Silicon photonics (microchip lasers and particle accelerators) is an active area of research that has had some promising improvements lately. Research like thi

Silicon photonics (microchip lasers and particle accelerators) is an active area of research that has had some promising improvements lately. Research like this is likely to result in a laser miniaturization breakthrough like that of MEMs sensors, which will have big impacts if the money and energy cost of a putting a laser on a device drops to near zero. Great talk on the state of the art: https://www.youtube.com/watch?v=t5EPeuLxaE0 https://www.youtube.com/watch?v=t5EPeuLxaE0