FiO 2016—the 100th OSA Annual Meeting—encompasses the breadth of optical science and engineering and provides an atmosphere that fosters the exchange of information between those working on fundamental research and those looking for solutions to engineering problems. Special symposia and other major events further highlight major advances in many selected areas. It is joined by the Annual Meeting of the Division of Laser Science of the American Physical Society, which presents the latest work on laser applications and development, spanning a broad range of topics in physics, biology and chemistry.