title: Numerical analysis of single pulse and differential pulse-width pair BOTDA systems in the high spatial resolution regime.
abstract: A numerical analysis of conventional and differential pulse-width pair Brillouin optical time domain analysis systems is reported. The tests are focused on determining the performance of these systems especially in terms of spatial resolution, as a function of the pulse characteristics. A new definition of spatial resolution is given, based on analysis of the shape of the Brillouin gain spectrum. The influence of the rise/fall time of the pulse light to the spatial resolution is also studied.
authors: Dipartimento di Ingegneria dell’Informazione – Seconda Università di Napoli, Via Roma, 29, 81031 Aversa, Italy. aldo.minardo@unina2.it
authors: Aldo
authors: A
authors: Minardo
authors: Romeo
authors: R
authors: Bernini
authors: Luigi
authors: L
authors: Zeni
mesh_terms: D000669:Amplifiers, Electronic; D004867:Equipment Design; D008027:Light; D012031:Refractometry / Q000295:instrumentation*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D014159:Transducers