Impact of Raman scattering and modulation instability on the performances of Brillouin sensors
The impact of Raman scattering and modulation instability is studied in Brillouin time-domain analysis systems. It turns out to be very detrimental for long-range sensing as a result of the extended interaction length combined to the high pump peak pulse power. The conditions under which these effects limit the sensing range are determined and the modeling is very well confirmed by experimental results.
Record created on 2011-05-23, modified on 2016-12-05