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Motex – Motorized Beam Expander

Motex – Motorized Beam Expander

Expansion range


Max input beam diameter*

5 mm

Pointing stability

<100 µrad

24/7 expansion repeatability

<1% (50 µm)

Expansion accuracy

< 2.5%

Operation speed

<1 sec from min to max

Suitable for long beam path

>2 meters propagation


>10 million cycles


>98% (>99% on request)

Control interfaces


*at 1/e2 intensity level ensuring diffraction-limited performance

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Motex is a precision beam expander designed for automated applications. The device allows rapid and independent divergence as well as magnification adjustment during its operation. Motex features high pointing stability (<100 µrad or <10 µm focal spot shift in F=+100 mm lens focal plane) as well as expansion accuracy (<2.5%) which is a common desire in the industry but was not fulfilled until now.

High expansion repeatability (<1%) and the longevity of the product helps to increase the efficiency of the application as frequent calibration and replacement can be avoided. In addition, Motex optical design enables it to be used in high power laser applications as there are no internal foci.

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