Search Results - "Qu, Ronghui"

Laser phase and frequency noise measurement by Michelson interferometer composed of a 3 × 3 optical fiber coupler by Xu, Dan, Yang, Fei, Chen, Dijun, Wei, Fang, Cai, Haiwen, Fang, Zujie, Qu, Ronghui

“…A laser phase and frequency noise measurement method by an unbalanced Michelson interferometer composed of a 3 × 3 optical fiber coupler is proposed. The…”
Get full text

Characteristics and Explanations of Interference Fading of a \phi -OTDR With a Multi-Frequency Source by Zhou, Jun, Pan, Zhengqing, Ye, Qing, Cai, Haiwen, Qu, Ronghui, Fang, Zujie

“…The characteristics of interference fading in a phase sensitive optical time domain reflectometer (φ-OTDR) system with a three optical frequency source are…”
Get full text

Selective removal of polycyclic aromatic hydrocarbons (PAHs) from soil washing effluents using biochars produced at different pyrolytic temperatures by Li, Helian, Qu, Ronghui, Li, Chao, Guo, Weilin, Han, Xuemei, He, Fang, Ma, Yibing, Xing, Baoshan

“…•Pyrolytic temperature influenced wheat straw-derived biochar properties.•Biochars selectively removed PAHs from effluents and recovered Triton X-100.•PAH…”
Get full text

Interference-Fading-Free \Phi -OTDR Based on Differential Phase Shift Pulsing Technology by Wang, Xiao, Lu, Bin, Wang, Zhaoyong, Zheng, Hanrong, Liang, Jiajing, Li, Luchuan, Ye, Qing, Qu, Ronghui, Cai, Haiwen

“…In order to mitigate the interference fading problem in a phase-demodulated phase-sensitive optical time-domain reflectometer (Φ-OTDR) based on heterodyne…”
Get full text

Phase-sensitive OTDR system based on digital coherent detection by Zhengqing Pan, Kezhen Liang, Qing Ye, Haiwen Cai, Ronghui Qu, Zujie Fang

“…The digital coherent detection method is employed into the φ-OTDR. The heterodyne detection offers very high optical gain while the digital signal processing…”
Get full text

Orthogonal polarization mode coupling for pure twisted polarization maintaining fiber Bragg gratings by Yang, Fei, Fang, Zujie, Pan, Zhengqing, Ye, Qing, Cai, Haiwen, Qu, Ronghui

“…Spectral characteristics of orthogonal polarization mode coupling for pure twisted polarization maintaining fiber Bragg gratings (PM-FBG) are proposed and…”
Get full text

Brillouin Frequency Shift of Fiber Distributed Sensors Extracted from Noisy Signals by Quadratic Fitting by Zheng, Hanrong, Fang, Zujie, Wang, Zhaoyong, Lu, Bin, Cao, Yulong, Ye, Qing, Qu, Ronghui, Cai, Haiwen

“…It is a basic task in Brillouin distributed fiber sensors to extract the peak frequency of the scattering spectrum, since the peak frequency shift gives…”
Get full text

High SNR Φ-OTDR with Multi-Transverse Modes Heterodyne Matched-Filtering Technology by Liu, Yifan, Yang, Junqi, Wu, Bingyan, Lu, Bin, Shuai, Luwei, Wang, Zhaoyong, Ye, Lei, Ying, Kang, Ye, Qing, Qu, Ronghui, Cai, Haiwen

“…Phase-sensitive optical time domain reflectometer (Φ-OTDR) has attracted attention in scientific research and industry because of its distributed dynamic…”
Get full text

High SNR Φ-OTDR Based on Frequency and Wavelength Diversity With Differential Vector Aggregation Method by Gu, Jinfeng, Lu, Bin, Yang, Junqi, Wang, Zhaoyong, Ye, Lei, Ye, Qing, Qu, Ronghui, Cai, Haiwen

“…Phase-demodulated phase-sensitive time domain reflectometer (Φ-OTDR) has attracted much attention because of its linear relationship between the phase…”
Get full text

Fiber Ring With Long Delay Used as a Cavity Mirror for Narrowing Fiber Laser by Pan, Zhengqing, Ye, Qing, Cai, Haiwen, Qu, Ronghui, Fang, Zujie

