitting laser module is connected, a fiber optic splitter, one output of which is connected to one input/output of a fiber-optic circulator, the second output is connected to one of inputs of the fiber optic combiner. Output of the combiner is connected to a photodetector device the output of which is connected to a time meter, the information output of which is connected to a personal computer. Second input of the combiner via the optical delay line is connected to the output of the circulator, the second input of which ends with a connector for connecting the FOCL.

EFFECT: increased accuracy of localization of inhomogeneities in the FOCL, increased resolution of the device, elimination of the "dead" zone due to the use of direct matching of the radiation time of the probing pulses with the time of arrival of the back pulses in one photodetector channel, use of a calibrated optical delay line.

1 cl, 1 dwg