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

页码：60 / 73

页数：14

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