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BANDWIDTH: 作品数：419被引量：538H指数：9; 导出分析报告; 相关领域：电子电信更多>>; 相关作者：毛陆虹贺振华彭真明田琳陈颖频更多>>; 相关机构：电子科技大学清华大学天津大学复旦大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家高技术研究发展计划中国博士后科学基金更多>>

Bandwidth-reduced Brillouin optical time-domain analysis based on a quarter of the frequency of modulation: 《Optoelectronics Letters》2022年第8期472-478,共7页ZHANG Xiangfei WEI Zhengjun ZHENG Yingfang WANG Jindong; Aiming at the problem of high requirement for the signal generator in the Brillouin optical time-domain analysis(BOTDA)system,a quarter of the Brillouin frequency shift(BFS)of modulation is proposed to reduce the requ...; 关键词：BANDS analysis QUARTER

Thermal tuning of chirped SOI sidewall grating for tunable wavelength, delay, and bandwidth: 《Optoelectronics Letters》2021年第4期205-208,共4页DING Jia-yue ZOU Xi-hua ZOU Fang PAN Wei YAN Lian-shan LUO Bin; supported by the National Key Research and Development Program of China(No.2019YFB2203601);the Fundamental Research Funds for the Central Universities(No.2682020ZT31)。; In this work, we design a silicon-on-insulator(SOI) sidewall grating with tunable wavelength, delay, and bandwidth through thermal tuning. Incorporating uniform sidewall corrugations and a linearly chirped rib wavegui...; 关键词：TUNABLE tuning SOI

Research on slow light transmission with wide bandwidth and large normalized delay bandwidth product: 《Optoelectronics Letters》2021年第7期407-411,共5页MA Yanyan WU Rong LI Longfei; supported by the Gansu Natural Science Foundation (No.1610RJZ046)。; In order to obtain excellent slow-light performance, we propose a photonic crystal waveguide(PCW) that introduces extrinsic defect rods in the center row of a complete square lattice rotated 45° counterclockwise and ...; 关键词：WAVEGUIDE light normalized

Holographic grating fabrication for wide angular bandwidth using polymer thin films: 《Optoelectronics Letters》2021年第1期1-4,共4页WU Peng-fei WU Zi-jun ZHUANG Yu LIU Hong-liang; This work has been supported by the National Natural Science Foundation of China(Nos.61575097,21473093 and 11704201);the Natural Science Foundation of Tianjin City(No.17JCQNJC01600).; To increase the angular bandwidth of volume holographic grating, we fabricate holographic gratings based on grating multiplexing technique by using thin films of photopolymers and polymer dispersed liquid crystals. Ex...; 关键词：technique. WAVEGUIDE HOLOGRAPHIC

Bandwidth-reconfigurable single-passband microwave photonic filter based on stimulated Brillouin scattering被引量：2: 《Optoelectronics Letters》2019年第1期11-15,共5页GONG Jing-wen LI Xiao-jun TAN Qing-gui LIANG Dong JIANG Wei; supported by the National Advanced Research Foundation of China(No.614241105010717); A bandwidth-reconfigurable filter is necessary to meet the need of growing communication capacity and signal coverage frequency range. The stimulated Brillouin scattering(SBS) gain spectrum as a filter passband is use...; 关键词：MICROWAVE FILTER SCATTERING

A widely tunable microwave photonic notch filter with adjustable bandwidth based on multi-wavelength fiber laser: 《Optoelectronics Letters》2017年第4期259-262,共4页LI Xin-yang CAO Ye XU Dong TONG Zheng-rong YANG Jing-peng; supported by the National Natural Science Foundation of China(No.11444001);the Municipal Natural Science Foundation of Tianjin in China(No.14JCYBJC16500); A widely tunable microwave photonic notch filter with adjustable bandwidth based on multi-wavelength fiber laser is proposed and demonstrated. The multi-wavelength fiber laser generates the multi-taps of the microwave...; 关键词：Bandpass filters BANDWIDTH Fiber lasers Finite difference method Frequency response Microwave filters

PDM-DPSK-MPPM hybrid modulation for multi-hop free-space optical communication被引量：4: 《Optoelectronics Letters》2016年第6期450-454,共5页王卓石文孝吴芃霞; supported by the National Natural Science Foundation of China(No.61373124); A hybrid polarization division multiplexed-differential phase shift keying-multipulse pulse position modulation(PDM-DPSK-MPPM) scheme for multi-hop free-space optical(FSO) communication is investigated. The analytical...; 关键词：DPSK turbulence keying coherent demodulation verified bandwidth QPSK links modulated

A novel polarization splitter based on octagonal dualcore photonic crystal fiber: 《Optoelectronics Letters》2016年第4期257-260,共4页马勇邹辉韦玮; supported by the National Natural Science Foundation of China(No.61405096); A novel polarization splitter based on octagonal dual-core photonic crystal fiber(O-D-PCF) is proposed. The impacts of several fiber parameters on the coupling characteristics of the polarization splitter are investig...; 关键词：BANDWIDTH Crystal whiskers Fibers Finite element method Nonlinear optics POLARIZATION

Performance analysis of relay-aided free-space optical communication system over gamma-gamma fading channels with pointing errors被引量：1: 《Optoelectronics Letters》2016年第4期294-298,共5页傅慧华王平王冉冉刘晓霞郭立新杨银堂; supported by the National Natural Science Foundation of China(No.61474090);the Fundamental Research Funds for the Central Universities(No.JB160105);the 111 Project of China(No.B08038); The average bit error rate(ABER) performance of a decode-and-forward(DF) based relay-assisted free-space optical(FSO) communication system over gamma-gamma distribution channels considering the pointing errors is stud...; 关键词：BANDWIDTH Bit error rate Distribution functions ERRORS Fading channels Monte Carlo methods Probability density function Probability distributions

Transverse flowmetry of carbon particles based on photoacoustic Doppler standard deviation using an auto-correlation method: 《Optoelectronics Letters》2015年第3期226-228,共3页卢涛孙丽君; supported by the Joint Funds of the National Natural Science Foundation of China(No.U1204612);the Natural Science Foundation of He’nan Educational Committee(No.13A416180); In order to measure the flow velocity of carbon particle suspension perpendicular to the receiving axis of ultrasound transducer, the standard deviation of photoacoustic Doppler frequency spectrum is used to estimate ...; 关键词：BANDWIDTH Carbon Correlation methods Flow velocity Mathematical transformations Optical pumping Pumping (laser) STATISTICS Time domain analysis Transducers Ultrasonic propagation Ultrasonic scattering Ultrasonic transducers

BANDWIDTH