Neuromorphic dynamics with optically injected quantum dot lasers

Dillane, Michael; Robertson, Joshua; Peters, M.G.; Hurtado, Antonio; Kelleher, Bryan

doi:10.1140/epjb/e2019-90733-6

Cited by 12 publications

(1 citation statement)

References 55 publications

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“…This architecture also supports interesting neuromorphic applications such as memories or inter-neuron communications 21,22 . When additional physical mechanisms are taken into account beyond only field and carrier dynamics, other types of excitable dynamics may even arise, as in 23,24 .…”

Section: Introductionmentioning

confidence: 99%

Success rate analysis of the response of an excitable laser to periodic perturbations

Tiana-Alsina,

Garbin,

Barland

et al. 2020

Preprint

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We use statistical tools to characterize the response of an excitable system to periodic perturbations. The system is an optically injected semiconductor laser under pulsed perturbations of the phase of the injected field. We characterize the laser response by counting the number of pulses emitted by the laser, within a time interval, ∆T , that starts when a perturbation is applied. The success rate, SR(∆T ), is then defined as the number of pulses emitted in the interval ∆T , relative to the number of perturbations. The analysis of the variation of SR with ∆T allows to separate a constant lag of technical origin and a frequency-dependent lag of physical and dynamical origin. Once the lag is accounted for, the success rate clearly captures locked and unlocked regimes and the transitions between them. We anticipate that the success rate will be a practical tool for analyzing the output of periodically forced systems, particularly when very regular oscillations need to be generated via small periodic perturbations.

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Section: Introductionmentioning

confidence: 99%

Success rate analysis of the response of an excitable laser to periodic perturbations

Tiana-Alsina,

Garbin,

Barland

et al. 2020

Preprint

View full text Add to dashboard Cite

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Optical information processing using dual state quantum dot lasers: complexity through simplicity

2021

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We review results on the optical injection of dual state InAs quantum dot-based semiconductor lasers. The two states in question are the so-called ground state and first excited state of the laser. This ability to lase from two different energy states is unique amongst semiconductor lasers and in combination with the high, intrinsic relaxation oscillation damping of the material and the novel, inherent cascade like carrier relaxation process, endows optically injected dual state quantum dot lasers with many unique dynamical properties. Particular attention is paid to fast state switching, antiphase excitability, novel information processing techniques and optothermally induced neuronal phenomena. We compare and contrast some of the physical properties of the system with other optically injected two state devices such as vertical cavity surface emitting lasers and ring lasers. Finally, we offer an outlook on the use of quantum dot material in photonic integrated circuits.

show abstract

Success rate analysis of the response of an excitable laser to periodic perturbations

Tiana-Alsina

Garbin

Barland

et al. 2020

Chaos: An Interdisciplinary Journal of Nonlinear Science

View full text Add to dashboard Cite

We use statistical tools to characterize the response of an excitable system to periodic perturbations. The system is an optically injected semiconductor laser under pulsed perturbations of the phase of the injected field. We characterize the laser response by counting the number of pulses emitted by the laser, within a time interval, ΔT, that starts when a perturbation is applied. The success rate, SR(ΔT), is then defined as the number of pulses emitted in the interval ΔT, relative to the number of perturbations. The analysis of the variation of SR with ΔT allows separating a constant lag of technical origin and a frequency-dependent lag of physical and dynamical origin. Once the lag is accounted for, the success rate clearly captures locked and unlocked regimes and the transitions between them. We anticipate that the success rate will be a practical tool for analyzing the output of periodically forced systems, particularly when very regular oscillations need to be generated via small periodic perturbations.

show abstract

Neuromorphic dynamics with optically injected quantum dot lasers

Cited by 12 publications

References 55 publications

Success rate analysis of the response of an excitable laser to periodic perturbations

Success rate analysis of the response of an excitable laser to periodic perturbations

Optical information processing using dual state quantum dot lasers: complexity through simplicity

Success rate analysis of the response of an excitable laser to periodic perturbations

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