The past few years have witnessed a staggering increase of information traffic, growing incessantly with the complexity and quality of the services provided to users around the world. A remarkable example can be found in the social media history: starting from Facebook, people swept to Instagram, and at present one of the most fashionables media is TikTok. The paradigm enabling this evolution has been “centralized computation”, the data processing being processed in data centres, where traffic is localized, and then delivered to the end users. In this context, the role of short-range interconnects is becoming comparable or even greater than that of telecommunications, leading to the requirement of fast, low-power optoelectronic devices.