DEVICE FOR MONITORING POWER TRANSMITTED THROUGH FIBER-OPTICAL COMMUNICATION LINES Russian patent published in 2000 - IPC

FIELD: radio engineering, in particular, optical signal transmission. SUBSTANCE: device uses adders for accumulation of amplitude of high-level information pulses and comparison of sum value to threshold tolerance value, which is calculated using statistical data. First embodiment of device design uses accumulation of amplitude values of all high level pulses for fixed time interval, which value is set by counter with variable counting rate. Second embodiment of device implements continuous amplitude accumulation for only high-level pulses, which amplitude is less than specific value. EFFECT: decreased probability of passing, false triggering and detection interval of intolerable drop of optical power transmitted through fiber-optical transmission line. 7 cl, 7 dwg