The electronics industry in Taiwan has shifted its emphasis from consumer- to information-based products. It is enjoying the bulk of the world market in computer motherboards, keyboards, scanners and PC monitors.Optoelectronics is a growing sub-group within information-based electronics. In addition to the established areas, other technologies such as optical storage, optical signal processing, optical switching and transmission are emerging. Research efforts at universities and research institutions are strongly supported by the official bodies of the government. The articles collected in this volume are contributed by the most active researchers in the area of optics and photonics in Taiwan. The subject areas covered such as Optical Materials, Devices and Systems are by no means representative of the breadth nor depth of optical research in Taiwan. Instead, they offer a snapshot of the ongoing work that will lead to success in the commercial world in future.