Study brings artificial neuron 10,000 times faster

A report published in Advanced Photonics indicates that a team of researchers from France, the United States and Germany arrived at an artificial neuron 10,000 times faster than a biological specimen capable of efficiently managing communication oscillations using quantum lasers in a waterfall.

According to those responsible for the research, for example in fiber optic technologies, where many space-time fluctuations can occur in transoceanic systems, a sudden magnetic wave is an extreme event that must be suppressed because it is able to change components related to physical layer or interrupt the sending of private messages.

In short, it is as if a water spout, coming from a high point of a river, hits swimmers many kilometers below. Thus, ways to contain it would be sought by those who wanted to avoid the changes that resulted from its creation. This is the role of scientists in improving experiences with artificial data transmission technologies.

In combating any anomalies, in this case, pulse excitations (small momentary increase in polarization current) act as a response to disturbances, emphasizes Frédéric Grillot, professor at the University of New Mexico, eliminating a ‘butterfly effect’. unwanted.

Then the team applied these excitations, adds Olivier Spitz of Télécom Paris, and got the desired effects.

Controlling the uncontrollable

Cascade quantum lasers have been used in many industrial applications, such as spectroscopy (study of the interaction between electromagnetic radiation and matter), optical countermeasures and open-space communication – which have much to gain from the potential of the novelty compared to traditional diode systems , requiring more complex techniques to obtain neuromorphic properties.

Therefore, if, in order to replicate the different biological neuronal responses, it is also necessary to interrupt regular succession of bursts corresponding to the neuronal activity, fine adjustment of the modulation and frequency would allow the control of the time intervals between peaks – exactly what the team achieved with the help of cascading quantum lasers.

Here, giant pulses that characterize so-called extreme events can contribute to the sudden and acute explosions necessary for communication in neuromorphic systems, inspired by the brain’s powerful math skills.

“Their advantage over diode lasers comes from the electronic transitions of sub-picoseconds between the conduction band states (subbands) and a much shorter carrier life than that of the photon,” explains Grillot. That is, they are quick to spot problems and just as agile to correct them without disrupting the normal operation of the systems.

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