Patent ID: 8502964
Filing Date: 2013-08-06
Classification: G01B,G01M

Abstract:
1. A chaotic optical time domain reflectometer comprising: a chaotic laser transmitter which emit a chaotic laser signal to one end of an optical fiber as a target to be tested; a fiber coupler which divides the chaotic laser signal into the probe signal I and the reference signal II, wherein the probe optical signal I is amplified by an optical amplifier ( two photodetectors which separately convert the backscattered probe optical signal and the reference optical signal into electrical signals; two A/D converters which separately convert electrical signals from two photodetectors into digital signals; a signal processing device which correlates the probe signal with the reference signal; a display device which displays the measuring results generated by the signal processing device; wherein the chaotic laser signal, generated by the chaotic laser transmitter ( through an optical circulator ( the reference optical signal II is converted into the electrical signal by a photodetector ( two digital signals from two A/D converters (