Results 131 to 140 of about 25,400 (165)
Safety Monitoring Method for Pipeline Crossing the Mining Area Based on Vibration-Strain Fusion Analysis. [PDF]
Micromachines (Basel)He J, Qin T, Zhang Z, Liu R, Bao Y.
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Stimulated Brillouin scattering in micro/nanophotonic waveguides and resonators. [PDF]
NanophotonicsRen L +6 more
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Applied Optics, 2009
We propose a simple and cost-effective technique that can reduce the electrical bandwidth for Brillouin frequency-shift sensors with heterodyne detection without the need for expensive instruments or a complicated system. With this technique we use only a reference fiber.
Daisuke, Iida, Fumihiko, Ito
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We propose a simple and cost-effective technique that can reduce the electrical bandwidth for Brillouin frequency-shift sensors with heterodyne detection without the need for expensive instruments or a complicated system. With this technique we use only a reference fiber.
Daisuke, Iida, Fumihiko, Ito
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Bandwidth-reduced Brillouin optical time domain reflectometry using reference Brillouin scattering
Optical Fiber Communication Conference and National Fiber Optic Engineers Conference, 2009We present a bandwidth reduced BOTDR realized by using reference Brillouin scattering as a local light. Temperature distribution sensing is successfully demonstrated by compensating for the temperature variation in the reference fiber.
Daisuke Iida, Fumihiko Ito
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Asia Communications and Photonics Conference/International Conference on Information Photonics and Optical Communications 2020 (ACP/IPOC), 2020
A coherent P-OTDR system with phase modulation is proposed and demonstrated to suppress Stimulated Brillouin scattering and improve the probe power. With multiple-band probe, over 6 dB SNR improvement is achieved in 35 km sensing fiber.
Hong Zhang +3 more
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A coherent P-OTDR system with phase modulation is proposed and demonstrated to suppress Stimulated Brillouin scattering and improve the probe power. With multiple-band probe, over 6 dB SNR improvement is achieved in 35 km sensing fiber.
Hong Zhang +3 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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Post-implantation depth profiling using time-domain Brillouin scattering
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2019Abstract The unique capabilities of time domain Brillouin scattering (TDBS) for studying post-implantation effects on optical and opto-elastic properties of semiconductors are discussed. This method utilizes coherent acoustic phonons to measure depth-dependent optical and opto-elastic changes arising from structural damage caused by ion implantation.
Andrey Baydin +3 more
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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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SPIE Proceedings, 2008
Brillouin Optical Time-Domain Reflectometry (BOTDR) is attracting significant attention due to its immense potential applications in temperature or strain monitoring. Conventional BOTDR system based on Spontaneous Brillouin Scattering Spectrum(SBSS) narrow-band detection is not only time-consuming but also controlling complicated.
Yuangang Lu, Rongrong Dou, Xuping Zhang
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Brillouin Optical Time-Domain Reflectometry (BOTDR) is attracting significant attention due to its immense potential applications in temperature or strain monitoring. Conventional BOTDR system based on Spontaneous Brillouin Scattering Spectrum(SBSS) narrow-band detection is not only time-consuming but also controlling complicated.
Yuangang Lu, Rongrong Dou, Xuping Zhang
openaire +1 more source