Photonic implementation of artificial synapses in ultrafast laser inscribed waveguides in chalcogenide glass

Simple and direct prototyping methods are ideal for large-scale delivery of cognitive photonic hardware. Here, we choose ultrafast laser writing as a fabrication technique to later demonstrate all-optical synaptic-like performance along the laser-written waveguides in chalcogenide glass. Neuronal communication protocols, such excitatory inhibitory responses, temporal summations, spike-timing-dependent plasticity, shown glass chip. This work manifests potential fully integrated chips based on principles by single-step procedures.