中国激光, 2006, 33 (suppl): 244, 网络出版: 2006-04-21
高斯镜谐振腔产生的激光光束的M2因子及传输特性
M2 Factor and Propagation Properties of Beams Generated by Gaussian Mirror Resonator
激光技术 高斯镜 M2因子 近轴ABCD光学系统 传输特性 laser technology Gaussian mirror M2 factor near-axis ABCD system propagation property
摘要
基于二阶矩阵方法推导了高斯镜谐振腔产生光束的M2因子表达式,讨论了高斯镜的峰值反射率和膜斑半径对M2因子的影响,给出了不同峰值反射率和膜斑半径下的M2因子曲线。把高斯镜谐振腔产生的光束当作一个整体光束来处理,利用标量衍射理论和矩阵光学理论,讨论了通过光阑效应可以忽略的ABCD光学系统的传输特性。并给出了在自由空间传输不同位置的归一化光强分布曲线。
Abstract
The expression of the M2 factor of the beam generated by Gaussian mirror resonator is derived based on the two-order matrix method, and the effects of the peak reflectivity value and the radius of the light spot on the film of the Gaussian mirror on the M2 factor are explored. The curves of the M2 factor are plotted with different peak reflectivity values and the radii of the light spot on the film. Integrating the whole beams from the Gaussian mirror resonator, the propagation property of the beam through an ABCD system with the diaphragm effect neglected is discussed, based on scalar diffraction theory and matrix optics theory. The curve of normalized optical intensity distribution versus different positions in free-space propagation is plotted.
邓德刚, 易葵, 邵建达, 范正修. 高斯镜谐振腔产生的激光光束的M2因子及传输特性[J]. 中国激光, 2006, 33(suppl): 244. 邓德刚, 易葵, 邵建达, 范正修. M2 Factor and Propagation Properties of Beams Generated by Gaussian Mirror Resonator[J]. Chinese Journal of Lasers, 2006, 33(suppl): 244.