Oliver Neus, Jüngling Thomas, Fischer Ingo
Instituto de Física Interdisciplinar y Sistemas Complejos, IFISC (UIB-CSIC), Campus Universitat de les Illes Balears, E-07122 Palma de Mallorca, Spain.
Phys Rev Lett. 2015 Mar 27;114(12):123902. doi: 10.1103/PhysRevLett.114.123902. Epub 2015 Mar 26.
We experimentally study consistency properties of a semiconductor laser in response to a coherent optical drive originating from delayed feedback. The laser is connected to a short and a long optical fiber loop, switched such that only one is providing input to the laser at a time. This way, repeating the exact same optical drive twice, we find consistent or inconsistent responses depending on the pump parameter and we relate the kind of response to strong and weak chaos. Moreover, we are able to experimentally determine the sub-Lyapunov exponent, underlying the consistency properties.
我们通过实验研究了半导体激光器对源自延迟反馈的相干光驱动的响应的一致性特性。该激光器连接到一个短光纤环和一个长光纤环，切换方式使得一次只有一个光纤环向激光器提供输入。通过这种方式，将完全相同的光驱动重复两次，我们发现根据泵浦参数会出现一致或不一致的响应，并且我们将响应类型与强混沌和弱混沌联系起来。此外，我们能够通过实验确定作为一致性特性基础的亚李雅普诺夫指数。
