One has been pioneering for forty years and is considered among the founders of the photonic chip. The other, a pioneer of the present time, is at the forefront of innovation in photonics today. We brought them together, emeritus professor Meint Smit and young and up-and-coming talent Weiming Yao, for a conversation about the challenges in photonics then and now. About believing in your vision, competition among scientists and how everything always takes a factor pi more time than you think. Read more  [Source:]