Single-Mode Fiber Laser MarkingMay 16, 2013
There are two types of fiber lasers, single mode and multi mode. Single-mode fiber lasers typically are delivered via fiber with a core diameter of less than 25 microns, producing a narrow, high-intensity beam that can be focused down to a spot size as small as 20 microns. This high-intensity, small spot is ideally suited for fine laser marking, micro machining, or cutting applications.
Multi-mode (also called higher order mode) fiber lasers, by contrast, use fibers with core diameters greater than 25 microns, resulting in lower-intensity beam and larger focused spot sizes.