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302 results on '"Fu, Guangwei"'

165. Forward and Backward Raman Amplification of Brillouin Scattering Signal in Brillouin Optical Time Domain Reflectometer System

Author

付兴虎 Fu Xinghu, 毕卫红 Bi Weihong, 付广伟 Fu Guangwei, 杨希鹏 Yang Xipeng, and 李敬阳 Li Jingyang

Subjects
Physics, Brillouin zone, Raman amplification, Optics, Brillouin scattering, business.industry, Electrical and Electronic Engineering, Optical time-domain reflectometer, business, Signal, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2014

166. Refractive Index Sensing Characteristics of a Mach-Zehnder Interferometer Based on Directly Photonic Crystal Fiber

Author

纪玉申 Ji Yushen, 付兴虎 Fu Xinghu, 刘强 Liu Qiang, 申远 Shen Yuan, 付广伟 Fu Guangwei, and 毕卫红 Bi Weihong

Subjects
Materials science, Optics, Normalized frequency (fiber optics), business.industry, Microstructured optical fiber, Electrical and Electronic Engineering, Mach–Zehnder interferometer, business, Graded-index fiber, Refractive index, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Photonic-crystal fiber
Published
2014

182. Hybrid Algorithm Particle Swarm Optimization and Levenberg-Marquardt for Brillouin Scattering Spectrum of Distributed Sensing Systems

Author

Fu Xinghu, Zhang Yan-jun, Fu Guangwei, Li Da, Liu Yin, Zhang Shuguo, and Bi Weihong

Subjects
Physics, Levenberg–Marquardt algorithm, Mathematical optimization, Brillouin scattering, Spectrum (functional analysis), Particle swarm optimization, Electrical and Electronic Engineering, Sensing system, Algorithm, Hybrid algorithm, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2012

183. A Novel Method for Brillouin Scattering Spectrum of Distributed Sensing Systems Based on Radial Basis Function Neural Networks to Extract Features

Author

付广伟 Fu Guangwei, 张燕君 Zhang Yanjun, 毕卫红 Bi Weihong, and 刘银 Liu Yin

Subjects
Physics, Optics, Radial basis function neural, Brillouin scattering, business.industry, Spectrum (functional analysis), business, Sensing system, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2012

200. Temperature characteristics of fusion splicing Hollow Core Photonic Crystal Fiber by sinusoidal modulation CO2 laser

Author

Fu, Guangwei, Li, Kuixing, Fu, Xinghu, and Bi, Weihong

Subjects
*PHOTONIC crystals, *CRYSTAL whiskers, *CARBON dioxide lasers, *TEMPERATURE effect, *HEATING, *SIMULATION methods & models
Abstract

Abstract: During the fusion splicing Hollow Core Photonic Crystal Fiber (HC-PCF), the air-holes collapse easily due to the improper fusion duration time and optical power. To analyze the temperature characteristics of fusion splicing HC-PCF, a heating method by sinusoidal modulation CO2 laser has been proposed. In the sinusoidal modulation, the variation relationships among laser power, temperature difference and angular frequency are analyzed. The results show that the theoretical simulation is basically in accordance with the experimental data. Therefore, a low-loss fusion splicing can be achieved by modulating the CO2 laser frequency to avoid the air-holes collapse of HC-PCF. Further, the errors are also given. [Copyright &y& Elsevier]

Published
2013
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