Numerical study of the time-delay signature in chaos optical injection system with phase-conjugate feedback

Optik ◽  
2019 ◽  
Vol 179 ◽  
pp. 71-75
Author(s):  
Penghua Mu ◽  
Pengfei He ◽  
Qiaoli Liu ◽  
Rui Wang
Keyword(s):  
Time Delay ◽  
Numerical Study ◽  
Optical Injection ◽  
Injection System ◽  
Phase Conjugate

scholarly journals Concealment of Chaos Time-Delay Signature Through Phase-Conjugate Feedback and Chaos Optical Injection

2017 ◽  
Vol 9 (5) ◽  
pp. 1-8 ◽  
Author(s):  
Penghua Mu ◽  
Wei Pan ◽  
Lianshan Yan ◽  
Bin Luo ◽  
Xihua Zou
Keyword(s):  
Time Delay ◽  
Optical Injection ◽  
Phase Conjugate

Numerical study of time delay singularly perturbed parabolic differential equations involving both small positive and negative space shifts

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Subal Ranjan Sahu ◽  
Jugal Mohapatra
Keyword(s):  
Time Delay ◽  
Numerical Study ◽  
Singularly Perturbed ◽  
Parabolic Differential Equations ◽  
Small Space ◽  
First Order ◽  
Taylor Series Approximation ◽  
Backward Euler ◽  
Differential Difference Equation ◽  
Negative Space

Abstract A time dependent singularly perturbed differential-difference equation is considered. The problem involves time delay and general small space shift terms. Taylor series approximation is used to expand the space shift term. A robust numerical scheme based on the backward Euler scheme for the time and classical upwind scheme for space is proposed. The convergence analysis is carried out. It is observed that the proposed scheme converges almost first order up to a logarithm term and optimal first order in space on the Shishkin and Bakhvalov–Shishkin mesh, respectively. Numerical results confirm the efficiency of the proposed scheme, which are in agreement with the theoretical bounds.

The Role of Master Laser with Feedback in Time-Delay Signature Suppression of Semiconductor Laser Subject to Chaotic Optical Injection

2017 ◽  
Vol 27 (11) ◽  
pp. 1750169 ◽  
Author(s):  
Liyue Zhang ◽  
Wei Pan ◽  
Penghua Mu ◽  
Xiaofeng Li ◽  
Shuiying Xiang ◽  
...  
Keyword(s):  
Time Delay ◽  
Semiconductor Laser ◽  
Optical Feedback ◽  
Bias Current ◽  
Optical Injection ◽  
Strength Parameter ◽  
Master Laser ◽  
Feedback Strength ◽  
Chaotic Signals

The important role of parameters in master laser with optical feedback for the elimination of time-delay (TD) signature in semiconductor laser subject to chaotic optical injection is investigated systemically. The experimental results show that TD signature suppressed chaotic signals can be credibly generated by increasing the feedback strength of the master laser, which is quite different from the trends observed in semiconductor laser (SL) with optical feedback. Systematically numerical analysis is also carried out as a validation, and it is shown that with low bias current and strong feedback strength, parameter regions contributing to successful TD suppression are much wider. Furthermore, it is shown that the influence of frequency detuning in TD concealment will change with the increase of feedback strength. All the numerical results are in perfect accordance with experimental observation.

Study to Suppress Time Delay Signature of Chaotic Carrier Utilizing Chaotic Optical Injection

2016 ◽  
Vol 22 (3) ◽  
pp. 289-297
Author(s):  
高飞 GAO Fei ◽  
李念强 LI Nian-qiang ◽  
张力月 ZHANG Li-yue ◽  
欧阳康 OUYANG Kang
Keyword(s):  
Time Delay ◽  
Optical Injection ◽  
Chaotic Carrier

Time-delay concealment and complexity enhancement of an external-cavity laser through optical injection

2015 ◽  
Vol 40 (19) ◽  
pp. 4416 ◽  
Author(s):  
Nianqiang Li ◽  
Wei Pan ◽  
A. Locquet ◽  
D. S. Citrin
Keyword(s):  
Time Delay ◽  
External Cavity ◽  
Optical Injection ◽  
External Cavity Laser ◽  
Cavity Laser

Time-delay Fizeau phase-conjugate interferometer

1993 ◽  
Vol 32 (9) ◽  
pp. 1578 ◽  
Author(s):  
Guanglu Yang ◽  
Azad Siahmakoun
Keyword(s):  
Time Delay ◽  
Phase Conjugate

Time-delay-signature-suppressed broadband chaos generated by scattering feedback and optical injection

2018 ◽  
Vol 57 (22) ◽  
pp. 6314 ◽  
Author(s):  
Jianzhong Zhang ◽  
Mengwen Li ◽  
Anbang Wang ◽  
Mingjiang Zhang ◽  
Yongning Ji ◽  
...  
Keyword(s):  
Time Delay ◽  
Optical Injection
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