Avantier excels in crafting and producing personalized beamsplitters, seamlessly spanning the journey from prototyping to large-scale manufacturing. Their expertise empowers diverse applications, harnessing light manipulation for purposes such as microscopy, lasers, and imaging. Discover a dedicated partner in Avantier for tailored optical solutions at any production stage.

  1. Ratio and Insensitivity to Input Beam Polarization: The beamsplitters have a 50% Reflectance (R) and 50% Transmittance (T) ratio, meaning they split the incident laser beam into two equal intensity beams. Additionally, these beamsplitters are designed to be insensitive to the polarization of the input beam. This is advantageous when maintaining the polarization state of the laser light is not critical for the application.
  2. Sizes: The beamsplitters are available in three different sizes: 12.5mm and 25mm diameters and a 50mm square option. This range of sizes allows for flexibility in integrating the beamsplitters into various optical setups.
  3. High Damage Thresholds: The beamsplitters are designed to withstand high power laser beams without sustaining damage. This feature is crucial in laser applications where the intensity of the light can be quite high.
  4. AR V-Coating: The beamsplitter coating includes a high-efficiency anti-reflective (AR) V-coating. This coating helps to minimize reflection losses at the surfaces of the beamsplitter, enhancing overall performance.
  5. Substrate: The substrate, which is the base material of the beamsplitter, is made of precision excimer-grade UV-grade fused silica. This material is known for its excellent optical properties, including low auto-fluorescence (minimizing unwanted emission of light) and thermal stability. The substrate features a surface quality of 10-5 (very smooth surface) and a parallelism of 5 arc seconds (high precision alignment of the surfaces).
  6. Uncoated Substrates: In addition to the coated beamsplitters, uncoated substrate options are available in both the 12.5mm and 25mm sizes. These uncoated substrates can provide flexibility for custom coatings or specific applications without a desired coating.
Laser Line Non-Polarizing Plate Beamsplitter
Laser Line Non-Polarizing Plate Beamsplitter
Laser Line Non-Polarizing Plate Beamsplitter

The described laser line plate beamsplitters are versatile optical components designed for laser applications. Their features, such as the 50R/50T ratio, insensitivity to input beam polarization, range of sizes, high damage thresholds, and quality coatings, make them suitable for integrating into various laser systems and setups that require precision and reliability. The use of high-quality substrate materials further contributes to their performance and stability.

If you have more questions about aspheric lenses, don’t hesitate to contact us. Our experienced optical designers are always available to discuss a custom order.

Factory Standard


UV Grade Fused Silica, JGS1, JGS2


+0.00 / -0.10mm

Surface Quality


Clear Aperture



5 arc sec

Laser Line Non-Polarizing Plate Beamsplitter
Figure 1. 355nm
Laser Line Non-Polarizing Plate Beamsplitter
Figure 2. 523nm
Laser Line Non-Polarizing Plate Beamsplitter
Figure 3. 488nm
Laser Line Non-Polarizing Plate Beamsplitter
Figure 4. 1064nm


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