摘要
为提高测量精度,提出了一种利用光纤光栅测量磁场的方法。依据磁场与光纤光栅偏振相关损耗成正比的理论,运用正交共轭反射镜来消除线性双折射,以Muller矩阵为基本方法,设计磁场测量原理图。数值仿真表明,通过正交共轭反射镜可以大幅度减少测量过程中的线性双折射,从而提高磁场的测量精度。
In order to improve the accuracy and practicality of the measurement system,the paper puts forward a new method to measure magnetic field.Based on the magnetic field proportional to the polarization dependent loss of optical fiber grating, using conjugate quadrature mirror to eimination of linear birefringence, based on the muller matrix method,designed magnetic field measurement schematics.Numerical simulations show that the conjugate quadrature mirror can significantly reduce the linear birefringence and improve the measurement accuracy of magnetic field in the measurement process.
出处
《光通信技术》
CSCD
北大核心
2013年第5期50-52,共3页
Optical Communication Technology
基金
陕西省自然科学基金(2011JM8038)资助
关键词
偏振相关损耗
光纤光栅
正交共轭反射镜
磁场
polarization dependent loss
fiber bragg grating
conjugate quadrature mirror
magnetic field
