从理论和实验两方面研究宽频带径向偏振光束的产生及其传输特性。分析光束时间相干性和空间相干性对径向偏振光束的产生和传输的影响。数值模拟了宽频带径向偏振光束的传播。实验上，通过径向偏振转换器，得到径向偏振光束。通过调整入射光束的传输距离来改变光束空间相干性，研究了不同空间相干度下宽频带径向偏振的传输特性。同时还考察了光束偏振度的变化，给出了偏振度发生变化的条件，理论和实验符合较好。

The method of generating broad band radially polarized beam and its propagation are researched. The relationship between generation，propagation characteristics and their coherence, i.e. temporal coherence and spatial coherence is analyzed. The propagation of broad band radially polarized beam is numerically simulated. Spatial coherence is changed by the method of modifying the distance of incident beam from xenon lamp. Polarization degree is also examined, and theoretical values agree well with experimental data.