Optical arrangement to improve focusing ability of laser diode beams; has several plates that displace parts of laser beam to improve focusing ability in one of two spatial directions

摘要

The arrangement has several plates (2), which may be plane parallel or have curved surfaces, to displace parts of the laser radiation so as to cause improved focusing ability of the radiation in one of the two spatial directions. Both the fast-axis and the slow-axis of the laser beam are collimated.