II-VI Incorporated announced the introduction of its red lasers for workpiece alignment in multi-kilowatt fiber laser systems. Red lasers integrated into high power fiber laser systems allow precise alignment of multi-kilowatt infrared laser beams to the target process areas and must operate in the presence of very high back reflections from the workpiece. II-VI’s red lasers can maintain a tightly controlled high output power of 350 mW to within 2% while under the presence of up to 5 W of reflected optical power. The design ensures a controlled and reliable process in applications such as welding, cutting, brazing and laser additive manufacturing.