环形腔中激光振荡输出的横向斑图及向光学湍流的转变

THE TRANSVERSE PATTERN OF LASER OSCILLATION OUTPUT IN A RING CAVITY AND THE TRANSITION TO OPTICAL TURBULENCE

在研究环形腔中激光振荡输出的分岔与混沌的基础上 ,采用耦合映象格子模型研究了其空间扩展系统的横向效应 .数值模拟表明 ,随着参数的改变 ,空间扩展系统由均匀稳态、行波解向时空混沌演化 .在一定的参数条件下 ,空间扩展系统从光场取入射平面波 (均匀分布 )开始 ,经对称破缺向光学湍流转变 .

Based on the earlier theoretical work on the bifurcation and chaos of laser oscillation output in a ring cavity, we present in this paper a study of transverse effects in the spatially extended system. Numerical simulations show that the spatially extended system has the homogeneous stationary states, the traveling wave solutions and the spatiotemporal chaos states with the change of its parameters. We also find a transition to turbulence via symmetry breaking at the definite system parameters when considering incident light as plane wave (homogeneous distribution).