Abstract The rapid development of artificial intelligence has stimulated the interest in novel designs photonic neural networks. As three-dimensional (3D) networks, diffractive networks (DNNs) relying on phenomena light, demonstrated their superb performance direct parallel processing two-dimensional (2D) optical data at speed light. Despite outstanding achievements, DNNs utilize centimeter-sca...

We present the design and test results of a novel data transmitter ASIC operating up to 20.48 Gbps with 4-level Pulse-Amplitude-Modulation (PAM4) for particle physics experiments. This ASIC, named GBS20, is fabricated in 65 nm CMOS technology. Two serializers share 5.12 GHz Phase Locked Loop (PLL) clock. The outputs from are combined into PAM4 signal that directly drives Vertical-Cavity-Surface...

The long-term reliability of the commercially available vertical-cavity surface-emitting laser (VCSEL) at 1310 nm wavelength is investigated. To do so, a high current accelerated life test used to evaluate VCSEL reliability. Variations properties that depend on operating condition are characterized by light-current-voltage, leakage and low-frequency noise. When aging 6 mA, 8 mA 10 maximum outpu...

We report experimentally on high-speed, tuneable photonic synaptic architectures realized with vertical cavity surface emitting lasers (VCSELs) connected in series and parallel configurations. These are able to perform the controlled weighting of fast (150 ps long) low energy ( µ W peak power) optical pulses (or spikes), permit high-speed (0.5 GHz) dynamic weight tunability, for implementation ...