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Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XIII, 2020
In this paper, stimulated Brillouin scattering induced noise in Brillouin optical time domain analyzers is experimentally and theoretically investigated. The noise mainly comes from the beating between the probe wave and the spontaneous Brillouin scattering component and from phase-to-intensity conversion. The noise in the time and frequency domain has
Jaffar Kadum +2 more
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In this paper, stimulated Brillouin scattering induced noise in Brillouin optical time domain analyzers is experimentally and theoretically investigated. The noise mainly comes from the beating between the probe wave and the spontaneous Brillouin scattering component and from phase-to-intensity conversion. The noise in the time and frequency domain has
Jaffar Kadum +2 more
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Applied Physics Express, 2019
A distributed Brillouin optical time-domain analysis (BOTDA) sensor enhanced by forward stimulated Brillouin scattering (FSBS) based distributed Brillouin amplification (DBA) was proposed and presented. Due to co-propagating of pump and Stokes lights, the Stokes pulse is effectively amplified in front segment of fiber, resulting in flatter gain ...
Jia-Bing Lin +5 more
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A distributed Brillouin optical time-domain analysis (BOTDA) sensor enhanced by forward stimulated Brillouin scattering (FSBS) based distributed Brillouin amplification (DBA) was proposed and presented. Due to co-propagating of pump and Stokes lights, the Stokes pulse is effectively amplified in front segment of fiber, resulting in flatter gain ...
Jia-Bing Lin +5 more
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Stimulated Brillouin scattering modeled through a finite difference time domain approach
SPIE Proceedings, 2004Stimulated Brillouin scattering (SBS), in an optical fiber, is a three-wave interaction (3WI) resulting from a coupling between light and acoustic waves. In a fiber optic sensing context, SBS results from the interaction between counterpropagating pulsed and continuous fields.
Andrew E. Marble +2 more
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IEEE Photonics Technology Letters, 2000
We have investigated the stimulated Brillouin scattering (SBS) threshold of various types of fibers both theoretically and experimentally by utilizing Brillouin optical-time-domain reflectometer. The measured deviations of SBS threshold of less than /spl plusmn/0.1 dB compared with the conventional method are demonstrated for standard single-mode fiber
C.C. Lee, S. Chi
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We have investigated the stimulated Brillouin scattering (SBS) threshold of various types of fibers both theoretically and experimentally by utilizing Brillouin optical-time-domain reflectometer. The measured deviations of SBS threshold of less than /spl plusmn/0.1 dB compared with the conventional method are demonstrated for standard single-mode fiber
C.C. Lee, S. Chi
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Optical Fiber Technology, 2020
Abstracts The influence of pump pulse spectrum launched into the sensing fiber on the spontaneous Brillouin scattering and Brillouin Optical Time Domain Reflectometry (BOTDR) sensing system, is investigated both theoretically and experimentally. The pump pulse power spectrum is the essential factor for the Brillouin scattering from physical mechanism,
Yunqi Hao +4 more
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Abstracts The influence of pump pulse spectrum launched into the sensing fiber on the spontaneous Brillouin scattering and Brillouin Optical Time Domain Reflectometry (BOTDR) sensing system, is investigated both theoretically and experimentally. The pump pulse power spectrum is the essential factor for the Brillouin scattering from physical mechanism,
Yunqi Hao +4 more
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Stimulated Brillouin Scattering in the Time Domain at 1 nm^{-1} Wave Vector
Physical review lettersWe used extreme ultraviolet (EUV) pulses to create transient gratings (TGs) with sub-100 nm spatial periodicity in a 𝛽−Ga2O3 single crystal. The EUV TG launches acoustic modes parallel to the sample surface, whose dynamics were revealed via backward diffraction of a third, time-delayed, EUV pulse.
Fainozzi D. +6 more
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Generation of flat-top waveform in the time domain based on stimulated Brillouin scattering
Applied Physics B, 2007A method of generating a flat-top waveform in the time domain based on stimulated Brillouin scattering (SBS) is proposed. The transmitted pulses are simulated with pump wavelength at 1064 nm and 532 nm, respectively, and validated in the experiment performed with the Nd:YAG seed-injected laser.
W.-L.-J. Hasi +5 more
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Toward Time-Domain Brillouin Scattering in Levitation
The strong light-matter interaction of plasmonic nanoparticles has sparked great interest across diverse research fields, including biological imaging, medicine, materials science, and physics. Observing acoustic vibrations of such nanoparticles has advanced the understanding of the mechanical inter- action of these particles with their local ...openaire +1 more source
Applied Physics Letters, 2019
Coherent acoustic phonons detected by time-domain Brillouin spectroscopy (TDBS) in a liquid medium are strongly attenuated when silica nanoparticles sediment in the liquid. The decrease in the optical signal is due to the strong acoustic scattering by silica nanoparticles whose size matches the wavelength of phonons at the frequency of the Brillouin ...
Marie-Fraise Ponge +3 more
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Coherent acoustic phonons detected by time-domain Brillouin spectroscopy (TDBS) in a liquid medium are strongly attenuated when silica nanoparticles sediment in the liquid. The decrease in the optical signal is due to the strong acoustic scattering by silica nanoparticles whose size matches the wavelength of phonons at the frequency of the Brillouin ...
Marie-Fraise Ponge +3 more
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Optical Engineering, 2007
We present a simple and practical method for the single-ended distributed fiber temperature measurements using microwave (11-GHz) coherent detection and the instantaneous frequency measurement (IFM) technique to detect spontaneous Brillouin backscattered signal in which a specially designed rf bandpass filter at 11 GHz is used as a frequency ...
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We present a simple and practical method for the single-ended distributed fiber temperature measurements using microwave (11-GHz) coherent detection and the instantaneous frequency measurement (IFM) technique to detect spontaneous Brillouin backscattered signal in which a specially designed rf bandpass filter at 11 GHz is used as a frequency ...
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