TY - JOUR
T1 - Dynamics-dependent synchronization in on-chip coupled semiconductor lasers
AU - Ohara, Shoma
AU - Dal Bosco, Andreas Karsaklian
AU - Ugajin, Kazusa
AU - Uchida, Atsushi
AU - Harayama, Takahisa
AU - Inubushi, Masanobu
N1 - Funding Information:
A.U. acknowledges support from Grants-in-Aid for Scientific Research from Japan Society for the Promotion of Science (JSPS KAKENHI Grant No. JP16H03878). The work was done while T. Harayama was at NTT Corporation.
Publisher Copyright:
© 2017 American Physical Society.
PY - 2017/9/18
Y1 - 2017/9/18
N2 - Synchronization properties of chaotic dynamics in two mutually coupled semiconductor lasers with optical feedback embedded in a photonic integrated circuit are investigated from the point of view of their dynamical content. A phenomenon in which the two lasers can show qualitatively different synchronization properties according to the frequency range of investigation and their nonlinear dynamics is identified and termed dynamics-dependent synchronization. In-phase synchronization is observed for original signals and antiphase synchronization is observed for low-pass filtered signals in the case where one of the lasers shows chaotic oscillations while the other laser exhibits low-frequency fluctuations dynamics. The experimental conditions causing the synchronization states to vary according to the considered frequency interval are studied and the key roles of asymmetric coupling strength and injection currents are clarified.
AB - Synchronization properties of chaotic dynamics in two mutually coupled semiconductor lasers with optical feedback embedded in a photonic integrated circuit are investigated from the point of view of their dynamical content. A phenomenon in which the two lasers can show qualitatively different synchronization properties according to the frequency range of investigation and their nonlinear dynamics is identified and termed dynamics-dependent synchronization. In-phase synchronization is observed for original signals and antiphase synchronization is observed for low-pass filtered signals in the case where one of the lasers shows chaotic oscillations while the other laser exhibits low-frequency fluctuations dynamics. The experimental conditions causing the synchronization states to vary according to the considered frequency interval are studied and the key roles of asymmetric coupling strength and injection currents are clarified.
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U2 - 10.1103/PhysRevE.96.032216
DO - 10.1103/PhysRevE.96.032216
M3 - Article
C2 - 29346910
AN - SCOPUS:85029829700
VL - 96
JO - Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
JF - Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
SN - 1063-651X
IS - 3
M1 - 032216
ER -