论文标题
基于纤维的设置中电气调制器引起的极化调制的效果
Effects of polarization modulation induced by electro-optic modulators in fiber-based setups
论文作者
论文摘要
使用琼斯的形式主义，证明用于相位调制的电气调制器会产生由沿调制器晶体学轴的相位调制深度差引起的输出极化的调制。我们研究了在光纤设置中这种极化调制的两个后果，从而限制了高灵敏度测量设备的性能。第一个是其部分转化为呈现偏振损失（PDL）的任何组件中的残余振幅调制（RAM）。第二个是一种新效果，它由在纤维腔输出处检测到的信号的失真组成。在每种情况下计算检测到的信号的理论表达式。
Using the Jones formalism, it is shown that electro-optic modulators used for phase modulation generate a modulation of the output polarization induced by the difference of phase modulation depth along the crystallographic axes of the modulator. We study two consequences of this polarization modulation in the fiber setups, limiting the performance of high sensitivity measurement devices. The first one is its partial conversion into a residual amplitude modulation (RAM) within any component presenting polarization dependent losses (PDL). The second one is a new effect that consists of the distortion of the signal detected at the output of a fiber cavity. The theoretical expressions of the detected signals are computed in each case.
