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利用琼斯矩阵分析了双光束磁光存贮中信号读出系统偏振态的传输情况，推导了读出信号的表达式，分析了偏振分束镜与光盘盘基的相位延迟对读出信号的影响。
The Jones matrix is used to analyze the polarization state of the signal readout system in dual-beam magneto-optical storage. The expression of the readout signal is deduced. The influence of the phase delay between the polarization beam splitter and the disc base on the read signal is analyzed .