Solid state laser marking technology has been around since the 1980’s, when lamp pumped, Q-switched Nd:YAG lasers were THE standard laser engines. These lasers were – and still are - well suited to laser marking, producing tens of kilowatts of peak power with sub 75ns pulse durations which made it possible to mark and engrave on both plastics and metals. Over the past 30 years, however, the evolution of solid state markers has seen a number of milestones including; Nd:YVO4 “vanadate” lasers, diode pumping, the utilization of 532nm and 355nm wavelength sources, and, finally, fiber laser technology.
You read that correctly – laser micromachining of metals can be faster and cheaper with fiber laser markers. Their superior beam quality can achieve results similar to traditional machining technologies at less than half the cost! Plus – laser markers can…mark things! Who wouldn’t want one piece of equipment to do several things? And do them so well?