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fiber dispersion     
相关语句
  光纤色散
     The results indicate that when a step index quartz optical fiber with NA=0.37 is used,the influence of the optic fiber dispersion on rise time of signals of fiber-optic pin is 54±14 ns/km,the loss of optic signals is 4.4±0.2 dB/km.
     结果表明,在采用数值孔径为0.37的阶跃石英光纤传输时,光纤色散对光纤探针信号前沿的展宽为54±14 ns/km,光纤损耗对光纤探针光信号的影响为4.4±0.2 dB/km。
短句来源
     The effect of optical fiber dispersion parameter on the performance of average-soliton transmission system using PSA as in-line amplifiers has been analyzed theoretically by computer simulation.
     采用计算机系统仿真方法研究光纤色散参量对应用相敏光放大器 (PSA)作为在线放大器并采用平均孤子传输方案的光孤子通信系统传输性能的影响。
短句来源
     Research of the technology of compensating single mode fiber dispersion by high-order mode
     高阶模补偿单模光纤色散技术研究
短句来源
     For single-mode [fiber dispersion measurement, the relative error can be better than 3% if the test fiber is longer than 10km. When the test fiber is shorter, the relative error becomes worse. However, it is still applicable to identify whether a single-mode fiber meets the dispersion specification of 6ps, kru-nm at 1.3μm wavelength region.
     对单模光纤色散测量,当待测光纤长度达10km以上时,相对测量误差小于3%. 在待测光纤较短时,相对误差增大,但此时仍可满意地鉴别单模光纤在1.3μm波长下是否符合6ps/km·nm这一技术指标.
短句来源
     As a new technology for fiber dispersion compensation,Electronic Dispersion Compensation(EDC) is gradually being applied in practical projects.
     电子色散补偿(EDC)技术作为一种新的光纤色散补偿技术正在逐步进入实用化阶段。
短句来源
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  纤维分散
     Effects of fiber dispersion on mechanical properties of C/C-SiC composites
     纤维分散对C/C-SiC复合材料力学性能的影响
短句来源
     In this paper, fiber bundles were dispersed by the special fiber dispersion device. The fibre bundles could be well dispersed while the total wrap angle is 270°and fiber tension around 25N.
     本文利用纤维分散装置使纤维分散 ,发现纤维束的总包覆角为 2 70°、纤维张力为 2 5N时 ,纤维可被较好地分散 ;
短句来源
     It shows that the protease may cause fiber cross-link in sheep garment leathers whose fiber dispersion degree is high.
     试验表明:用酶处理使纤维分散已达相当程度的绵羊服装革,在进一步松散纤维的同时会引起纤维的交联;
短句来源
     The results show that the solution concentration determines fiber dispersion directly; the crystallinity of electrospun nylon 66 nanofiber membranes is much lower than that of unelectrospun nylon 66.Moreover,the crystallinity of the membranes is also influenced by the voltage and the crystallinity declines to amorphous as the voltage increases.
     结果表明,纺丝液浓度对纤维分散形态有决定性作用,尼龙66电纺纤维膜结晶度比未纺丝的尼龙66的结晶度要低得多,并且电压对结晶度影响很大,电压增加使结晶度降低,电纺纤维膜的晶体结构趋于无定型。
短句来源
  光纤色散的
     Spectral Analysis of the Fiber Dispersion
     光纤色散的频谱分析
短句来源
     Numerical solution of multi-clad fiber dispersion
     多包层光纤色散的数值解法
短句来源
     Especially, LiNbO_3 optical modulators, using M-Z waveguides and traveling-wave electrodes, are essential for high-speed and long-haul optical fiber transmission systems since the wavelength chirp is very small and the effect of the fiber dispersion is minimized.
     采用行波电极的M-Z型外调制器调制速率高,波长的啁啾噪声理论上为零,几乎不受光纤色散的限制,已成为高速长距离光纤传输系统必不可少的器件。
短句来源
     A simple and explicit analytical model for Stimulated Raman Scattering(SRS) effects in fiber dispersion walk-off regime is presented.
     文章提出了一种考虑光纤色散的受激拉曼散射(SRS)效应的分析模型,它计算简便,且物理意义明确。
短句来源
     Especially, LiNbO3 optical modulators, using M-Z waveguides and traveling-wave electrodes, are essential for high-speed and long-haul optical fiber transmission systems since the wavelength chirp is very small and the effect of the fiber dispersion is minimized.
     采用行波电极的M-Z型外调制器调制速率高,波长的啁啾噪声理论上为零,几乎不受光纤色散的限制,已成为高速长距离光纤传输系统必不可少的器件。
短句来源
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  纤维分散性
     The Evaluation of Fiber Dispersion
     纤维分散性的评价
短句来源
     The definition of crowding factor,the effects on crowding factor and the relation between crowding factor and fiber dispersion are introduced in this paper.
     本文介绍了拥挤因子的定义 ,影响拥挤因子的因素以及拥挤因子与纤维分散性的关系
短句来源

 

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      fiber dispersion
    The results confirm in part the analytic expressions for the bulk moduli of such composites previously derived by the authors, but also emphasize the importance of fiber dispersion even at dilute concentrations.
          
