Frequency-domain analysis of dynamically applied strain using sweep-free Brillouin time-domain analyzer and sloped-assisted FBG sensing | Zendy

Asher Voskoboinik | Zendy; Dvora Rogawski | Zendy; Hao Huang | Zendy; Yair Peled | Zendy; Alan E. Willner | Zendy; Moshe Tur | Zendy

Open Access

Frequency-domain analysis of dynamically applied strain using sweep-free Brillouin time-domain analyzer and sloped-assisted FBG sensing

Author(s) -

Asher Voskoboinik,

Dvora Rogawski,

Hao Huang,

Yair Peled,

Alan E. Willner,

Moshe Tur

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.00b581

Subject(s) - optics , fiber bragg grating , brillouin zone , materials science , spectrum analyzer , brillouin scattering , time domain , sensitivity (control systems) , domain analysis , fiber optic sensor , image resolution , optical fiber , sweep frequency response analysis , acoustics , physics , electronic engineering , software construction , software , software system , computer science , computer vision , programming language , engineering

Fast reconstruction of the whole Brillouin gain spectrum is experimentally demonstrated using sweep-free Brillouin optical time-domain analysis (SF-BOTDA). Strain variations with the frequencies up to 400 Hz are spectrally analyzed, achieving strain sensitivity of 1 microstrain per root Hz at a sampling rate of 5.5 kHz and a spatial resolution of 4m. The results favorably compare with fiber Bragg grating sensing.

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