Abstract
The effect of the phase conjugate coupling on routes to chaos (mainly stable, sustained pulsating oscillations, evolves into double-period oscillation and quasi-periodic routes) in incoherent optical feedback semiconductor quantum dot laser is theoretically investigated using bifurcation diagrams, time series, attractors and inter-spike interval probability distribution. The parameter values of the coupling strength (η) and delay time (τ) (mirrors respond as fast and slow-response photorefractive mirrors) are modified to examine the sensitivity of routes to chaos with variation in the phase-conjugate mirrors. Both routes are found to be highly sensitive to the phase conjugate coupling effect. Instability and homoclinic chaotic can be observed in such a system.
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This work is supported by the Nassiriya Nanotechnology Research Laboratory (NNRL), Science College, University of Thi Qar, Iraq.
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Al Jabri, S.A., Al Husseini, H.B. Effect of phase conjugate coupled on routes to chaos in incoherent optical feedback semiconductor quantum dot laser. J Opt 52, 376–385 (2023). https://doi.org/10.1007/s12596-022-00894-0
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DOI: https://doi.org/10.1007/s12596-022-00894-0