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Laser Beam Delivery Components

Beam Splitter

Overview

Haas kinematic beam splitters housings divide a single laser beam into two separate paths using a partially reflective optic mounted at 45 degrees. Part of the beam is reflected at a right angle, while the rest continues straight through. Each unit features a kinematic mirror holder for angular adjustment and is housed in a modular body compatible with Haas beam delivery components.

Beam splitter housings are available in a range of aperture sizes. The optic holder is designed to be compatible with all standard round beam splitter optics. Common uses include beam sampling, system redundancy, and directing a portion of the beam to diagnostics or secondary processes. They are suitable for both factory-floor installations and lab-based development work. 

Available Product Series
  • 19mm Series
  • 25mm Series
  • 38mm Series
  • 50mm Series
Compatible Laser Types
  • Collimated Input

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Laser Beam Delivery
Applications
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Applications

Haas beam splitters — also know as beam samplers, beam dividers, or splitter modules — are used in systems where a single laser beam needs to be distributed across multiple optical paths. By sending part of the beam to a secondary location, these components support a wide range of industrial and research applications.

In laser processing systems, beam splitters are commonly used to route a portion of the beam to a monitoring device, power sensor, or camera. This allows for real-time diagnostics, beam profiling, or safety verification without interrupting the main process. In dual-head or multi-station setups, beam dividers can be used to deliver laser power to multiple workstations from a single source, improving throughput and system efficiency.

In lab and R&D environments, beam splitter modules are often used for process development, optical experiments, or system testing. Their adjustable design allows users to easily tune the reflection angle, making them useful for prototyping new beam layouts on optical tables.

Common industries include semiconductor manufacturing, medical device production, aerospace and defense, and university research labs—anywhere a laser beam needs to be split, sampled, or redirected without compromising beam quality or alignment stability.

Product selection guidance
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Specing a Beam Splitter

To select the correct beam splitter housing for your system, you'll need to choose the aperture size, optic diameter, and optic thickness. Haas beam splitters are designed to match the rest of your beam delivery system by series.

1. Choose Aperture Size

Match the aperture to your system's beam diameter and mechanical series:

  • BSK-19 – 19 mm series

  • BSK2-25 – 25 mm series

  • BSK2-38 – 38 mm series

  • BSK-50 – 50 mm series

We recommend selecting an aperture at least 1.5x your beam diameter to avoid clipping.

2. Select Appropriate Optic Diameter

3. Select Appropriate Optic Thickness

Accessories
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Product Configurations

BSK-19

19mm Series

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BSK2-25

25mm Series

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BSK2-38

38mm Series

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BSK-50

50mm Series

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Accessories

Laser Bezel Adaptors

A selection of bezel adapters to protect the beam path.

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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.

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Optic Cleaning Kit

Specifically designed for industrial laser systems, the Optic Cleaning Kit contains the proper tools and solutions to clean laser optics.

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Mirrors

Our mirrors redirect laser beams at 45° with near-100% reflectivity. Options include visible-transmissive mirrors with AR coatings for camera integration. Specs available to guide selection.

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Beam Combiners

Beam combiners align visible lasers with CO₂ systems by transmitting 10.6 µm and reflecting visible beams at 45°. Standard models are tuned for 633 nm, with options for 650 and 670 nm.

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Beam Splitters

These 10.6 µm beamsplitters reflect a set percentage of energy at 45° AOI while transmitting the rest. Available with parallel or wedged surfaces, and in reflectance values from 4.5% to 50%.

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Product Features

Billet aluminum construction

CNC machined from 6061 aluminum to give robust performance in demanding environments. Perfect for factories, production use, optical tables and prototyping.

Sealed optics & beam path

Our sealed optical beam path allows you to create a positive internal pressure to prevent dust and contaminants from entering the system. Great for dusty or dirty environments.

Fine adjustments in all directions

Using 80 pitch adjusters allows for infinite adjustment to create a perfectly centered beam. Paired with our alignment targets makes it easy to align multiple beam benders in series.

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Related Products

Standard Beam Dump

Standard beam dumps come with either water or air cooling and can handle up to 500 watts.

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Optic Cleaning Kit

Specifically designed for industrial laser systems, the Optic Cleaning Kit contains the proper tools and solutions to clean laser optics.

View Product

Beam Expanders

Fixed-ratio laser beam expanders for increasing beam diameter and improving collimation in laser processing systems

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Clamp Mount Beam Tubes

Clamp-mount beam tubes offer a balance of strength and convenience—semi-structural, easy to assemble, and ideal for systems needing both rigidity and quick access.

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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.

View Product

Beam Polarizer

Laser beam polarizers adjust the polarization state of the beam for process control, measurement, or downstream filtering.

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High Power Beam Dump

High-performance beam dumps safely absorb greater than 500 watts of laser power. Currently available in 38mm and 50mm aperture sizes.

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Quick Mount Beam Tubes

Quick-mount beam tubes are ideal for fast changeovers and modular setups. They allow slight misalignment between components, and make maintenance and assembly simple and easy.

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Shutter

Fast-acting laser shutters with optional alignment diode allowing you to terminate the beam quickly. Water-cooled options for high power applications.

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PHA Series

Basic process head designed for low-power applications using a free-space collimated laser source. Compact and straightforward for general use.

View Product

Lenses

Discover our high-performance focus lenses, from meniscus to plano-convex, built for precision and durability. Specs on wavelength, material, size, and coatings are available in the More Info section.

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Mirrors

Our mirrors redirect laser beams at 45° with near-100% reflectivity. Options include visible-transmissive mirrors with AR coatings for camera integration. Specs available to guide selection.

