title: Fast Brillouin Optical Time Domain Analysis for dynamic sensing.
abstract: A new technique for the fast implementation of Brillouin Optical Time Domain Analysis (BOTDA) is proposed and demonstrated, carrying the classical BOTDA method to the dynamic sensing domain. By using a digital signal generator which enables fast switching among 100 scanning frequencies, we demonstrate a truly distributed and dynamic measurement of a 100 m long fiber with a sampling rate of ~10 kHz, limited only by the fiber length and the frequency granularity. With 10 averages the standard deviation of the measured strain was ~5 µε.
authors.affiliation: The Faculty of Engineering, Tel-Aviv University, Tel-Aviv 69978, Israel. yairpeled@gmail.com
authors.forename: Yair
authors.initials: Y
authors.lastname: Peled
authors.forename: Avi
authors.initials: A
authors.lastname: Motil
authors.forename: Moshe
authors.initials: M
authors.lastname: Tur