DETECTION AND LOCATION OF BREAKS IN DISTRIBUTED BRILLOUIN FIBER SENSORS

摘要

An apparatus for an optical time domain analyzer is provided. The apparatus has a pulsed laser source and a continuous wave (CW) laser source. The apparatus also has a computer readable memory for detection of a reflected pulse of an outgoing pulse from the pulsed laser source, the reflected pulse being reflected from a break in the fiber or an unterminated end of the fiber. In another embodiment, a computer program product having memory with computer readable code embodied therein is provided for determining a distance to a break or fiber end in an optical fiber. The computer program has means for detecting an outgoing pulse from a pulsed laser source in an optical time domain analyzer, means for detecting a reflected pulse and means for determining the timing of the reflected pulse relative to the outgoing pulse.