FIELD: optics.
SUBSTANCE: invention relates to the fibre-optic technology. Device comprises a station part, an optical fiber transport cable connected by optical contact to the reflectometer at one end, and connected to a splitter a second end used to fork and continue transporting the energy of the probing pulses to sensitive parts of the optical circuit of the device, adjusting optical coils, splitters of the transport part of the optical circuit; splitters, intended directly for the formation of an optical ring sensitive part of the device, and fiber optic detectors. Shunted transport parts of the device on a part of the splitters and segments of the transport cable produce a separation of the energy of the probe pulse to the required power level in order to provide the magnitude of the reflection signals from the sensitive part of the optical circuit of the device in the nominal range from the measurement scale of the receiving device, as well as deliver the energy of the laser pulse to the splitters that form the optical rings of the sensitive part of the optical circuit of the device and form the return signals of the probe pulse.
EFFECT: technical result consists in providing the possibility of using as a primary data carrier of a reflection or return signal using a small fraction of the probe pulse power.
12 cl, 4 dwg
