Aviad Y, Reidler I, Kinzel W, Kanter I, Rosenbluh M
Jack and Pearl Resnick Institute for Advanced Technology, Department of Physics, Bar-Ilan University, Ramat-Gan 52900, Israel.
Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Aug;78(2 Pt 2):025204. doi: 10.1103/PhysRevE.78.025204. Epub 2008 Aug 19.
Semiconductor lasers with optical feedback have chaotically pulsating output behavior. When two similar chaotic lasers are optically coupled, they can become synchronized in their optical fluctuations. Here we show that the synchronization is not only in the amplitude and in the timing of the pulses but that the short pulses are also phase coherent with each other. This is true even when the lasers are separated by distances much larger than their coherence length.
具有光反馈的半导体激光器具有混沌脉动输出行为。当两个相似的混沌激光器进行光耦合时，它们的光波动可以实现同步。在此我们表明，这种同步不仅体现在脉冲的幅度和时间上，而且短脉冲之间还彼此相位相干。即便激光器之间的距离远大于其相干长度，情况依然如此。