View Optics
    BSK-19-25020-L Recommended for Fused Silica optic substrates 1.0in 2.0mm Low Force BSK-19-25020-S 1.0in 2.0mm Standard BSK-19-25030-L Recommended for Fused Silica optic substrates 1.0in 3.0mm Low Force BSK-19-25030-S 1.0in 3.0mm Standard BSK-19-25040-L Recommended for Fused Silica optic substrates 1.0in 4.0mm Low Force BSK-19-25040-S 1.0in 4.0mm Standard BSK-19-25050-L Recommended for Fused Silica optic substrates 1.0in 5.0mm Low Force BSK-19-25050-S 1.0in 5.0mm Standard BSK-19-25060-L Recommended for Fused Silica optic substrates 1.0in 6.0mm Low Force BSK-19-25060-S 1.0in 6.0mm Standard BSK-19-25064-L Recommended for Fused Silica optic substrates 1.0in 6.4mm Low Force BSK-19-25064-S 1.0in 6.4mm Standard BSK-19-25M020-L Recommended for Fused Silica optic substrates 25mm 2.0mm Low Force BSK-19-25M020-S 25mm 2.0mm Standard BSK-19-25M030-L Recommended for Fused Silica optic substrates 25mm 3.0mm Low Force BSK-19-25M030-S 25mm 3.0mm Standard BSK-19-25M040-L Recommended for Fused Silica optic substrates 25mm 4.0mm Low Force BSK-19-25M040-S 25mm 4.0mm Standard BSK-19-25M050-L Recommended for Fused Silica optic substrates 25mm 5.0mm Low Force BSK-19-25M050-S 25mm 5.0mm Standard BSK-19-25M060-L Recommended for Fused Silica optic substrates 25mm 6.0mm Low Force BSK-19-25M060-S 25mm 6.0mm Standard BSK-19-25M064-L Recommended for Fused Silica optic substrates 25mm 6.4mm Low Force BSK-19-25M064-S 25mm 6.4mm Standard BSK-19-28020-L Recommended for Fused Silica optic substrates 1.1in 2.0mm Low Force BSK-19-28020-S 1.1in 2.0mm Standard BSK-19-28030-L Recommended for Fused Silica optic substrates 1.1in 3.0mm Low Force BSK-19-28030-S 1.1in 3.0mm Standard BSK-19-28040-L Recommended for Fused Silica optic substrates 1.1in 4.0mm Low Force BSK-19-28040-S 1.1in 4.0mm Standard BSK-19-28050-L Recommended for Fused Silica optic substrates 1.1in 5.0mm Low Force BSK-19-28050-S 1.1in 5.0mm Standard BSK-19-28060-L Recommended for Fused Silica optic substrates 1.1in 6.0mm Low Force BSK-19-28060-S 1.1in 6.0mm Standard BSK-19-28064-L Recommended for Fused Silica optic substrates 1.1in 6.4mm Low Force BSK-19-28064-S 1.1in 6.4mm Standard BSK2-25-38030-N 38mm (1.5in) 3mm (.125in) None BSK2-25-38030-W 38mm (1.5in) 3mm (.125in) Water BSK2-25-38040-N 38mm (1.5in) 4mm None BSK2-25-38040-W 38mm (1.5in) 4mm Water BSK2-25-38050-N 38mm (1.5in) 5mm None BSK2-25-38050-W 38mm (1.5in) 5mm Water BSK2-25-38060-N 38mm (1.5in) 6mm None BSK2-25-38060-W 38mm (1.5in) 6mm Water BSK2-25-38064-N 38mm (1.5in) .25in None BSK2-25-38064-W 38mm (1.5in) .25in Water BSK2-25-38090-N 38mm (1.5in) 9mm None BSK2-25-38090-W 38mm (1.5in) 9mm Water BSK2-25-38095-N 38mm (1.5in) 9.5mm (.375in) None BSK2-25-38095-W 38mm (1.5in) 9.5mm (.375in) Water BSK2-38-50050-N 50mm 5.0mm None BSK2-38-50050-W 50mm 5.0mm Water BSK2-38-50064-N 50mm .250in None BSK2-38-50064-W 50mm .250in Water BSK2-38-50095-N 50mm .375in None BSK2-38-50095-W 50mm .375in Water BSK2-38-50100-N 50mm 10mm None BSK2-38-50100-W 50mm 10mm Water BSK2-38-51050-N 2.0in 5.0mm None BSK2-38-51050-W 2.0in 5.0mm Water BSK2-38-51064-N 2.0in .250in None BSK2-38-51064-W 2.0in .250in Water BSK2-38-51095-N 2.0in .375in None BSK2-38-51095-W 2.0in .375in Water BSK2-38-51100-N 2.0in 10mm None BSK2-38-51100-W 2.0in 10mm Water BSK-50-75064-N 75mm 0.25in None BSK-50-75064-W 75mm 0.25in Water BSK-50-75076-N 75mm 0.3in None BSK-50-75076-W 75mm 0.3in Water BSK-50-75095-N 75mm 0.375in None BSK-50-75095-W 75mm 0.375in Water BSK-50-75100-N 75mm 10mm None BSK-50-75100-W 75mm 10mm Water BSK-50-75127-N 75mm 0.5in None BSK-50-75127-W 75mm 0.5in Water BSK-50-76064-N 3in 0.25in None BSK-50-76064-W 3in 0.25in Water BSK-50-76076-N 3in 0.3in None BSK-50-76076-W 3in 0.3in Water BSK-50-76095-N 3in 0.375in None BSK-50-76095-W 3in 0.375in Water BSK-50-76100-N 3in 10mm None BSK-50-76100-W 3in 10mm Water BSK-50-76127-N 3in 0.5in None BSK-50-76127-W 3in 0.5in Water