三能级激光器的突变行为

本文描写了有注入外场和可饱和吸收体的三能级单模激光器于阈值附近的行为.定量的计算表明:激光电场方程的非线性,特别是由于外场的注入,使得激光定态具有标准尖点突变流形.最后讨论了尖点突变流形的物理意义,给出了产生光学双稳态的条件.

On catastrophe behavior of the three-level laser

The behavior of the three-level single-mode laser in the presence of an applied field and a saturable absorber is revealed near the losing -threshold. It is shown by quantitatively calculating that nonlinearity of laser field and introduction of applied field cause the correspondence of steady states of the laser with the canonical cusp catastrophe manifold. In this paper the physical meaning of the cusp catastrophe manifold is explained in more detail. The quantitative condition for optical bistability generation is given.