New Zincselenide Beam Expanders for High Power Lasers

With the two zoom beam expanders S6EXZ9313 - 684 and S6EXZ9313 - 681, our supplier Sill Optics launches lenses for CO₂ lasers with wavelengths of 9.3 μm and 10.6 μm as a standard product for the first time.

Both beam expanders are manually adjustable in an expansion range from 1x to 3x. All magnification levels in between can be set manually. As with all Sill Optics beam expanders, the divergence can also be set manually.

Both zoom beam expanders contain lenses made exclusively from high-performance zinc selenide. The material is characterized by very high transmission and low absorption for this spectrum. State-of-the-art coatings and a special optical design with particularly few individual lenses allow very high overall transmission through the lens. S6EXZ9313-684 and S6EXZ9313-681 are both suitable for usage with high-power lasers due to their material and optical design. A free entry aperture of 28.5 mm (mechanical limitation) can be widened to a maximum of 45 mm.

The difference between the two beam expanders lies in the correction for the wavelengths of 9.3 μm (S6EXZ9313-584) and 10.6 μm (S6EXZ9313-581). These are the two most common wavelengths for standard CO2 lasers.

If you require a beam expander with other specifications (magnification, aperture, etc.) for your setup in the LWIR range (long wave infrared), you are welcome to contact us with your request at any time.

For more information, please click here.