Plate Beamsplitters

Reflect and transmit any combinations of wavelengths with precision plate beamsplitters. UV, VIS, or IR, Polarized or Unpolarized, 10:90 – 90:10 Reflection:Transmission(R:T).

Custom Plate Beam Splitter Fabrication

Sydor Optics fabricates several kinds of dielectric and metal coated plate beamsplitters with various reflection/transmission (R:T) ratios, which offer many advantages when compared to cube beamsplitters. For example, plate beamsplitters can perform at higher temperatures, withstand higher levels of laser power and typically cost less than when in cube form. Plate beamsplitters are also much lighter and smaller for applications that require minimal weight or have limited space available.

So whether you need custom heads up displays (HUDs), or you’re testing laser or illumination systems, developing fluorescence applications, or are involved in spectroscopy, custom plate beamsplitters can be manufactured to best suit your specific needs. Sydor Optics offers various types of plate beamsplitters for ultraviolet (UV), visible (VIS) and infrared (IR) applications.

Plate Beam Splitter Manufacturing Limits
SpecificationsMeasurements
Diameter≤ 300mm
Length / Width≤ 225mm x 200mm
Thickness≤ 100mm
Thickness Tolerance± 0.01mm
Reflection/Transmission (R:T)90:10 – 10:90
Cosmetics (MIL-PRF-13830B)60-40 to 20-10
Surface Roughness - before coating≥ 5 Ǻ rms
Reflected Wavefront Error (RWE) - before coating≥ 1/20 wave over clear aperture
Transmitted Wavefront Error (TWE) - before coating≥ 1/20 wave over clear aperture
Clear Aperture≤ 95%

Plate Beam Splitter Types

Polarized Plate Beam Splitters

Polarized plate beamsplitters are often used to split or combine two perpendicular light sources — based upon the state of polarization, not intensity. Polarizing plate beamsplitters can be custom manufactured for large angle apertures, consistently high throughput and exceptional uniformity and contrast.

Unpolarized Plate Beam Splitters

Unpolarized plate beamsplitters, or non-polarizing beamsplitters, are designed to maintain polarization, and are ideal for laser beam manipulation applications involving critical polarization control. Non-polarizing plate beamsplitters can be fabricated in various sizes and shapes, with different coatings to maintain polarization and protect against laser damage.

Ultraviolet (UV) Plate Beam Splitters

UV plate beamsplitters are designed for different transmission and reflection ratios in the ultraviolet (UV) spectrum and are ideal for spectroscopy, medical, and fluorescence imaging and other applications involving the 250-450nm wavelength range.

Visible (VIS) Plate Beam Splitters

Visible plate beamsplitters offer an ideal combination of high performance yet require minimal substrate thickness. As the name implies, visible plate beamsplitters can be custom fabricated for different shapes, sizes, and coatings for various ratios in the visible wavelength spectrum 400 — 700nm.

Infrared (IR) Plate Beam Splitters

Infrared plate beamsplitters can be fabricated in various sizes and shapes to meet the most demanding infrared (IR) applications including near-infrared (NIR) 700-1100nm, mi-infrared 2-8µm, and extended mid-infrared 7-14µm ranges.

Plate Beam Splitter Shapes

Sydor Optics can manufacture custom plate beamsplitters — with various shapes and sizes — using CNC Glass Machining capabilities to meet your specific needs.

Some of the standard plate beamsplitter shapes that Sydor Optics customers frequently order include:

  • Circular Beamsplitters
  • Square Beamsplitters
  • Rectangular Beamsplitters
  • Elliptical Beamsplitters

Plate Beamsplitter Applications

Fluorescence Imaging
Heads Up Displays (HUD)
Imaging Systems
Laser Systems
Spectroscopy
Get prototype to high-volume production custom optics.

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