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偏振
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  polarization
    Researches on Adaptive Technology of Compensation for Polarization Mode Dispersion
    偏振模色散动态补偿技术研究
短句来源
    Monitoring and Compensation of Polarization Mode Dispersion in High Speed Optical Fiber Communication
    高速光纤通信系统中偏振模色散的监测与补偿
短句来源
    Polarization Noise in Monomode Fiber Systems
    单模光纤系统的偏振噪声
短句来源
    Approximate Formula for the Calculation of Polarization Properties of Bow-Tie and Panda Optical Fibers
    计算BOW-TIE和PANDA光纤偏振性质的近似公式
短句来源
    The Radio Burst Polarization and Dual-Frequency Observation System Interface With High Temporal Resolution
    射电爆发偏振、双点频高时间分辨观测系统接口
短句来源
更多       
  polarization properties
    Approximate Formula for the Calculation of Polarization Properties of Bow-Tie and Panda Optical Fibers
    计算BOW-TIE和PANDA光纤偏振性质的近似公式
短句来源
    Polarization Properties of High-Index-Elliptical-Core Bragg Fibers
    高折射率椭圆芯布拉格光纤的偏振特性
短句来源
    Polarization Properties of Three Kinds of Polarization Maintaining Fibers
    三种保偏光纤的偏振特性研究
短句来源
    Polarization Properties of Indexing-Guiding Highly Birefringence Photonic Crystal Fibers
    折射率导模高双折射光子晶体光纤的偏振特性
短句来源
    Influences of the Structures of Elliptical-Core Photonic Crystal Fibers with Elliptical Pores on the Polarization Properties
    椭圆孔椭圆芯光子晶体光纤结构对偏振特性的影响
短句来源
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  a polarization
    The stage number of the squeezer is decreased from five to three. The experiment results show that the response time of the controller is less than 10μs, the controlling error is less than 2‰, a polarization change faster than 1000πrad/s can be tracked and the insertion loss is less than 0 6dB.
    实验结果表明 ,该偏振控制器的响应时间小于 1 0 μs ,控制偏差小于 2‰ ,可以跟踪大于1 0 0 0πrad/s的偏振变化 ,插入损耗小于 0 6dB。
短句来源
    The PMD tolerance of PM DPSK transmission system can increase by 96% if the PMD of the optical link is compensated by a PMD compensator that consist of a polarization controller and a variable delay line.
    采用偏振控制器加可变延迟线进行PMD补偿后,DPSK的PM系统的PMD容限提高达96%.
短句来源
    The performance of PM system compensated by a first-order PMD compensator, a polarization controller followed by a variable delay line, has also been simulated.
    我们也给出了采用偏振控制器加可变时延线的PMD补偿后,系统性能的仿真结果。
短句来源
    This paper reports a polarization control technique for coherent optical fiber communication systems.
    本文报导一种适于相干光纤通信系统应用的单模光纤偏振自动控制技术。
短句来源
    A polarization independent frequency shift keying(FSK)heterodyne balanced re-ceiver is considered,including the model of this receiver,fabrication and the test of the bulk po-larization beamspiltter,and the preliminary experiment.
    考虑在FSK(频移键控)调制方式下平衡混频式相干光偏振分集接收技术的研究,包括这种接收方式的理论模型分析、体型偏振分束器的研制、测试及初步的接收实验。
短句来源
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  “偏振”译为未确定词的双语例句
    Prediction of Zero Polarization-mode Dispersion in Graded-core Anisotropic Optical Fibres
    渐变芯各向异性光纤零偏振模色散的预言
短句来源
    Analysis about Coefficient of Parallel Waveguide with Nonparallel Optical Axes
    偏振轴非平行的平行波导耦合系数分析
短句来源
    STUDY ON THEORY AND APPLICATION OF DUAL-POLARIZATION RADAR IN CHINA
    我国双线偏振雷达探测理论及应用研究
短句来源
    We show that the efficiency of two-stage PMD compensators is best for RZ and NRZ format with DOP of single SOP as feedback signal according to the relationship of the compensated DOP,DGD and BER. And the effect of compensation is not ideal for CSRZ and CRZ format all the time.
    仿真得到了四种码型的DOP与误码率(BER)的关系,同时补偿后的BER、DOP和PMD的变化关系表明,对RZ和NRZ码采用二级补偿器的效果比一级和三级补偿器要好得多,对CSRZ码和CRZ码采用单偏振态的DOP作为反馈信号进行PMD补偿的效果并不理想。
短句来源
    Optical signalnoise ratio(OSNR) is obtained from the measurement of PS and PN,and according to the relationship of OSNR and DOP,the monitoring of DOP can be implemented.
    将偏振扰频器与基本正交偏振分束探测相结合,首先由偏振信号光功率PS和消偏的背景噪声PN得到光信噪比(OSNR),然后再通过OSNR与偏振度(DOP)的关系来实现多信道DOP的监测。
短句来源
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  polarization
In the interesting case when the group is of Coxeter typeDn (n≥4) we use higher polarization operators introduced by Wallach.
      
