Abstract
Recent developments of high-power and high-quality solid-state laser systems, in particular diode-pumped Nd: YAG lasers and fiber lasers, allow the development of various kinds of laser materials processing applicationsin production industries. Diffractive optical elements are employed as a key technology to achieve such applications. In this paper, the author describes the practical examples of a diffractive beam splitter, a diffractive beam homogenizer, a hybrid lens, and a long-focal-depth diffractive lens for a femtosecond laser.
