Emulation of Spiking Response and Spiking Frequency Property in VCSEL-Based Photonic Neuron

Emulation of Spiking Response and Spiking Frequency Property in VCSEL-Based Photonic Neuron

Blog Article

The dynamical response properties of photonic neuron based on vertical-cavity surface emitting lasers (VCSELs) subject to orthogonal polarized optical pulse injection stimuli have been numerically investigated.Based on the well-known spin flip model, we first reproduce Decoration some experimental findings of neuron-like dynamics in VCSELs, such as phasic spiking with a single abrupt pulse, and tonic spiking with multiple periodic pulses.Besides, we further go beyond in three directions and obtain several novel results.The operating parameter ranges corresponding to different neuron-like dynamics are identified by extensive bifurcation analysis.In addition, the effect of the time-varying pump current on the neuron-like dynamics for VCSELs under given optical injecting pulse strength is also discussed.

For a given pump current, the spiking frequency dependence on the stimuli strength is further revealed in VCSELs with time-varying optical pulse injection.Such controllable neuron-like response dynamics and spiking frequency dependence in Activity Table VCSELs are interesting and valuable for ultrafast photonic neuromorphic systems and neuron-inspired photonic information processing.