Analysis of errors induced by lambda/4 wave plate in fiber-optic current sensor system

作者：Yang Rui feng^*

来源：Journal of Central South University of Technology, 2008, 15: 399-403.

DOI：10.1007/s11771-008-0495-8

• 1/4 lambda wave plate
• retardation
• polarization
• optical fiber
• Jones matrix

1/4 lambda wave plate is a key element in the fiber-optic current sensor system. When a retardation error or an orientation error of birefringence axes of 1/4 lambda wave plate with respect to the hi-bi fiber axes occurs in the 1/4 lambda wave plate, the sensor system will output a wrong result of the measured current. The contributions of these two errors to the final result of the whole system were studied and the errors functions were deduced by establishing the measurement function of the current sensor system with Jones matrixes of the optical elements. The results show that that the greater the orientation error or the retardation error, the larger the final error, and that these two errors cannot be compensated each other.

• 出版日期2008-12
• 单位中北大学