Abstract
A technique for the accurate processing of experimental data measured with the distributed Brillouin sensor at
centimeter spatial resolution is proposed. It uses analytical solutions of the steady-state-coupled intensity
equations for stimulated Brillouin scattering. This technique includes experimental parameters such as pulsewidth
and extinction ratio, pulse (Stokes) and pump powers, and sensing fiber characteristics. This approach also accounts
for the effects induced by the ac and dc parts of the pulse. It is capable of extracting strain components hidden in
a distorted single-peak spectrum by the implementation of form factors to analyze the shape of the spectrum. This
signal processing technique has been validated by experimental data obtained under controlled laboratory conditions.
The good agreement between reconstructed and measured spectra reflects the Brillouin frequency shift and the strain
affecting the fiber.
© 2007 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription