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偏振噪声
相关语句
  polarization noise
     Polarization Noise in Monomode Fiber Systems
     单模光纤系统的偏振噪声
短句来源
     An Analysis on the Polarization Noise of the Interferometric Fiber Gyroscope
     干涉式光纤陀螺的偏振噪声分析
短句来源
     An Analysis of the Optical Path′s Polarization Noise of Fiber Gyroscopes
     光纤陀螺的光路偏振噪声的理论分析
短句来源
     Principle of fiber interferometer measuring optical turbulence and analysis of polarization noise
     光纤干涉系统光学湍流测量原理及其偏振噪声问题的分析
短句来源
     The Theory Model and Experiment Research About Optical Polarization Noise in the Coherent Fiber Communication System
     相干光通信系统偏振噪声的理论模型和实验研究
短句来源
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  polarization fluctuation
     Polarization fluctuation Depressing Methods in a Ring Resonator Fiber Optic Gyro
     环形腔光纤陀螺中减小偏振噪声的方法研究
短句来源
     In this paper, the concept of polarization state is presented and the resonant properties in optic fiber ring resonator employed in R FOG are analyzed as well Furthermore some important methods capable of effectively depressing polarization fluctuation are studied and discussed, which can be applied practically to upgrading the R FOG and improving its measuring precission
     介绍了偏振态的概念,分析了光纤环形谐振腔的谐振特性,对环形谐振腔光纤陀螺中减小偏振噪声的几种方法进行了研究,这对抑制偏振噪声,进一步改善环形腔光纤陀螺的性能,提高陀螺的检测精度有一定的指导作用。
短句来源
  “偏振噪声”译为未确定词的双语例句
     From the theoretical analysis developed and experimental results obtained, it is evident that such noise is very small and can be neglected in practice.
     理论分析和实验结果表明,实际系统中偏振噪声是可以忽略的。
短句来源
     All polarization maintaining fiber Mach-Zender interferometer sensing system is constructed with polarization fiber coupler and polarizer,which can restrain the polar noise.
     选用保偏光纤耦合器、保偏光纤偏振器,构成包括传感部分在内的全部保偏的Mach Zender型光纤传感系统,从根本上抑制了系统偏振噪声;
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  polarization noise
The first estimates of the contribution from Galactic polarization noise are given for λ=3.9 cm, where the theory predicts a maximum in the CMB polarization (l~1000).
      
The main noise of the readout circuit is attributed to dielectric polarization noise, which is dominant at the operating temperature.
      
It was found that the low frequency fluctuations (polarization noise) are responsible for a strong enhancement of the current noise.
      
Polarization noise in single mode fibres and its reduction by depolarizers
      
The polarization noise, originating from the combination of single mode fibres and diffraction gratings, is investigated experimentally.
      
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  polarization fluctuation
The parameters of this state were determined, including the activation energy of the polarization fluctuations (Ea≈0.01 eV), the relaxation rate at T → ∞ (f0=1.9×1012 Hz), and the polarization fluctuation freezing temperature (Tf=183 K).
      
These results are discussed in terms of the polarization fluctuation and metastability of polar microregions.
      
Several numerical investigations (Poincaré sections, polarization fluctuation, etc.) suggest an intermediate kind of behavior between quasiperiodic and chaotic.
      
To enhance the polarization fluctuation ef fects, we randomly adjust the SOP from the source by hand with a polarization controller.
      


In this paper the mechanism of producing polarization noise in monomode fiber systems is described first. Then SNR expressions of polarization noise with several imperfect joints and modified equation of power coupling efficiency through an imperfect joint are presented. In addition, approximate maximum and minimum SNS's are also estimated. From the theoretical analysis developed and experimental results obtained, it is evident that such noise is very small and can be neglected in practice.

本文分析了单模光纤系统中偏振噪声的产生机理,推导了单模光纤接头传输效率和偏振噪声信噪比的表达式以及最大最小信噪比的近似估计。理论分析和实验结果表明,实际系统中偏振噪声是可以忽略的。

In this paper, the concept of polarization state is presented and the resonant properties in optic fiber ring resonator employed in R FOG are analyzed as well Furthermore some important methods capable of effectively depressing polarization fluctuation are studied and discussed, which can be applied practically to upgrading the R FOG and improving its measuring precission

介绍了偏振态的概念,分析了光纤环形谐振腔的谐振特性,对环形谐振腔光纤陀螺中减小偏振噪声的几种方法进行了研究,这对抑制偏振噪声,进一步改善环形腔光纤陀螺的性能,提高陀螺的检测精度有一定的指导作用。

Zero drift and polarization noise are the main two hindrances in the development of fiber gyroscopes in China. We have dealt with zero drift in Ref.[1]. In this paper, we present our results in the analysis of polarization noise. In section 1, we first established the mathematical model(eq.1) of the optical transmission system(Fig.1) by using coherence matrix and Jones matrix. Based on the above mentioned model, we analyzed the optical path′s polarization noise. Figs.3 through 6 show the variation of polarization...

Zero drift and polarization noise are the main two hindrances in the development of fiber gyroscopes in China. We have dealt with zero drift in Ref.[1]. In this paper, we present our results in the analysis of polarization noise. In section 1, we first established the mathematical model(eq.1) of the optical transmission system(Fig.1) by using coherence matrix and Jones matrix. Based on the above mentioned model, we analyzed the optical path′s polarization noise. Figs.3 through 6 show the variation of polarization noise φ ε) with the input intensity ( |S A| ), the extinction rate ( η ), the total polarization rotation (θ) , the change in ellipticity of the input state of polarization (ξ) and the reciprocal phase shift of the fiber (φ) . We proposed three measures for restraining polarization noise in section 3.

采用相干矩阵和琼斯矩阵建立了光纤陀螺光路传输系统的数学模型 ,在此基础上 ,进行了光路偏振噪声的理论分析。分析表明非偏振光输入可以抑制陀螺偏振噪声 ,同时得出了线偏振光输入时抑制偏振噪声的措施。

 
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