    Despite the variation of dispersion with wavelength due to the fiber dispersion slope, the transmission in several different channels can be optimized simultaneously using the same optimal launch point.
          
    For the case of two-step dispersion maps with distributed Raman amplification to compensate for the fiber loss, we find special schemes that have optimal (chirp-free) launch point locations that are independent of the fiber dispersion.
          
    Moreover, the analysis indicates that fiber nonlinearity (which limits the minimum channel spacing) affects the traffic performance more severely compared to fiber dispersion (limits code cardinality).
          
    The optical channel is modeled putting into account the combined effect of fiber dispersion, laser source non ideal performances (e.g.
          
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    The principle of operation, design, construction and measured results of time-domain measurement system using pulse spreading are presented in this paper. All of the elements and devices used in this system are made in China. The system can be used to measure single-mode fiber dispersion at longer wavelength (1.3μm). It is shown by the measured results and analyses that the system is applicable to multi-mode fiber dispersion measurement and photodeteotor response time measurement with high accuracy....

    The principle of operation, design, construction and measured results of time-domain measurement system using pulse spreading are presented in this paper. All of the elements and devices used in this system are made in China. The system can be used to measure single-mode fiber dispersion at longer wavelength (1.3μm). It is shown by the measured results and analyses that the system is applicable to multi-mode fiber dispersion measurement and photodeteotor response time measurement with high accuracy. For single-mode [fiber dispersion measurement, the relative error can be better than 3% if the test fiber is longer than 10km. When the test fiber is shorter, the relative error becomes worse. However, it is still applicable to identify whether a single-mode fiber meets the dispersion specification of 6ps, kru-nm at 1.3μm wavelength region.

    本文介绍了全部采用国产元器件建立的时域法脉冲展宽测量系统的原理、设计、结构及测试结果.该系统可用来测定单模光纤长波长(1.3μm)色散.测试结果及分析表明,本系统可满意地用于多模光纤色散和光电探测器响应速度测量;对单模光纤色散测量,当待测光纤长度达10km以上时,相对测量误差小于3%.在待测光纤较短时,相对误差增大,但此时仍可满意地鉴别单模光纤在1.3μm波长下是否符合6ps/km·nm这一技术指标.

    It was proved theoretically and experimentlly that the frequency flipping of phase conjugation can be used to compensate the dispersive effect in fibers. From Fourier transformation in the dispersive optical fibers we derived the condition in which the quadratic dispersive effect in the fibers can be neglected. The curves of bandwidth and reflectivity of the conjugate mirror versus nonlinear medium length and | K| L are obtained.The Primary factors affecting compensation for fiber dispersion are found...

    It was proved theoretically and experimentlly that the frequency flipping of phase conjugation can be used to compensate the dispersive effect in fibers. From Fourier transformation in the dispersive optical fibers we derived the condition in which the quadratic dispersive effect in the fibers can be neglected. The curves of bandwidth and reflectivity of the conjugate mirror versus nonlinear medium length and | K| L are obtained.The Primary factors affecting compensation for fiber dispersion are found out.

    利用相位共轭器的频率反转特性的,补偿光纤中的色散效应,在理论上和实验上得到了证明.由色散脉冲的傅里叶交换确定了光纤中二次色散效应可以被忽略的条件,得到了共轭器的反射率和带宽与非线性介质的长度L,参数|K|L之间的关系曲线,找到了影响补偿效果的主要因素.

    The morphology of capillary extrudate of chlorinated polyethylene (CPE) reinforced by short glass fiber (SGF) composites which were treated (Ttype )or untreated (O type ) with silane coupling agent were investigated by scanning electron micrography . The extrudate was brittle ruptured at low temperature , with axial section A and radial section D .The electron micrograph of axial section A shows that , for T type CPE/SGF composites , coupling agent increases the binding force between two phases , the matrix...

    The morphology of capillary extrudate of chlorinated polyethylene (CPE) reinforced by short glass fiber (SGF) composites which were treated (Ttype )or untreated (O type ) with silane coupling agent were investigated by scanning electron micrography . The extrudate was brittle ruptured at low temperature , with axial section A and radial section D .The electron micrograph of axial section A shows that , for T type CPE/SGF composites , coupling agent increases the binding force between two phases , the matrix is towed obviously , thus decreases the elasticity of the composites . For O type CPE/SGF composites , there exists obvious interface between SGF and matrix , forminghallow holes or pipes , which decrease the mechanical properties of the composites .The micrography of radial section D shows that the elasticity of T type CPE/SGF composites is lower than that of O type .The shear function has great effect on orientation and dispersion of glass fiber .differences between two types of interface state of the composites make glass fiber dispersion great difference , and the composites both have rotational flow in the capillary .

    用扫描电镜研究了硅烷改性玻璃短纤维(T型SGF)填充氯化聚乙烯(CPE)复合体系及未改性玻璃短纤维(O型SGF)充CPE复合体系的毛细管挤出物形态,结果显示出剪切等流动因素对玻璃短纤维(SGF)的取向性和分散性有很大影响;不同SGF复合体系的界面状态不同,SGF分散情况也存在着较大差异;复合材料在毛细管流变仪中均存在着明显的旋转流动。

     
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