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Enhanced coherence of weakly coupled lasers

机译:增强弱耦合激光器的相干性

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摘要

We present the phase-locking and coherence properties between two weakly coupled lasers. We show how the degree of coherence between the two lasers can be enhanced by nearly 1 order of magnitude after taking into account the effects of coupling on both their phases as well as their amplitudes. Specifically, correlations between synchronized spikes in the amplitude dynamics and the phase dynamics of the lasers allow for an interference pattern with a fringe visibility of 90percent, even when the coupling strength is far below the critical value and they are not phase locked.
机译:我们介绍了两个弱耦合激光器之间的锁相和相干特性。我们展示了在考虑耦合对其相位和振幅的影响之后,如何将两个激光器之间的相干度提高近1个数量级。具体地说,即使在耦合强度远低于临界值且它们没有锁相的情况下,激光器的振幅动力学和相位动力学中的同步尖峰之间的相关性也可以使干涉图具有90%的条纹可见度。

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