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Combination of anticipated and isochronous synchronization in coupled semiconductor lasers system

Liang Wu·Shiqun Zhu·Yun Ni
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Abstract

Combination of two basic types of synchronization, anticipated and isochronous synchronization, is investigated numerically in coupled semiconductor lasers. Due to the combination, a synchronization of good quality can be obtained. We study the dependence of the lag time between two lasers and the synchronization quality on the converse coupling retardation time $τ_{c21}$. When $τ_{c21}$ is close to the difference of external cavity round trip time $τ$ and coupling retardation time $τ_{c12}$, the combination of anticipated and isochronous synchronization may produce a better synchronization, with a lag time proportional to $τ_{c21}$. When $τ_{c21}$ is largely different from $τ-τ_{c12}$, the combination is noneffective and even negative in some cases, with a lag time independent of $τ_{c21}$.

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Liang Wu, Shiqun Zhu, Yun Ni. 2004-09-27. Combination of anticipated and isochronous synchronization in coupled semiconductor lasers system. https://arxiv.org/abs/nlin/0409056

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