Laser Beam Expander with Diopter Movement / BE-6-V-S

This is an optical system for expanding a small collimated laser beam to a larger one. Fine adjustment of the collimator is available using the diopter correction function. You can use in a high precision optical system like an interferometer or laser processing with lens designed for wave from aberration.

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Part Number
BE-6-V-S
◦The beam expander optical system is air-space with no bonded lenses and can be used for high powered laser applications.
◦With the Galilean type lens configuration, it reduces the number of aberration corrections and shortens the length of the beam expander.
◦By turning the diopter ring on the beam expander, you can have a varied collimated beam with beam divergence on the focused beam. A beam waist or an accurate adjustment of the collimation is required.
◦There is a wide variety with different magnification and wavelengths to choose from.
◦As for the beam expanders type for visible lasers (LBED, BE-V), the accessory (He-Ne laser connection adapter) has been changed to a separate product (LBED-ADP-1) from June 2021. For details, please refer to the important notice " Introduction to Laser Beam Expander Accessories".
◦BE-6-V-S and BE-8.4-V-S are modified versions of BE-6-V and BE-8.4-V respectively. They have extended diopter adjustment range for short VIS wavelength, and would be ideal for low-power laser.
More Information
Catalog Code W3091
RoHS Yes
CE No
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CAD data
Guide
  • We provide the laser beam expander holders (KLH-BE) for optical axis adjustment of the laser beam expander.
  • Fabrication of beam expander for high-energy pulsed laser (BEHP) is also
    WEB Reference Catalog Code/W3200
Attention
  • By using in the opposite direction, it will not create a reduction in diameter of the collimated beam. Please use the appropriate optical system by determining the position of the beam waist and the divergence angle of the laser beam.
  • Fluorescence occurred in lenses may be observed when visible beam expanders (LBED/BE-V) are used for high-power 405 nm laser.
Specifications
Material of frameAluminum
Frame FinishBlack Anodized
Design wavelength400 - 532 nm ( Fluorescence occurred in lenses maY be observed
when using high-power 405 nm laser. )
Magnification6 ×
Input aperture (Maximum)φ4.3 mm
Barrel length A102.0±3 mm
φBφ36 mm
Mounting thread CM22 P0.75
φDφ36 mm
Barrel Diameter φEφ40 mm
Laser Damage Threshold4 J/cm2
Laser pulse width 10ns, repetition frequency 20Hz
Weight0.17 kg