Conceal time-delay signature of chaotic vertical-cavity surface-emitting lasers by variable-polarization optical feedback

Xiang, Shuiying; Pan, Wei; Luo, Bin; Yan, Lianshan; Zou, Xihua; Jiang, Ning; Yang, Lei; Zhu, Hongna

doi:10.1016/j.optcom.2011.08.029

Cited by 42 publications

(27 citation statements)

References 27 publications

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“…In [23] this technique is also applied to time series generated by chaotic semiconductor lasers with optical feedback, enabling the identification of three important features of the system: feedback time delay, relaxation oscillation period, and pulsing time scale. Similar applications can be also found in [24,44,45].…”

Section: Identification Of Time Scalessupporting

confidence: 53%

Permutation Entropy and Its Main Biomedical and Econophysics Applications: A Review

Zanin

Zunino

Rosso

et al. 2012

Entropy

562

440

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Entropy is a powerful tool for the analysis of time series, as it allows describing the probability distributions of the possible state of a system, and therefore the information encoded in it. Nevertheless, important information may be codified also in the temporal dynamics, an aspect which is not usually taken into account. The idea of calculating entropy based on permutation patterns (that is, permutations defined by the order relations among values of a time series) has received a lot of attention in the last years, especially for the understanding of complex and chaotic systems. Permutation entropy directly accounts for the temporal information contained in the time series; furthermore, it has the quality of simplicity, robustness and very low computational cost. To celebrate the tenth anniversary of the original work, here we analyze the theoretical foundations of the permutation entropy, Entropy 2012, 14 1554 as well as the main recent applications to the analysis of economical markets and to the understanding of biomedical systems.

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Section: Identification Of Time Scalessupporting

confidence: 53%

Permutation Entropy and Its Main Biomedical and Econophysics Applications: A Review

Zanin

Zunino

Rosso

et al. 2012

Entropy

562

440

View full text Add to dashboard Cite

show abstract

“…As for acquiring fast random number, the TDS of chaos may cause that the randomness and statistical performance of random bits are deteriorated [5]. As a result, how to analyze and suppress the TDS of chaos in a SL-based chaotic system has been a subject of considerable research effort in recent years [17][18][19][20][21][22][23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

“…Meantime, the I-TDS in VCSELsbased chaotic systems has also been studied and reported. Xiang et al theoretically studied the concealment of I-TDS in a variablepolarization optical feedback VCSELs system [23][24][25]. We numerically investigated the I-TDS in a double variable polarization optical feedback VCSELs system and a mutually delay-coupled VCSELs (MDC-VCSELs) system [26,27].…”

Section: Introductionmentioning

confidence: 99%

Time-delay signatures hidden in the phase of chaotic output of mutually delay-coupled vertical-cavity surface-emitting lasers

Yang

et al. 2015

Optics Communications

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“…Different from EELs, the output of VCSELs generally includes two orthogonally linearly polarized components (called "X-polarized component" and "Y-polarized component") due to the weak cavity and material anisotropies. The polarization nature in VCSELs results in some novel polarization-related feedback schemes proposed such as polarization-rotated optical feedback, polarization-preserved optical feedback, and variable-polarization optical feedback [14,[29][30][31][32][33]. So far, there are many reports on the TDS suppression in such polarization-related optical feedback VCSELs chaotic systems [31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Time-delay signature of chaos in 1550 nm VCSELs with variable-polarization FBG feedback

Li¹,

Wu²,

Zhong³

et al. 2014

Opt. Express

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Based on the framework of spin-flip model (SFM), the output characteristics of a 1550 nm vertical-cavity surface-emitting laser (VCSEL) subject to variable-polarization fiber Bragg grating (FBG) feedback (VPFBGF) have been investigated. With the aid of the self-correlation function (SF) and the permutation entropy (PE) function, the time-delay signature (TDS) of chaos in the VPFBGF-VCSEL is evaluated, and then the influences of the operation parameters on the TDS of chaos are analyzed. The results show that the TDS of chaos can be suppressed efficiently through selecting suitable coupling coefficient and feedback rate of the FBG, and is weaker than that of chaos generated by traditional variable-polarization mirror feedback VCSELs (VPMF-VCSELs) or polarization-preserved FBG feedback VCSELs (PPFBGF-VCSELs).

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Conceal time-delay signature of chaotic vertical-cavity surface-emitting lasers by variable-polarization optical feedback

Cited by 42 publications

References 27 publications

Permutation Entropy and Its Main Biomedical and Econophysics Applications: A Review

Permutation Entropy and Its Main Biomedical and Econophysics Applications: A Review

Time-delay signatures hidden in the phase of chaotic output of mutually delay-coupled vertical-cavity surface-emitting lasers

Time-delay signature of chaos in 1550 nm VCSELs with variable-polarization FBG feedback

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