Spectral properties and synchronization scenarios of two mutually delay-coupled semiconductor lasers

被引：15

作者：

Arroyo-Almanza, D. A. ^{[1
]}

Pisarchik, A. N. ^{[1
]}

Fischer, I. ^{[2
]}

Mirasso, C. R. ^{[2
]}

Soriano, M. C. ^{[2
]}

机构：

[1] Ctr Invest Opt, Leon 37150, Mexico

[2] IFISC CSIC UIB, E-07122 Palma De Mallorca, Spain

来源：

OPTICS COMMUNICATIONS | 2013年 / 301卷

关键词：

Semiconductor laser; Low frequency fluctuation; Synchronization; Optical injection; Nonlinear dynamics; Chaos; LOW-FREQUENCY-FLUCTUATIONS; RANDOM BIT GENERATION; OPTICAL FEEDBACK; CHAOS SYNCHRONIZATION; DYNAMICS; MODE; NOISE;

D O I：

10.1016/j.optcom.2013.03.040

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We experimentally study the intensity dynamics and the optical spectra of two similar mutually delay-coupled semiconductor lasers. While changing two relevant parameters of the coupled system, namely the bias currents and the coupling strength of the lasers, we observe significant modifications in the laser emission characterized via optical spectra, laser intensity dynamics, and cross-correlation functions. We find distinct synchronization scenarios for two bias currents: 1.02 and 1.25 times the threshold bias current of the solitary laser. Optical spectra in both cases strongly depend on the coupling strength between the lasers. For the low bias current and strong coupling, the lasers exhibit dynamical bistability, i.e. the coexistence of low-frequency fluctuations and stable continuous-wave emission. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：67 / 73

页数：7

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