论文标题
分散二次腔中的参数局部模式和呼吸器
Parametric localized patterns and breathers in dispersive quadratic cavities
论文作者
论文摘要
我们研究了在偶发共振的色散光学参数振荡器中产生的局部模式的形成。它们是通过连接连续波和图灵图案状态的前部的锁定形成的。这种局部模式可以看作是嵌入在均匀周围的图案的slug。它们是根据同型蛇形结构来组织的,该结构保留在系统的控制参数的修饰下。我们表明,在存在相不匹配的情况下,局部模式可以经历振荡的不稳定性,使它们以复杂的方式呼吸。
We study the formation of localized patterns arising in doubly resonant dispersive optical parametric oscillators. They form through the locking of fronts connecting a continuous-wave and a Turing pattern state. This type of localized pattern can be seen as a slug of the pattern embedded in a homogeneous surrounding. They are organized in terms of a homoclinic snaking bifurcation structure, which is preserved under the modification of the control parameter of the system. We show that, in the presence of phase mismatch, localized patterns can undergo oscillatory instabilities which make them breathe in a complex manner.