国家自然科学基金(60925019)

作品数:9被引量:13H指数:2
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相关作者:刘永张旨遥石胜辉周晓军杨帆更多>>
相关机构:电子科技大学更多>>
相关期刊:《光子学报》《Science Bulletin》《光电子.激光》《量子光学学报》更多>>
相关主题:谐波失真色散半导体光放大器ADCUSING更多>>
相关领域:电子电信理学自动化与计算机技术机械工程更多>>
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Analog-to-digital converters using photonic technology被引量:7
《Chinese Science Bulletin》2014年第22期2666-2671,共6页Zhiyao Zhang Heping Li Shangjian Zhang Yong Liu 
supported by the National Basic Research Program of China (2011CB30705 and 2012CB315701);the National Natural Science Foundation of China (60925019, 61205109);Science and Technology Innovation Team of Sichuan Province (2011JTD0001)
This paper presents a brief review of photonic analog-to-digital converters(ADCs).Some typical schemes and operation principles of photonic ADCs,including photonic sampling ADCs,photonic quantizing ADCs,photonic sampl...
关键词:光子技术 转换器 ADC 工作原理 子采样 突破性 量化 
基于十倍光学拉伸的5GHz微波信号模数转换研究(英文)被引量:2
《光子学报》2014年第7期107-111,共5页彭迪 张旨遥 杨帆 袁飞 刘永 
The National Basic Research Program of China(No.2012CB315701,2012CB315702and 2011CB301705);the National Nature Science Foundation of China(No.60925019,61090393,61205109,61377037);the Science and Technology Innovation Team of Sichuan Province(No.2011JTD0001);the Fundamental Research Funds for the Central Universities(No.ZYGX2011J052)
利用光学时间拉伸法对微波信号进行降频处理,提高了后端电子模数转换器的有效模拟带宽和有效采样速率.设计了一套对5GHz微波信号十倍降频的光学时间拉伸模数转换系统.对色散导致的信号功率损耗特性以及调制引起的谐波失真进行了理论分...
关键词:模数转换器 光子学 色散 拉伸 谐波失真 
Optically injection-locked Fabry-Perot laser diodes based radio-over-fiber system for hybrid fiber-wireless access networks
《Chinese Science Bulletin》2013年第7期608-611,共4页ZHANG YaLi ZHANG ShangJian LIU Yong 
supported by the National Basic Research Program of China ("973" Project) (Grant No. 2012CB315701,2012CB315702);the National Hi-Tech Research and Development Program of China ("863" Project) (Grant No. 2011AA010303);the National Nature Science Foundation of China (Grant No. 60925019,61090393)
A new radio-over-fiber system for use in hybrid fiber-wireless access networks is proposed and experimentally demonstrated,which is based on cascaded injection-locked Fabry-Perot laser diodes.It is verified that the p...
关键词:无线接入网络 激光二极管 注入锁定 网络系统 混合光纤 无线电 纤维 基带信号 
短泵浦脉冲作用下的SOA线宽增强因子的变化特性
《光电子.激光》2012年第11期2079-2083,共5页陈立功 努尔买买提 郑秀 张尚剑 刘永 
国家“973”计划(2011CB301705);国家自然科学基金(60925019,61090393);四川省科技创新研究团队(2011JTD0001);中央高校基本科研业务费(ZYGX2009Z002)资助项目
采用集成了半导体光放大器(SOA)的马赫-曾德尔干涉仪(MZI)测量短泵浦脉冲调制下的SOA的线宽增强因子,分析短泵浦脉冲作用下的线宽增强因子的时分变化特性以及影响线宽增强因子的物理机制。结果显示,SOA的线宽增强因子受到超快动力学过...
关键词:超快光学 线宽增强因子 相位调制 半导体光放大器(SOA) 
High-frequency characterization of an optical phase modulator with phase modulation-to-intensity modulation conversion in dispersive fibers
《Chinese Science Bulletin》2012年第22期2929-2933,共5页ZHANG ShangJian LU RongGuo CHEN DeJun LIU Shuang LIU Yong 
supported by the National Basic Research Program of China(2011CB301705,2012CB315701);the Program for New Century Excellent Talents in University(NCET-11-0069);the National Natural Science Foundation of China(60907008,60925019,61090393)
We propose a new method for characterizing optical phase modulators based on phase modulation-to-intensity modulation (PM-to-IM) conversion in dispersive fibers.The fiber dispersion spectrally alters the relative phas...
关键词:相位调制器 强度调制 散纤维 光学 表征 矢量网络分析仪 高频 扫频测量 
基于周期压力单模光纤长周期光栅的折射率传感特性研究被引量:4
《光电子.激光》2012年第9期1644-1648,共5页石胜辉 周晓军 张旨遥 刘永 
国家自然科学基金(60925019);中央高校基本科研业务费(ZYGX2009Z002);四川省科技创新研究团队(200JTD0001)资助项目
利用交替放置的两个相同周期性刻槽板,对放置于套管中的单模裸纤和待测媒质施力,形成了具有复合光波导结构的长周期光纤光栅(LPFG)。实验研究了不同折射率待测媒质对LPFG传输谱的影响。结果表明:复合波导光栅的光谱呈现双谐振峰现象,且...
关键词:光纤光学 折射率传感器 复合波导光栅 周期压力 
Theoretical analysis of ultra-fast phase recovery in semiconductor optical amplifiers被引量:1
《Chinese Science Bulletin》2012年第9期1078-1082,共5页CHEN LiGong XU TianXiang ZHENG Xiu ZHANG ShangJian GUO XiaoWei TANG XiongGui LIU Yong 
supported by the National Basic Research Program of China (2011CB301705);National Natural Science Foundation of China(60925019,61090393 and 60907008)
We present results from theoretical analysis of the phase dynamics in semiconductor optical amplifiers(SOAs).In particular,we focus on an aspect of the ultra-fast phase recovery that currently does not have adequate i...
关键词:半导体光放大器 光分/插复用器 动力学理论 光信号处理 物理机制 数值模型 响应特性 载体加热 
二维光子晶体的特殊色散特性研究
《量子光学学报》2012年第1期75-81,共7页王文超 王智勇 张伟 邱琪 刘永 
中央高校新兴学科与创新研究基金(No:ZYGX2010X013);国家自然科学基金(批准号:60925019;61090393)
为了研究光场在二维光子晶体中的传播特性,本文应用平面波展开法,得到了二维三角晶格光子晶体的能带结构,在此基础上,运用时域有限差分法,分析了在一定入射角度下,特定频率的光束在光子晶体中的负折射现象,由于应用光子晶体的自准直效应...
关键词:光子晶体 超棱镜 时域有限差分法 负折射 
Normalized transfer function for characterizing conversion efficiency and harmonic distortion of all-optical sampling
《Chinese Science Bulletin》2011年第15期1633-1636,共4页ZHANG ShangJian LIN ChangYu LI Xuan ZOU ZhiTai LIU Yong LIU YongZhi 
supported by the National Natural Science Foundation of China (60736038,60907008 and 60925019);the Education Ministry Funds for New Teachers (200806141102 and 20090185120027)
A novel method for characterizing the nonlinearity of all-optical sampling is proposed based on the normalized transfer function.Simulation results demonstrate the effectiveness of our method.Furthermore,an all-optica...
关键词:非线性特征 传递函数 谐波失真 转换效率 采样 全光 归一化 仿真结果 
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