二维无序介质中横磁模的谱线宽度随抽运强度的变化特性  

Dependence of spectral width of TM-polarization lasing modes on pumping intensity in two-dimensional random media

作　　者：王可嘉[1] 张清泉[1] 吕健滔[1] 杜泽明[1] 刘劲松[1] 

机构地区：[1]华中科技大学

出　　处：《物理学报》2008年第5期2941-2945,共5页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:60778003)资助的课题~~

摘　　要：基于随机激光时域理论,数值研究了二维随机激光器中横磁模式的输出光谱线宽度,获得了谱线宽度与抽运强度的关系曲线,由此曲线可以计算横磁模式的很多特征参数.从谱线宽度的角度来看,横磁模式的输出特性结果与已有的横电模式结果相比,横磁模式具有较好的输出特性.The spectral width of transverse magnetic （TM） lasing modes in two-dimensional random media is theoretically investigated by using the time-dependent theory. The evolution curve of the spectral width of TM-polarization modes versus the pump intensity is obtained from which one can calculate some characteristic parameters of the emission, e.g. the threshold. The results show that, from the view of spectral width, the emission of the TM-polarization lasing modes have better out-put property than that obtained previously with TE-polarization.

关 键 词：随机激光器 偏振 谱线宽度 无序介质中的光学效应 

分 类 号：TN24[电子电信—物理电子学]