Variable Laser Beam Expander

All optical elements of beam expanders are made of fused silica with high lidt coatings and provide stable and reliable performance even using them with high power lasers.

Variable laser beam expander.

Variable beam expander manually adjustable or motorized for different wavelengths. Variable beam expanders are ideal for systems where different magnifications and precise control of laser beam divergence are required. Once the desired beam size and divergence is reached the position can be locked with two sets of screws. In doing so they enable different components of an optical system to adapt to one another.

Beam expanders increase or decrease the diameter of a laser beam. Techspec research grade variable beam expanders feature λ 4 transmitted wavefront galilean designs and high laser damage threshold ar coatings to ensure maximum transmittance while minimizing ghost reflections. Infinitely adjustable beam expanders deliver the high level of precision required in laser material processing. Altechna offers variable beam expanders with high pointing stability and high lidt ar coatings that minimize ghost reflections.

These laser beam expanders can be used with cw and pulsed laser sources and incorporate large input and output apertures so as to produce diffraction limited expanded or reduced beams for a wide range of input beams. Our variable beam expanders allow separate magnification and divergence adjustment. We also offer variable magnification beam expanders and reflective beam expanders. These variable magnification zoom beam expanders are designed for required wavelength and each type of our beam expanders has a divergence adjustability.