基于磁场设计原理及法拉第隔离器对高功率的需求,提出了一种具有径向补偿特性的永磁系统(RCPMS),分析了其磁场分布不均匀度对激光偏振态旋转角度(LPR)的影响,以及LPR的变化对法拉第隔离器性能的影响。研究结果表明,在RCPMS中,LPR的变化量减小至未补偿情况下的20%,FI的退偏度降低了10倍,这对于FI应用在高功率激光系统具有重要意义。 Based on the principle of magnetic field design and the demand of high power for Faraday isolators, a permanent magnet system (RCPMS) with radial compensation was proposed. The influence of the magnetic field distribution on the laser polarization rotation angle (LPR) was analyzed , And the impact of LPR changes on the Faraday isolator performance. The results show that in the RCPMS, the variation of LPR is reduced to 20% without compensation, and the de-skewness of FI is reduced by 10 times, which is significant for the application of FI in high power laser system.