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DEMODULATION: 作品数：108被引量：190H指数：7; 导出分析报告; 相关领域：电子电信更多>>; 相关作者：宋怡桥汪康齐宁华李东光吉贵军更多>>; 相关机构：清华大学东南大学哈尔滨工业大学天津大学更多>>; 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天津市自然科学基金更多>>

Multi-direction bending sensing based on spot pattern demodulation of dual-hole fiber: 《Chinese Optics Letters》2023年第12期92-96,共5页李波瑶梁瑶瑶谢仲业左小杰孙敬华; supported by the Basic and Applied Basic Research Foundation of Guangdong Province(No.2022A1515110480);the National Natural Science Foundation of China(No.62205057);the Dongguan Science and Technology of Social Development Program(No.20231800903222).; A multi-direction bending sensor based on spot pattern demodulation of a dual-hole fiber(DHF)is proposed.By using the interference and scattering in a DHF,the related multidirectional variations can be captured by the...; 关键词：microstructured optical fiber fiber device bending sensor

Temperature-sensing scheme based on a passively mode-locked fiber laser via beat frequency demodulation: 《Chinese Optics Letters》2023年第2期28-32,共5页罗健王浩然蔡勋罗正钱付宏燕; supported by the National Natural Science Foundation of China(NSFC)(No.61975167)。; In this paper,we propose a temperature-sensing scheme utilizing a passively mode-locked fiber laser combined with the beat frequency demodulation system.The erbium-doped fiber is used in the laser ring cavity to provi...; 关键词：temperature sensing mode-locking fiber laser beat frequency

White light interferometry with spectral-temporal demodulation for large-range thickness measurement被引量：3: 《Chinese Optics Letters》2022年第9期25-30,共6页Yunlong Zhu Zhuoran Li Xu Lu Yonggui Yuan Jun Yang; supported by the National Natural Science Foundation of China(Nos.62005062 and 61975040);the National Science Fund for Distinguished Young Scholars of China(No.61925501);the Open Fund of Guangdong Provincial Key Laboratory of Information Photonics Technology(No.GKPT20-02)。; Film thickness measurement can be realized using white light interferometry,but it is challenging to guarantee high precision in a large range of thicknesses.Based on scanning white light interferometry,we propose a s...; 关键词：white light interferometry thickness measurement spectral-temporal demodulation thin film

Four-quadrant demodulation fiber sensor for wavelength monitoring of a wavelength phase-shifting interferometer: 《Chinese Optics Letters》2022年第8期12-17,共6页Xiaoqin Shan Xingyue Fan Zhigang Han Jin Wang Fengrui Li Rihong Zhu; This work was supported by the Postgraduate Research&Practice Innovation Program of Jiangsu Province(No.KYCX21_0277);the National Natural Science Foundation of China(No.61875087).; Real-time monitoring of wavelength is important for high-speed wavelength phase-shifting interferometry.In this paper,a wavelength sensor based on a polarization-maintaining fiber interferometer with four-quadrant dem...; 关键词：optical testing wavelength phase-shifting interferometer polarization-maintaining fiber interferometer four-quadrant polarization demodulation wavelength sensing

Demodulation of the multi-peak fiber Bragg grating sensor based on partial wavelength scan被引量：4: 《Chinese Optics Letters》2020年第7期45-51,共7页Pan Dai Yu Zhou Leilei Wang Shangjing Liu Xuping Zhang Xiangfei Chen; supported by the National Key R&D Program of China(Nos.2017YFA0206401 and 2018YFB2201801);the National Natural Science Foundation of China(No.61435014);the Key R&D Program of Jiangsu Province(No.BE2017003);the Natural Science Foundation of Jiangsu Province(No.BK20160907); Until now, a high-efficiency demodulation method for fiber Bragg grating(FBG) sensors has been a challenge.In this Letter, by employing multi-peak FBGs, an FBG sensor with a partial wavelength scan is proposed and ini...; 关键词：fiber Bragg grating fiber sensor multi-peak fiber Bragg grating

Real-time measurement of nano-particle size using differential optical phase detection: 《Chinese Optics Letters》2017年第12期15-19,共5页李晴黄河林峯吴兴坤; supported in part by the National Natural Science Foundation of China(NSFC)under Grant No.61378086; We demonstrate a size sensing technique for nano-particles using optical differential phase measurement by a dual fiber interferometer through phase-generated carrier （PGC） demodulation. Nano-particle diameters are ...; 关键词：DIAMETERS INTERFEROMETER PERTURBATION DEMODULATION screening adding normalized wastewater MUNICIPAL SIZING

Frequency-tunable wireless access scheme based on the optoelectronic oscillating technique: 《Chinese Optics Letters》2017年第11期91-94,共4页王侯军闫连山叶佳罗斌潘炜邹喜华李沛轩; supported by the National High Technology Research and Development Program of China(No.2015AA016903);the National Natural Science Foundation of China(Nos.61405165,61335005,and 61325023); A frequency-tunable wireless access scheme based on optoelectronic oscillating technology is proposed and experimentally demonstrated.By using this scheme,the frequency of the transmitted wireless signals can be tuned...; 关键词：TUNABLE receiver OPTOELECTRONIC TRANSMITTER detecting tuned DEMODULATION transmitted keying MODULATED

Field-programmable gate array-based large-capacity sensing network with 1642 ultra-weak fiber Bragg gratings: 《Chinese Optics Letters》2016年第1期45-48,共4页王治文泓桥胡宸源白巍戴玉堂; A field-programmable gate array （FPGA）-based large-capacity sensing network with ultra-weak fiber Bragg gratings （FBGs） is proposed and experimentally studied. The demodulation system is constructed to interrogate...; 关键词：Bragg gratings DEMODULATION Fiber Bragg gratings Light amplifiers Logic gates Optical variables measurement Reconfigurable hardware Semiconductor optical amplifiers Time division multiplexing

Multichannel fiber optic Fabry-Perot nonscanning correlation demodulator被引量：3: 《Chinese Optics Letters》2013年第7期10-12,共3页王宁朱永龚天诚李丽慧陈伟民; A multichannel fiber-optic Fabry-Perot （F-P） demodulator based on nonscanning correlation demodula- tion is proposed. The demodulator principle is analyzed, and the prototype of nonscanning correlation demodulation ...; 关键词：DEMODULATION FABRY Perot interferometers Fiber optics Optical variables measurement Sensor networks

Simultaneous DPSK demodulation and wavelength conversion scheme for Rayleigh backscattering noise mitigation in WDM-PON: 《Chinese Optics Letters》2013年第2期21-23,共3页冯翰林肖石林义理林周钊史杰戚涛; supported by the National "973" Project of China(Nos.2010CB328205,2010CB328204,and 2012CB315602);the National Natural Science Foundation of China(Nos.60972032,61090393,61132004,and 60825103);the National "863" Project of China; We propose a scheme for mitigating Rayleigh backscattering noise and demodulating differential phase- shift keying （DPSK） signals in wavelength-division-multiplexed passive optical networks （WDM-PONs） with injecti...; 关键词：BACKSCATTERING Optical variables measurement Passive optical networks Single mode fibers

DEMODULATION