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We have developed a prototype Brillouin optical time-domain reflectometry (BOTDR) system, called a double-pulse BOTDR (DP-BOTDR) system, for measuring distributed strain and temperature along fiber with a sub-meter spatial resolution. Oscillatory and steep power spectra of Brillouin backscattered signal have been observed with the DP-BOTDR, which allows us to measure Brillouin frequency shift accurately...
We developed a prototype double-pulse BOTDR (DP-BOTDR) system. The system can measure a distributed Brillouin frequency shift, i.e., the distributed strain and temperature, with a spatial resolution of 20 cm and accuracy of plusmn 20 mustain.
A novel Brillouin optical time-domain reflectometry (BOTDR) system, called a double-pulse BOTDR (DP-BOTDR) system, is proposed for measuring distributed strain and temperature in a fiber with a sub-meter spatial resolution. The DP-BOTDR system transmits double-pulsed lights instead of conventional single-pulsed lights into the fiber, and the received Brillouin backscattered signals are passed through...
A novel Brillouin optical time-domain reflectometry (BOTDR) system, called a double-pulse BOTDR (DP-BOTDR) system, is proposed for measuring distributed strain and temperature in a fiber with a sub-meter spatial resolution. Our experiment confirmed that the DP-BOTDR system enables us to measure the distributed Brillouin frequency shift, i.e., the distributed strain and temperature, with a spatial...
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