摘要
提出了在干涉型光纤传感器阵列中将各传感器的最佳输入偏振态反馈控制信号叠加用于阵列最佳输入偏振态控制的方案，并对阵列各单元最佳输入偏振态的较差分布时的控制效果进行了理论分析。对达到这一较差分布的概率也进行了计算。分析表明，该方案简单易行。经过信号处理能使各个光纤传感器在降低信噪比的情况下使可见度均达到最大值１，从而消除了阵列中各单元的偏振态衰落。
A novel method is presented to control the optimum input polarization of the interferometric fiber optic sensor arrays by the sum of each sensor′s feedback signal. The minimum visibility of the element in the array under control is calculated, and the probability to reach this situation is estimated. The analyses show that the method is both simple and feasible. Each sensor′s visibility can approach to 1 by signal process, which eliminates the polarization induced fading in each sensor of the array.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1998年第9期1243-1248,共6页
Acta Optica Sinica
基金
国家自然科学基金
