ausblenden:
Schlagwörter:
Brillouin optical time domain analysis; fiber optic sensor; single-sideband modulation
Zusammenfassung:
We demonstrate an alternative technique to reduce pump depletion and to
improve sensitivity in the long-range Brillouin optical time-domain
analysis (BOTDA) sensor. Our BOTDA system uses an anti-Stokes
single-sideband suppressed-carrier modulation technique that balances
the pump depletion due to fiber loss. With this technique, we show both
numerically and experimentally a great improvement compared to the dual
sideband standard technique.
