Numerical study on dynamics-dependent synchronization in mutually-coupled lasers with asymmetric feedback

被引：2
作者：
Ohara, Shoma [1 ]
Kanno, Kazutaka [1 ]
Uchida, Atsushi [1 ]
机构：
[1] Saitama Univ, Dept Informat & Comp Sci, Sakura Ku, 255 Shimo Okubo, Saitama, Saitama 3388570, Japan
来源：
IEICE NONLINEAR THEORY AND ITS APPLICATIONS | 2019年 / 10卷 / 01期
基金：
日本学术振兴会;
关键词：
synchronization; chaos; nonlinear dynamics; semiconductor lasers; PHOTONIC INTEGRATED-CIRCUITS; COHERENCE COLLAPSE; CHAOTIC ITINERANCY; SEMICONDUCTOR; GENERATOR;
D O I：
10.1587/nolta.10.60
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
We numerically investigate the change in synchronization property in different frequency components associated with laser dynamics, which is termed dynamics-dependent synchronization, in two mutually-coupled semiconductor lasers. We introduce an optical amplifier to implement asymmetric feedback, and we change the feedback strength of one of the two coupled lasers to observe dynamics-dependent synchronization. In-phase synchronization is observed for the original signals, while anti-phase synchronization is found for the low-pass-filtered signals, in the presence of low-frequency fluctuation dropouts. We analyze dynamics-dependent synchronization by observing temporal changes in the short-term cross-correlation and the local optical frequency detuning.
引用
收藏
页码：60 / 73
页数：14
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