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Beam Expanders

Safeguard the ti-Series laser on your production line with extra protection from dirt, dust and processing vapors with a Synrad BE-300, BE-400 or BE-500 beam expander.

Small, lightweight and easy-to-install, our BE-Series Beam Expanders expand and collimate the beam diameter of your laser's output by 3x, 4x or 5x, to reduce or eliminate damaging hot-spots and optics damage that can sometimes occur in harsh operating environments.

Ruggedly constructed from a single aluminum block and anodized for added corrosion resistance, BE Beam Expanders conveniently and easily mount to the front of ti-Series lasers via slotted holes on the input face for maximum adjustability and perfect alignment. O-ring gaskets on both ends of the unit ensure a snug fit and fully airtight seal between the expander and the laser, and between the expander and any other optical components mounted to the threaded 8-32 UNC holes on the output face of the expander.

The interiors of BE-Series Beam Expanders are fully shielded from the operating environment, and conform to IP6 standards. Two ZnSe Galilean telescopic lenses ensure maximum transmission of laser power.

Model BE-300 BE-400 BE-500
Expansion Ratio 3x 4x 5x
Clear Aperture 14 mm (0.551") 14 mm (0.551") 14 mm (0.551")
Cooling Air Air Air
Optical Transmission > 99% > 99% > 99%
Optical Attenuation < 1% < 1% < 1%
Available Wavelengths 9.3 µm, 10.6 µm 9.3 µm, 10.6 µm 9.3 µm, 10.6 µm
Dimensions (in) 2.126 x 1.750 x 2.165 2.126 x 1.750 x 2.375 2.126 x 1.750 x 2.460
Dimensions (mm) 54.0 x 44.5 x 55.0 54.0 x 44.5 x 60.3 54.0 x 44.5 x 62.5
Weight 213 g TBD 238 g
Mounting 8-32 cap screw 8-32 cap screw 8-32 cap screw
Data Sheet Click here to download Click here to download Click here to download

Beam specifications measured at 1/e2.

Synrad Accessories Spec Tables Beam Expanders

Data Sheets




To purchase the Beam Expander, please contact a Synrad Sales Manager.

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