Effect of the dispersion of Verdet constant upon the sensitivity of an optical current sensor

摘要

The effect of the dispersion of Verdet constant of ZF-7 optical glass upon the sensitivity of a bulk-glass optical current sensor are theoretically analyzed taking the Jones' Matrix as a mathematical tool and simulated with a computer. The investigation results show that the dispersion will obviously affect the scale factor of the current sensor. Therefore, it is necessary to stabilize the driving current and the ambient temperature of the optical source by some technical means. These results might be useful for the researchers and designers working in the optical current transforming techniques area.