Premium
Performance of double sideband modulated probe wave in BOTDA distributed fiber sensor
Author(s) -
Cui Qingsong,
Pamukcu Sibel,
Lin Aoxiang,
Xiao Wen,
Toulouse Jean
Publication year - 2010
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.25566
Subject(s) - sideband , compatible sideband transmission , modulation (music) , brillouin zone , fiber optic sensor , time domain , frequency modulation , amplitude modulation , optical fiber , brillouin scattering , optics , microwave , physics , materials science , computer science , telecommunications , radio frequency , acoustics , quantum mechanics , computer vision
We report on the performance of double sideband (DSB) modulated probe wave in Brillouin optical time domain analysis (BOTDA) distributed fiber sensor. Compared to single sideband (SSB) modulation, along the sensing fiber the pump depletion of DSB modulation is remarkably suppressed in time domain and also has a relatively narrower Brillouin gain spectrum in frequency domain. Both the theoretical simulation and the experimental results demonstrate that the DSB modulation provides potentially longer sensing distance and higher accuracy in measurement than the SSB modulation in the BOTDA distributed fiber sensor system. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52:2713–2717, 2010; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25566