ilicon photonics is a technology that uses light (photons) instead of electricity (electrons) to transmit data. It combines silicon-based chip-making techniques with optical communication, allowing for faster, more efficient data transfer over longer distances. For AI data centers, where millions of GPUs need to work together on massive datasets (think training generative AI models like ChatGPT or creating simulations), this is a game-changer. Traditional copper-based electrical connections struggle with speed, heat, and energy inefficiency as scale increases, whereas silicon photonics sidesteps these limits.