当滤波器失谐量较大时，得到同相波长转换结果，此时交叉相位调制(XPM)占主导作用，而滤波器起到提取啁啾信息的作用。
And the non-inverted conversion is obtained by large filter detuning, which is used to extract the frequency chirps, and in this condition the cross phase modulation (XPM) is dominant.
控制策略选用的是同相载波层叠调制，并且利用DSP的EPWM模块进行了数字化的实现。
Phase disposition modulation is selected as control strategy, which is digitally realized by EPWM module of DSP.
采用同相放大电路成功实现了对微弱调制光电信号的接收，并采取简单但行之有效的方法滤除了偏置电压引入的噪声干扰；
The laser beam modulation frequency has been increased to achieve better accuracy. The circuit has been designed in a simple manner to reduce unexpected error and debugging complexity.
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