How Chipmakers Are Using On-Chip Optical Clocks for Timing

Episode 93 of The Hardware Podcast explores a critical but often overlooked component in modern chips: the on-chip optical clock. Lucas and Luna discuss how traditional quartz oscillators are reaching their limits as chip speeds increase, and how integrated photonics are enabling tiny, stable optical clocks that can synchronize billions of transistors with picosecond precision. They dive into the work of researchers at UC Santa Barbara and imec, who have demonstrated a silicon photonics clock that consumes just 10 milliwatts while achieving timing jitter below 50 femtoseconds. The hosts explain why this matters for everything from 5G base stations to AI accelerators, and how it could reshape chip design by eliminating the need for external timing crystals. #OpticalClock #SiliconPhotonics #ChipTiming #IntegratedPhotonics #Semiconductor #Hardware #Technology #UCSantaBarbara #Imec #AIAccelerators #5G #ClockDistribution #Jitter #QuartzOscillator #Timing #FexingoBusiness #BusinessPodcast #TheHardwarePodcast Keep every episode free: buymeacoffee.com/fexingo