Laser Beam Delivery Components
Motorized Variable Beam Expander
Overview
The Motorized Variable Beam Expander (MVBE) allows for remote adjustment of laser beam diameter and divergence. Each unit includes internal focusing optics driven by a compact servo system, making it easy to dial in beam characteristics without manual intervention. These expanders are ideal for dynamic laser systems, R&D setups, or production lines where fine-tuning beam size is required for different materials or processes. Available in multiple aperture sizes and mounting options for seamless integration into Haas or third-party beam delivery systems.
Available Product Series
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19mm Series
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25mm Series
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50mm Series
Compatible Laser Types
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Collimated Input
Select the part number you need and click the button below to request a quote and more information.
Applications
Applications
Motorized variable beam expanders are used in systems where remote control over beam size and divergence is essential. Common applications include:
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Laser processing systems where different materials or operations (e.g., cutting, welding, engraving) require on-the-fly adjustments to beam size.
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Automated production environments where manual optical adjustment is impractical or too slow.
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R&D labs working on variable process development or tuning laser spot sizes across a wide range of parameters.
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Optical test benches requiring repeatable adjustments in beam divergence for alignment or measurement tasks.
These components may also be referred to as motorized beam collimators, remote beam expanders, or servo-adjustable beam expanders, all of which are supported by this series.
Product selection guidance
Selecting a Part Number
To select the appropriate Motorized Variable Beam Expander (MVBE), follow these steps:
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Select the aperture size
Choose the aperture size that matches your beam delivery system:-
19mm, 25mm or 50mm
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Select the wavelength
Choose the wavelength range compatible with your laser:-
Depending on the aperture size selected, it may be a one size fits all or you may need to specify the wavelength
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Select the translation type
Choose how the internal optics are adjusted:-
S for Manual
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M for Motorized
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Product Configurations
MVBE-19
19mm Series
Select part numbers and download CAD files
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The provided driver or installation can be utilized to configure the USB interface as a COM port on the connected PC.
Proprietary “rail” design allows for minimal beam wander (<0.1mrad) while maintaining diffraction limited performance over the entire expansion range. Fused Silica optics coated at 355nm, 532nm or 900nm-1100nm
Includes beam expander, control box, power supply, cables and GUI software.
FEATURES
- USB controlled
- Super compact control box
- User-controlled focus adjustment
- Default expansion settings pre-programmed
- Users can define custom expansion settings
- Compact 2.38" outside diameter for standard optical mounting
- Windows compatible
- Developed in LabView™
- GUI (.DLL) can be addressed from C++ or other languages
SPECIFICATIONS
- Beam Wander: 15 mRad
- Damage Threshold UV & VIS-NIR models: <100 MW/cm2
- Expansion Change Time: < 5 seconds
- Expansion Range: 1x-4x continuous
- FOV: +/- 0.5 Degrees
- Input Aperture (mm): 10mm Max
- Output Aperture (mm): 30mm
- Transmission: >95%
- Usable Temperature Range: -10 to +50 Celsius
- Wavefront Distortion: <0.072 RMS@633nm
- Wavelength Range: 355nm, 532nm or 900nm-1100nm
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Part Number Expansion Wavelength MVBE-19-S-1-2661x-4x266nmMVBE-19-S-1-3551x-4x355nmMVBE-19-S-1-5321x-4x532nmMVBE-19-S-1-450-7001x-4x450nm-700nmMVBE-19-S-1-10641x-4x1064nmMVBE-19-S-1-15501x-4x1550nmSpecifications subject to change without notice
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File Name File mvbe-19.zipDownload
MVBE-25
25mm Series
Select part numbers and download CAD files
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MVBE Features
- Diffraction-limited design
- 3 Element TLCTM design mitigates thermal lensing
- Optimized for minimal beam wander
- Motorized or manual zoom option
- Lead screw linear translation
- Default Expansion settings pre-programmed
- Compact Sealed Design
- Water-Cooled
- Accepts all Haas LTI fiber collimators and focus assemblies.
MVBE Specifications
- Expansion Range: 1X-3X Continuous
- Input Aperture: 20mm Max
- Output Aperture: 20mm Max
- Beam Wander: 0.15mrad
- Wavefront Distortion: <1/4 Wave @532nm
- Wavelength: see below
- Transmission: >97%
- Expansion Change Time: < 10 sec.
- Temperature Range: -10 to +50 C
MBVE Damage Threshold
1 MW/cm2 @ 1064nm CW, > 10J/cm2, 20 nsec, 20 Hz @ 1064nm pulsed.
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Part Number Expansion Wavelength Translation MVBE-25-3x-1070-S1x-3x1064nm-1070nmManualMVBE-25-3x-1070-M1x-3x1064nm-1070nmMotorizedSpecifications subject to change without notice
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File Name File mvbe-25-3x.zipDownload
MVBE-50
50mm Series
Select part numbers and download CAD files
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MVBE Features
- Diffraction-limited design
- 3 Element TLCTM design mitigates thermal lensing
- Optimized for minimal beam wander
- Motorized or manual zoom option
- Lead screw linear translation
- Default Expansion settings pre-programmed
- Compact Sealed Design
- Water-Cooled
- Accepts all Haas LTI fiber collimators and focus assemblies.
MVBE Specifications
- Expansion Range: 1X-3X Continuous
- RS232 Serial Interface
- Input Aperture: 47mm Max (When used as 3x reduction)
- Output Aperture: 47mm Max (When used as 3x expansion with 15.67mm input)
- Beam Wander: 0.15mrad
- Wavefront Distortion: <1/4 Wave @633nm
- Wavelength: see below
- Transmission: 97%
- Expansion Change Time: < 10 sec.
- Temperature range: -10 to +50 C
MBVE Damage Threshold
9800nm - 10600nm: 20KW/cm2 pulsed, 1KW/cm2 CW
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Part Number Expansion Wavelength Translation MVBE-50-3X-1070-S1x-3x1064nm-1070nmManualMVBE-50-3X-1070-M1x-3x1064nm-1070nmMotorizedSpecifications subject to change without notice
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File Name File mvbe-50-3x-1070.zipDownload
Accessories
Alignment Targets
Alignment targets make laser beam setup and optical alignment fast and repeatable. Available for all Haas LTI beam delivery sizes, they simplify system setup, troubleshooting, and maintenance.
Product Features
Motorized Internal Optics
Beam diameter and collimation can be remotely controlled via servo drive.
Multiple Aperture Sizes
Available in 19 mm, 25 mm, and 50 mm to match common beam delivery systems.
Rigid CNC-Machined Housing
Durable aluminum body with precision alignment features ensures mechanical and optical stability.