When the characteristic of k is 0, it is known that the invariants of d vectors, d ≥ n, are obtained from those of n vectors by polarization.
      
From elements of the invariant algebra C[V]G we obtain, by polarization, elements of C[kV]G, where k ≥ 1 and kV denotes the direct sum of k copies of V.
      
The remanent polarization (Pr) and coercive electric field (Ec) of the measured PZT thin films are 47.7 μC/cm2 and 18 kV/cm, respectively.
      
Impact of polarization mode dispersion and nonlinear effect on 40 Gbit/s dense wavelength division multiplexing system
      
更多          
  polarization properties
We consider a taxonomic classification of gas and dust comets according to dust polarization properties.
      
These were used to determine the integrated rotation measures of 18 sources, 15 of which had never been measured previously, which hindered analysis of the intrinsic polarization properties of objects in the complete sample.
      
The polarization properties of radiation at the frequencies of resonance lines diffusely reflected from a scattering atmosphere are discussed.
      
The polarization properties of a monochromatic beam of light are ordinarily determined by three numbers, for example, the Stokes parameters.
      
The polarization properties of the effect are analyzed under various experimental conditions.
      
更多          
  a polarization
A polarization control of ultrafiltration processes irrespective of polymer chain flexibility was proved from the differences in transport characteristics under two filtration regimes, the filtration with stirring and dead-end filtration.
      
Formation of a Polarization Jet during the Expansion Phase of a Substorm: Results of Ground-Based Measurements
      
In the general case there act upon the liquid dielectric a Coulomb force related to space charge and a polarization force [1].
      
Electron beams with a polarization of up to 88% were obtained with photocathodes at room temperature.
      
A new version of a polarization analyzer ensuring parallel measurements of six polarization components of spectral lines is considered.
      
更多          


Using a method of the spatial frequency filtering by combining the directional filtering with the very low frequency filtering, the desirable optical signals cau be taken out of a considerably complex image. In order to improve the image contrast and to single out the desirable signals in a coherent image enhancement system, a polarizing filter was used. When the relative polarization between the object transparency illumination and the polarizing filter was altered, the low frequency attenuation could be continuously...

Using a method of the spatial frequency filtering by combining the directional filtering with the very low frequency filtering, the desirable optical signals cau be taken out of a considerably complex image. In order to improve the image contrast and to single out the desirable signals in a coherent image enhancement system, a polarizing filter was used. When the relative polarization between the object transparency illumination and the polarizing filter was altered, the low frequency attenuation could be continuously controlled over a wide range of light intensity. Therefore the maximization of the image contrast was easily achieved. We have done the experiment by taking earthquake wave signals out of the background with both high and low frequency. The result obtained indicates that our experiment on the comprehensive spatial frequency filtering is successful.

采用方向性滤波与极低频滤波相结合的方法,可以从较复杂的图象中提取所需用的信号.为了在相干象增强系统中提高象的对比度,突出所需用的信号,采用了偏振滤波器.只要改变照明光的振动面与滤波器振动面之间的夹角,就能在一个较宽的光强度范围内,连续调节低频成份的衰减量,从而很方便地得到最佳象的对比度.利用上述方法进行了从具有高、低频背景图象中提取地震波信号的实验.实验结果表明,我们对这种综合的空间滤波技术的尝试是成功的.

Starting from theoretical analysis and analogue experiments on the microwave X-band, we have investigated in this paper the influence of light polarization on the attenuation of an integrated optical channel, and proposed that by proper choosing the mode of optical channel, it is possible to attain smaller attenuation and better characteristics without change of geometrical configuration and electrical profile of the waveguide.

本文从理论分析和X频段的微波模拟实验出发,探讨了光的偏振对集成光路衰耗的影响;并提出:若适当选择光路的工作模式,可在不改变波导的几何结构和电气剖面的情况下,取得较小的损耗,使集成光路具有较好的性能。

This paper deals with the mode polarization effect of real single-mode optical fiber (double refraction effect), explains with emphasis the Poincare' Sphere representation of the state of polarization (SOP) and its charactiristics. In addition, some tentative rema(?)ks are made on the research works in this area.

本文介绍了实际单模光导纤维中存在的模式偏振效应(双折射效应),着重解释了偏振状态(Sop)的Poincafe'球描述方法及其特点。并对这方面的研究工作做了一些初步的评述。

 
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