考虑不同偏振态光波模式之间存在反转粒子数共享和竞争的情况，联立求解麦克斯韦方程组与激光能级方程，分别获得了局域抽运条件下横电（TE）偏振模式与横磁（TM）偏振模式的光谱时间特性和阈值特性。结果显示，在合理选择局域抽运范围的情况下，TM偏振模式能够获得比TE偏振模式更低的阈值。TE偏振模式的峰值强度随时间演化逐渐增强后又迅速减小，这显示TE偏振模式在局域抽运区域较小的情况下被TM偏振模式压制。这些结果均不同于随机介质被全局抽运时的情形。

Considering the share and competition on the inversed population between different polarized lightwaves, the spectral time evolution and the threshold of polarized modes under local pumping are investigated by simultaneously solving Maxwell′s equations and rate equations of electronic population for both transverse magnetic (TM) and transverse electric (TE) modes. Results show that the lasing threshold of TM modes can be lower than that of TE modes when the radius of the local pumping region is suitably selected. The intensity peak of TE mode increases and then decreases quickly, which indicates that the TE mode is restrained gradually under local pumping when the local pumping region is quite small. The conclusions are different from the case of whole pumping.