光的色散
- 网络dispersion;Dispersion of Light
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使虚边缘质量有明显下降的主要因素有3个:光的色散、高频噪声和CCD光敏元处于临界状态所带来的问题。
There are mainly 3 factors causing obvious decrease of the quality of virtual edge : chromatic dispersion , high-frequency noises ane problems caused by CCD pixels in critical state .
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光的色散分为三种:即介质色散,波导色散和模式色散。这几种色散的物理机制是不同的。
Optical dispersion can be classified into medium dispersion , waveguide dispersion and intermodel dispersion which have different physical mechanism .
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目前,实现纳米尺度的光学控制主要有两种方法,一种方法是利用周期性的光子晶体结构控制光的色散和传播性质。
Currently , the realization of nano-scale manipulation of photons has two main methods . One method is the use of periodic photonic crystals to control light dispersion and transmission .
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无初始啁啾高斯光脉冲的色散展宽及色散补偿
Dispersion Broadening and Compensation of Non-Chirp Original Gaussian Optical Pulse
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光网络的色散补偿技术
Dispersion compensation technologies for optical network
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数值结果表明:非线性光波导的色散方程很困难求解时,单纯形方法对于分析非线性光波导的传输特性简单而且有效。
Numerical results demonstrate that this method is simple and efficient for analyzing characteristics of nonlinear waveguides in cases where numerical solutions of complicated dispersion equations are difficult .
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正交频分复用技术可以抵抗光通信中的色散效应,将OFDM引入光标记交换系统,具有抗色散、抗干扰、频谱效率高等多方面的优势,能够实现信号的长距离传输。
Orthogonal frequency division multiplexing ( OFDM ) can combat dispersion in optical communication . Using OFDM in optical label switching system , there will be so many advantages such as anti-dispersion , anti-interference and high spectral efficiency that can realize long-distance signal transmission .
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利用理论分析和数值模拟的方法,计算了光纤光栅中反射带隙附近光场满足的色散关系,分析了传输脉冲的相速度、群速度与群速度色散(GVD)。
The dispersion relation of the optical field close to the photonic band gap in fiber gratings is obtained through theoretical analysis and numerical simulation . The phase velocity , group velocity and group velocity dispersion ( GVD ) of the transmission pulse are analyzed .
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液晶光阀的电光色散特性研究
Study on Photoelectric Dispersion Characteristic of Liquid Crystal Light Valve
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光通信系统的色散限制的若干因素分析
The factors of dispersion limitation for the optic telecommunication system
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光的传播与色散
Propagation and Dispersion of Light
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光谱仪器是利用光的辐射、色散和吸收等原理,对物质的成分和含量进行定性和定量分析的光学仪器。
Spectrometer is a kind of optical instrument that analyzes the composition and content of materials qualitatively and quantitatively according to the principle of light radiation , dispersion and absorption .
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光学部分工科院校物理课程只讲述了波动光学的知识,而医学院校则讲述了几何光学、波动光学,农林院校讲述了波动光学和光的吸收、色散和散射。
In optics , engineering physics course only tell of knowledge of waves optics , medical physics tell of geometry optics and waves optics , farming and forest physics tell of waves optics and rays absorbing , dispersion .
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阐述光子晶体光纤在现代宽带光通信系统的色散补偿技术中的应用潜力,并说明如何设计光子晶体光纤的几何结构来补偿目前商用光通信系统中传输光纤的色散。
In this paper , the DCF-application potential of the PCFs in the modern optical communication system is demonstrated , along with the designing method of the PCF 's configuration for compensating the dispersion of the transmission fibers .
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WDM光传输系统中的色散补偿与四波混频抑制研究利用色散管理抑制半导体光放大器引起的信道间串扰
Research on Dispersion Compensation and Suppression of Four-Wave Mixing Effect in WDM Optical Transmission Systems
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分析转移矩阵方法确定多层平板光波导TM模的色散方程非均匀平板波导的色散方程
Determination for TM Mode Dispersion Equations of Multi-layer Planar Optical Waveguide Based on Analytic Transfer Matrix Method
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应用相敏光放大器的非零色散位移光纤通信系统中的ISI限制距离研究
ISI limitation for non zero dispersion shift fiber transmission system using in-line phase-sensitive amplifiers
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结果表明,通过选择适当的光纤光栅参数,级联光栅能够对WDM系统中由于常规光纤而色散展宽的光脉冲进行有效的色散补偿。
The results show that the effective compensation can be achieved if the parameters of cascade fiber gratings are chosen carefully .
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对应不同波长的照明光,h-S1L的材料色散作用将对其透射场特性产生影响。h-SIL的分辨率、焦深和聚焦强度对照明光的波长变化非常敏感,都随着波长的变化成周期性的振荡。
The transmitted field characters of h-SIL are affected by the material dispersion with illuminating lights of different wavelengths , The resolution , focal depth , focused intensity of h-SIL are sensitive to the change of wavelength and have a periodic oscillation whh the wavelength 's change .
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光子晶体光纤与光通信相关的奇异色散特性
Fantastic dispersion properties related to optical communication applications of photonic crystal fibers
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超高速光传输系统使用的色散补偿技术
Dispersion compensation technology in ultra high-speed optical transmission system
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运用有效折射率法获得不同光波导结构的单模色散曲线。
Acquiring the normalized dispersion curves of different rib optical waveguide structures by EIM .
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光孤子通信系统的色散控制研究
Dispersive control of fiber soliton communication system
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其次,对慢光的群速、色散、脉冲失真等指标做了说明。
Then , we describe slow light with group velocity , dispersion , and pulse distortion .
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同时还发现,当外加场的拉比频率相位发生改变时,系统对探测光场的吸收和色散将随之变化。
At the same time , we found that the system could also exhibit enhancement accompanied with a big negative refractive index , and if the light field phase is changed , the absorption and dispersion of the probe laser are also changed .
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分析液晶光阀(LCLV)的电光色散特性,重点研究扭曲向列型液晶光阀TB3639的电光色散特性。
The electro-optical properties and dispersion characteristics of a liquid crystal light valve ( LCLV ) were investigated .
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在相互作用表象下,运用电偶极矩和旋转波近似及其密度矩阵方程理论,探讨了准∧型能级系统中相干光场之间的不同的相对相位对探测光场的色散和吸收的影响。
Using electric dipole moment and the rotating wave approximation and matrix theory , the dispersion and absorption properties of the quasi-lambda four-level system driven by different relative phase are investigated on the condition of the interaction representation .
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以产生虹现象小水珠的色散原理为基础,分析了透明圆形截面纤维在平行光照条件下,一次内表面反射光中笛卡尔线的色散机理与特征;
In this paper a systematic analysis is made about the principle and characteristic of the round fiber dispersiveness based on the dispersive principle of the little drips which can produce rainbow .
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由于不同频率成分和不同模式分量的光信号在光纤中的传播速度不同,造成了信号在传播一定距离后产生失真,这种现象被称作光的色散或者弥散。
Because velocity of optical travelling in optical fiber varies with frequencies and mode types , this results in spreading of the signal distortion or dispersion of light .