Lights could be the future of the internet and data transmission

https://phys.org/news/2023-07-future-internet-transmission.html

"light-fidelity, underwater communications, moderate- to high-speed photonic interconnects and IoT... release high-speed photonic sources using metal-halide perovskite semiconductors researched with LEDs excellent optoelectronic properties, low-cost, reduce energy,compact, improved speed... perovskite emitters on silicon substrates also paves the way for their integration with micro-electronics platforms, presenting new opportunities for seamless integration and advancement in the field of data communications"