Beam Expanders

Applications

Fixed laser beam expanders play a critical role in precision laser processing where long working distances or fine focal spots are required. By increasing the beam diameter and improving collimation, these expanders reduce divergence and enable tighter, more consistent focus — especially important in high-precision or high-speed workflows.

In laser cutting systems, beam expanders help achieve narrower kerf widths and cleaner edges by allowing the focusing optics to concentrate the beam into a smaller, more defined spot. This results in greater precision, less thermal distortion, and improved edge quality on delicate or thin materials.

In drilling applications, such as those in aerospace or electronics manufacturing, expanders improve focus depth and allow for finer, more repeatable hole diameters. This is especially valuable when working with multilayer composites or heat-sensitive substrates.

In marking and engraving systems, expanded beams help reduce hot spots and improve consistency across the scan field, enhancing both visual quality and material compatibility. This is particularly beneficial for high-resolution text or detailed logos.

In medical device fabrication and semiconductor processing, where contamination control and ultra-fine feature sizes are critical, the improved collimation and focus stability of a beam expander ensures cleaner cuts and reduced debris.

Because Haas LTI's fixed beam expanders are built with rugged, aligned optics and no moving parts, they’re well-suited for high-volume production environments, robotic automation systems, and any process requiring long-term alignment stability.

Specing a Beam Bender

1. Aperture Size

2. Cooling Type

3. Optional Features