“…A fiber ring with an extremely low reflectivity fiber Bragg grating inserted as a slow-light component is proposed and demonstrated to be used as a cavity…”
Get full text

Novel distributed passive vehicle tracking technology using phase sensitive optical time domain reflectometer by 王照勇 潘政清 叶青 卢斌 方祖捷 蔡海文 瞿荣辉

“…A novel distributed passive vehicle tracking technology is proposed and demonstrated. This technology is based on a phase-sensitive optical time domain…”
Get full text

Detailed Evaluation of Centroid Analysis for Extracting Brillouin Frequency Shift of Fiber Distributed Sensors by Zheng, Hanrong, Fang, Zujie, Wang, Zhaoyong, Lu, Bin, Cao, Yulong, Ye, Qing, Qu, Ronghui, Cai, Haiwen

“…Performances of centroid analysis (CA) used for extracting Brillouin frequency shift (BFS) from noisy signals are studied in this paper. The variance of…”
Get full text

Novel Slow-Light Reflector Composed of a Fiber Ring Resonator and Low-Reflectivity Fiber Bragg Grating by Ye, Qing, Pan, Zhengqing, Wang, Zhaoyong, Fang, Zujie, Cai, Haiwen, Qu, Rong Hui

“…Slow-light components are attractive for many practical applications, such as narrow linewidth lasers and optical delay line. Characteristics of a novel…”
Get full text

Generation of ultra-flat optical frequency comb using a balanced driven dual parallel Mach–Zehnder modulator by Jian Wang, Jian Wang, Haiwen Cai, Haiwen Cai, Dijun Chen, Dijun Chen, Ronghui Qu, Ronghui Qu

Get full text

Rapid and quantitative detection of ethanol proportion in ethanol–gasoline mixtures by Raman spectroscopy by Ye, Qing, Xu, Qinfeng, Yu, Yongai, Qu, Ronghui, Fang, Zujie

“…The paper reports a Raman spectral in-situ detection technique to measure the ethanol proportion in an ethanol–gasoline mixture rapidly and quantitatively. The…”
Get full text

Polarization Characteristics of an External Cavity Diode Laser With Littman-Metcalf Configuration by Dijun Chen, Dijun Chen, Zujie Fang, Zujie Fang, Haiwen Cai, Haiwen Cai, Ronghui Qu, Ronghui Qu

“…Polarization characteristics of an external cavity diode laser (ECDL) in Littman configuration with a diffraction grating are presented in this letter. Using a…”
Get full text

Determination of methanol ratio in methanol-doped biogasoline by a fiber Raman sensing system by Xu, Qinfeng, Ye, Qing, Cai, Haiwen, Qu, Ronghui

“…A novel Raman spectral method is reported to determine the methanol ratio in methanol-doped biogasoline quantitatively and quickly. The Raman spectrum…”
Get full text

Experimental investigation of optical beam deflection based on PLZT electro-optic ceramic by Ye, Qing, Dong, Zuoren, Fang, Zujie, Qu, Ronghui

“…Based on the optical characteristics of PLZT (Lead Lanthanum Zirconate Titanate) electro-optic ceramic, two kinds of electro-optical deflectors, triangular…”
Get full text

Slow-Light Effect and Mode Selection of Double Fiber Ring With a Fiber Bragg Grating by Qin, Xiaoqiong, Cai, Haiwen, Fang, Zujie, Ying, Kang, Ding, Zhidan, Wang, Di, Wei, Fang, Yang, Fei, Ye, Qing, Qu, Ronghui

“…A novel slow-light reflector composed of a double-ring resonator with a uniform fiber Bragg grating (FBG) incorporated is proposed in this paper, which can be…”
Get full text

Numerical Investigation of Ultrashort Complex Pulse Generation Based on Pulse Shaping Using a Superstructure Fiber Bragg Grating by Qing Ye, Qing Ye, Rui Huang, Rui Huang, Qinfeng Xu, Qinfeng Xu, Haiwen Cai, Haiwen Cai, Ronghui Qu, Ronghui Qu, Zujie Fang, Zujie Fang

“…A technique for ultrashort complex pulse generation based on the pulse shaping of superstructure fiber Bragg grating (SSFBG) is presented. We apply this…”
Get full text