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A Research on Improving the Precision of Rotating-Wave Plate Polarization Measurement

机译:提高旋转波形偏振测量精度的研究

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The device errors of a rotating-wave-plate-based polarization measurement system can be mainly categorized as the angle error of the polarization prism, the fast axis angle error of wave-plate and the retardation error. By applying Fourier analysis to solve Stokes vectors, we obtain the formulas to calculate the three errors mentioned above, using linear 0° and 45° polarized light to illuminate the system for the error solving. We analyze the measurement errors of the degree of polarization, the polarization purity and the intensity of polarization state, under certain simulation conditions. The results show that after the calibration, the measurement accuracy is improved. Finally, we analyze the effects of the angle error of the linear polarized light used for calibration to the measurement of the three parameters.
机译:旋转波板的偏振测量系统的器件误差主要分为偏振棱镜的角度误差,波片的快速轴角误差和延迟误差。通过应用傅立叶分析来解决Stokes载体,我们获得了计算上述三个误差的公式,使用线性0°和45°偏振光来照亮系统进行误差求解。在某些模拟条件下,我们分析了极化程度,偏振纯度和偏振状态强度的测量误差。结果表明,在校准后,测量精度得到改善。最后,我们分析了用于校准的线性偏振光的角度误差对三个参数测量的影响。

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