Open AccessCost-effective method for fast Brillouin optical time-domain analysis
Author(s) -
Aldo Minardo,
Ester Catalano,
Luigi Zeni
Publication year - 2016
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.025424
Subject(s) - brillouin zone , optics , brillouin scattering , time domain , microwave , computer science , frequency domain , physics , optical fiber , telecommunications , computer vision
A new Brillouin optical time-domain analysis (BOTDA) technique for acquiring the full Brillouin gain spectrum (BGS) at high speed is proposed and demonstrated. The method employs a frequency swept microwave source for the generation of the probe wave, so that the entire BOTDA measurement is taken within the duration of the frequency sweep itself. By properly setting the duration of the sweep, the repetition rate of the pump pulses and the number of averages, truly distributed and dynamic measurements of the BGS are possible using a set-up at a fraction of the cost and complexity of the previously reported fast-BOTDA methods.