Cascadable Neuron-Like Spiking Dynamics in Coupled VCSELs Subject to Orthogonally Polarized Optical Pulse Injection

Xiang, Shui Ying; Zhang, Hao; Guo, Xing; Li, Jia Fu; Wen, Ai Jun; Pan, Wei; Hao, Yue

doi:10.1109/jstqe.2017.2678170

Cited by 54 publications

(16 citation statements)

References 46 publications

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“…It has already been shown that, the bifurcation diagram is a useful tool to characterize different neuron-like dynamics 20,22 . The phasic spiking and tonic spiking have been identified in conventional VCSEL 20 .…”

Section: Resultsmentioning

confidence: 99%

“…The phasic spiking and tonic spiking have been identified in conventional VCSEL 20 . We also present the bifurcation diagram, i.e., the maximum of I x as a function of k injx , in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Interestingly, numerical and experimental investigations demonstrate that, by injecting external input optical pulse (EIOP), VCSELs can reproduce different behaviors exhibited by biological neurons including phasic spiking and tonic spiking, but on a much faster timescale 15–22 . Therefore, the VCSELs can be regarded as photonic neurons in the neuromorphic systems 18,20 .…”

Section: Introductionmentioning

confidence: 99%

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Polarization-resolved and polarization- multiplexed spike encoding properties in photonic neuron based on VCSEL-SA

Zhang

Xiang

Guo

et al. 2018

Sci Rep

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The spike encoding properties of two polarization-resolved modes in vertical-cavity surface-emitting laser with an embedded saturable absorber (VCSEL-SA) are investigated numerically, based on the spin-flip model combined with the Yamada model. The results show that the external input optical pulse (EIOP) can be encoded into spikes in X-polarization (XP) mode, Y-polarization (YP) mode, or both XP and YP modes. Furthermore, the numerical bifurcation diagrams show that a lower (higher) strength of EIOP is beneficial for generating tonic (phasic) spikes; a small amplitude anisotropy contributes to wide (narrow) tonic spiking range in XP (YP) mode; a large current leads to low thresholds of EIOP strength for both XP and YP modes. However, the spike encoding properties are hardly affected by the phase anisotropy. The encoding rate is shown to be improved by increasing EIOP strength. Moreover, dual-channel polarization-multiplexed spike encoding can also be achieved in a single VCSEL-SA. To the best of our knowledge, such single channel polarization-resolved and dual-channel polarization-multiplexed spike encoding schemes have not yet been reported. Hence, this work is valuable for ultrafast photonic neuromorphic systems and brain-inspired information processing.

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Section: Resultsmentioning

confidence: 99%

“…The phasic spiking and tonic spiking have been identified in conventional VCSEL 20 . We also present the bifurcation diagram, i.e., the maximum of I x as a function of k injx , in Fig.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Polarization-resolved and polarization- multiplexed spike encoding properties in photonic neuron based on VCSEL-SA

Zhang

Xiang

Guo

et al. 2018

Sci Rep

Self Cite

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“…interconnection of these photonic neuromorphic elements has also been explored with the successful communication of fast spiking dynamics in a cascaded transmitter-receiver VCSEL configuration [43,44], and with detailed theoretical studies of multiple mutual coupling configurations [48,49]. The behavioural similarities that can be drawn between the investigated VCSEL-based neuronal models and biological neurons are what allow us to pursue these devices as candidates for artificial photonic neurons.…”

mentioning

confidence: 99%

Electrically Controlled Neuron-Like Spiking Regimes in Vertical-Cavity Surface-Emitting Lasers at Ultrafast Rates

Robertson

Wade

Hurtado

2019

IEEE J. Select. Topics Quantum Electron.

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We report experimentally on the electricallycontrolled, tunable and repeatable neuron-like spiking regimes generated in an optically-injected vertical-cavity surface-emitting laser (VCSEL) operating at the telecom wavelength of 1300 nm. These fast spiking dynamics (obtained at sub-nanosecond speed rates) demonstrate different behaviours observed in biological neurons such as thresholding, phasic and tonic spiking and spike rate and spike latency coding. The spiking regimes are activated in response to external stimuli (with controlled strengths and temporal duration) encoded in the bias current applied to a VCSEL subject to continuous wave (CW) optical injection (OI). These results reveal the prospect for fast (>7 orders of magnitude faster than neurons), novel, electrically-controlled spiking photonic modules for future neuromorphic computing platforms.

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“…In some recent cases, cascadability is used to refer to a single feedforward connection [45,50,82,83], but we argue that this approach does not conclusively demonstrate indefinite physical cascadability. The format of the upstream input can be different than that of the downstream output such that the second might not be able to drive the first.…”

Section: A Claiming Cascadability and Fan-inmentioning

confidence: 88%

Silicon Photonic Modulator Neuron

et al. 2019

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There has been a recently renewed interest in neuromorphic photonics, a field promising to access pivotal and unexplored regimes of machine intelligence. Progress has been made on isolated neurons and analog interconnects; nevertheless, this renewal has yet to produce a demonstration of a silicon photonic neuron capable of interacting with other like neurons. We report a modulator-class photonic neuron fabricated in a conventional silicon photonic process line. We demonstrate behaviors of transfer function configurability, fan-in, inhibition, time-resolved processing, and, crucially, autaptic cascadability -a sufficient set of behaviors for a device to act as a neuron participating in a network of like neurons. The silicon photonic modulator neuron constitutes the final piece needed to make photonic neural networks fully integrated on currently available silicon photonic platforms.In this work, we fabricate and demonstrate a silicon photonic modulator neuron. It consists of a balanced photodetector directly connected to a microring (MRR) modulator. We demonstrate that this device possesses the necessary capabilities of a network-compatible neuron: fan-in, high-gain optical-to-optical nonlinearity, and arXiv:1812.11898v1 [physics.app-ph]

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Cascadable Neuron-Like Spiking Dynamics in Coupled VCSELs Subject to Orthogonally Polarized Optical Pulse Injection

Cited by 54 publications

References 46 publications

Polarization-resolved and polarization- multiplexed spike encoding properties in photonic neuron based on VCSEL-SA

Polarization-resolved and polarization- multiplexed spike encoding properties in photonic neuron based on VCSEL-SA

Electrically Controlled Neuron-Like Spiking Regimes in Vertical-Cavity Surface-Emitting Lasers at Ultrafast Rates

Silicon Photonic Modulator Neuron

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