本文从考虑媒质的径向和轴向的非均匀性,导出了相应的变换矩阵和流图结构。应用于空气折射率梯度对激光准直的影响和不均匀泵浦引起的激光器附加衍射损耗。结果表明,轴向折射率梯度在一定条件下可以补偿径向折射率梯度的影响。

Taking radial and axial inhomogeneity of medium into consideration, we have obtained augmented transfer matrices and flow graph structures. As their applications we have studied the effect of air index gradient on laser alignment and the additional diffraction loss of laser caused by inhomogeneous pump. Results show that the axial index gradient can compensate the effect caused by radial index gradient in some cases.