Ling Dongxiong, Chen Junruo, Li Junchang
Kunming University of Science and Technology, China.
Appl Opt. 2006 May 1;45(13):3158-62. doi: 10.1364/ao.45.003158.
A Gaussian-reflectivity mirror resonator is proposed to achieve high-quality laser beams. To analyze the laser fields in a Gaussian-reflectivity mirror resonator, the diffraction integral equations of a Gaussian-reflectivity mirror resonator are converted to the finite-sum matrix equations. Consequently, according to the Fox-Li laser self-reproducing principle, we describe the mode fields and their losses in the proposed resonator as eigenvectors and eigenvalues of a transfer matrix. The conclusion can be drawn from the numerical results that, if a Gaussian-reflectivity mirror is adopted for a plano-concave resonator, a fundamental mode can easily be obtained from a transverse-flow CO2 laser and high-quality laser beams can be expected.
提出了一种高斯反射率镜谐振器以实现高质量激光束。为了分析高斯反射率镜谐振器中的激光场，将高斯反射率镜谐振器的衍射积分方程转换为有限和矩阵方程。因此，根据福克斯 - 李激光自再现原理，我们将所提出谐振器中的模式场及其损耗描述为传输矩阵的特征向量和特征值。从数值结果可以得出结论，对于平凹谐振器，如果采用高斯反射率镜，则可以很容易地从横向流动二氧化碳激光器中获得基模，并有望获得高质量激光束。
