Results 41 to 50 of about 1,816,894 (319)

Benefits of Spectral Property Engineering in Distributed Brillouin Fiber Sensing

open access: yesSensors, 2021
As one of the most consolidated distributed fiber sensors based on stimulated Brillouin scattering, the Brillouin optical time-domain analyzer (BOTDA) has been developed for decades.
Cheng Feng, Thomas Schneider
doaj   +1 more source

Opto-mechanical time-domain analysis based on coherent forward stimulated Brillouin scattering probing

open access: yes, 2020
Guided acoustic wave Brillouin scattering has gained considerable interest in recent years because of its capacity to detect mechanical features of materials surrounding the optical fiber.
Chao Pang   +6 more
semanticscholar   +1 more source

Detrimental Effect Elimination of Laser Frequency Instability in Brillouin Optical Time Domain Reflectometer by Using Self-Heterodyne Detection

open access: yesSensors, 2017
A useful method for eliminating the detrimental effect of laser frequency instability on Brillouin signals by employing the self-heterodyne detection of Rayleigh and Brillouin scattering is presented.
Yongqian Li   +3 more
doaj   +1 more source

Brillouin Optical Correlation-Domain Technologies Based on Synthesis of Optical Coherence Function as Fiber Optic Nerve Systems for Structural Health Monitoring

open access: yesApplied Sciences, 2019
Brillouin optical correlation-domain technologies are reviewed as “fiber optic nerve systems” for the health monitoring of large structures such as buildings, bridges, and aircraft bodies.
Kazuo Hotate
doaj   +1 more source

Rayleigh–Brillouin scattering of carbon dioxide [PDF]

open access: yesOptics Letters, 2014
The spectral lineshape of spontaneous Rayleigh-Brillouin scattering in CO2 is studied in a range of pressures. The spectrum is influenced by the bulk viscosity, which is a relaxation phenomenon involving the internal degrees of freedom of the molecule. The associated relaxation rates can be compared to the frequency shift of the scattered light, which ...
Gu, Z.   +2 more
openaire   +5 more sources

Lagrangian description of Brillouin scattering and electrostriction in nanoscale optical waveguides

open access: yesNew Journal of Physics, 2015
The diffraction of light by sound waves is known as Brillouin scattering. In optical waveguides, Brillouin scattering can arise from both bulk contributions, modelled by photoelasticity, and surface contributions, which are due to the waveguide ...
Vincent Laude, Jean-Charles Beugnot
doaj   +1 more source

Brillouin cavity optomechanics with whispering-gallery microresonators [PDF]

open access: yes, 2020
Cavity quantum optomechanics is a field of investigation which studies the interaction between optical and mechanical degrees of freedom applying the powerful methods of quantum optics.
Enzian, Georg Philipp Artus
core   +1 more source

Brillouin scattering in hybrid optophononic Bragg micropillar resonators at 300  GHz [PDF]

open access: yesOptica, 2018
We introduce a monolithic Brillouin generator based on a semiconductor micropillar cavity embedding a high frequency nanoacoustic resonator operating in the hundreds of GHz range.
M. Esmann   +11 more
semanticscholar   +1 more source

A multiplexed CW Brillouin system for precise interrogation of a sensor array made from short discrete sections of optical fibre [PDF]

open access: yes, 2008
A novel configuration for precise temperature sensing in an array of optical fibre sections is reported. The sections are chosen to have different Brillouin shifts, to enable separation of scattered light signals in the frequency domain, rather than the ...
Dakin, J. P.   +7 more
core   +2 more sources

Brillouin and Kerr nonlinearities of a low-index silicon oxynitride platform

open access: yesAPL Photonics, 2023
Nonlinear optical effects including stimulated Brillouin scattering (SBS) and four-wave mixing (FWM) play an important role in microwave photonics, optical frequency combs, and quantum photonics.
Kaixuan Ye   +7 more
doaj   +1 more source

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