石英玻璃非线性极化条件研究

A STUDY OF THE NONLINEAR POLARIZATION CONDITIONS OF SILICA

实验研究表明：石英玻璃的非线性热极化在很大程度上取决于极化的温度和静电场（或直流电场），并有一温度阈值。对于光纤非线性极化的激光预处理，对应的是一个平均功率来度阈值。对两者作了适当的分析和比较。

It is experimentally shown that temperature and static electrical field (or dir-ect current field)play important roles in the nonlinear polarization of silica andthere is a temperature threshold.For an optical fiber,the nonlinear polarizationdepends on the average power density in the preparing optical fiber and there isan average power density threshold.Finally,some theoretical analyses are made aboutthem.