Beamsplitter Cubes NIR

Beamsplitter Cubes NIR

Our LINOS® Beamsplitter Cubes NIR are precision optical components designed to split or combine near-infrared light beams with exceptional accuracy. They transmit beams without angular or lateral deflection, ensuring that reflected and transmitted paths remain perfectly aligned. Built from high-quality N-BK7 glass, these compact, rugged cubes deliver optical durability. With reflectance and transmittance balanced close to 50% for unpolarized light, they provide reliable performance across a wide range of applications. The broadband anti-reflection coating minimizes losses, enhancing efficiency and stability in laser systems. 

LINOS beamsplitter cubes are optimized for low-power laser applications and deliver precise, consistent performance in laboratory and industrial settings. Optional beamsplitting ratios and custom configurations in different sizes, materials, and coatings provide flexibility for advanced optical setups.

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Beamsplitter cube: h height, L1 width, L2 length

Product Beamsplitter Cube NIR; N-BK7; L=5 Beamsplitter Cube NIR; N-BK7; L=10 Beamsplitter Cube NIR; N-BK7; L=12.5 Beamsplitter Cube NIR; N-BK7; L=16 Beamsplitter Cube NIR; N-BK7; L=20 Beamsplitter Cube NIR; N-BK7; L=25
Weight (kg) 3.0E-4 0.003 0.005 0.01 0.02 0.039
Shape Elliptical Cube Cube Cube Cube Cube
Optic Size 5.0 mm 10.0 mm 12.5 mm 16.0 mm 20.0 mm 25.0 mm
Optic Substrate N-BK7 N-BK7 N-BK7 N-BK7 N-BK7 N-BK7
Clear aperture Ø 4.0 mm Ø 8.0 mm Ø 10.0 mm Ø 14.0 mm Ø 16.0 mm Ø 21.0 mm
Wavelength Range 750.0 - 1200.0 nm 750.0 - 1200.0 nm 750.0 - 1200.0 nm 750.0 - 1200.0 nm 750.0 - 1200.0 nm 750.0 - 1200.0 nm
Tolerance h -0.075 mm -0.09 mm -0.11 mm -0.11 mm -0.13 mm -0.13 mm
Tolerance L1 ± 0.3 mm ± 0.3 mm ± 0.2 mm ± 0.2 mm ± 0.4 mm ± 0.4 mm
Tolerance L2 ± 0.3 mm ± 0.3 mm ± 0.2 mm ± 0.2 mm ± 0.4 mm ± 0.4 mm
Coating Specification 1x T:R=50:50±5% @750-1200 nm
4x R<0.5% @750-1200 nm
1x T:R=50:50±5% @750-1200 nm
4x R<0.5% @750-1200 nm
1x T:R=50:50±5% @750-1200 nm
4x R<0.5% @750-1200 nm
1x T:R=50:50±5% @750-1200 nm
4x R<0.5% @750-1200 nm
1x T:R=50:50±5% @750-1200 nm
4x R<0.5% @750-1200 nm
1x T:R=50:50±5% @750-1200 nm
4x R<0.5% @750-1200 nm
  • For splitting or combining light beams, enables flexible optical system design

  • No angular or lateral deflection of transmitted beams, ensures high-precision beam alignment

  • Reflected and transmitted beams transit identical optical paths, guarantees consistent optical timing and path length

  • Compact, rugged units made of N-BK7 glass for easy integration

  • Designed for use with low-power lasers (0.1 J / cm2 for 10 ns pulses at 1064 nm)

  • Optionally available with other beamsplitting ratios

  • Reflectance ≈ transmittance ±5 % for unpolarized light and absorption < 5 % allows for consistent, balanced splitting

  • Broadband AR-coated (ARB2-NIR) reduces reflection losses across NIR wavelengths

  • 8 arcmin angular beam deflection tolerance, maintains beam accuracy even under minor alignment variations

Product Beamsplitter Cube NIR; N-BK7; L=5 Beamsplitter Cube NIR; N-BK7; L=10 Beamsplitter Cube NIR; N-BK7; L=12.5 Beamsplitter Cube NIR; N-BK7; L=16 Beamsplitter Cube NIR; N-BK7; L=20 Beamsplitter Cube NIR; N-BK7; L=25
Weight (kg) 3.0E-4 0.003 0.005 0.01 0.02 0.039
Shape Elliptical Cube Cube Cube Cube Cube
Optic Size 5.0 mm 10.0 mm 12.5 mm 16.0 mm 20.0 mm 25.0 mm
Optic Substrate N-BK7 N-BK7 N-BK7 N-BK7 N-BK7 N-BK7
Clear aperture Ø 4.0 mm Ø 8.0 mm Ø 10.0 mm Ø 14.0 mm Ø 16.0 mm Ø 21.0 mm
Wavelength Range 750.0 - 1200.0 nm 750.0 - 1200.0 nm 750.0 - 1200.0 nm 750.0 - 1200.0 nm 750.0 - 1200.0 nm 750.0 - 1200.0 nm
Tolerance h -0.075 mm -0.09 mm -0.11 mm -0.11 mm -0.13 mm -0.13 mm
Tolerance L1 ± 0.3 mm ± 0.3 mm ± 0.2 mm ± 0.2 mm ± 0.4 mm ± 0.4 mm
Tolerance L2 ± 0.3 mm ± 0.3 mm ± 0.2 mm ± 0.2 mm ± 0.4 mm ± 0.4 mm
Coating Specification 1x T:R=50:50±5% @750-1200 nm
4x R<0.5% @750-1200 nm
1x T:R=50:50±5% @750-1200 nm
4x R<0.5% @750-1200 nm
1x T:R=50:50±5% @750-1200 nm
4x R<0.5% @750-1200 nm
1x T:R=50:50±5% @750-1200 nm
4x R<0.5% @750-1200 nm
1x T:R=50:50±5% @750-1200 nm
4x R<0.5% @750-1200 nm
1x T:R=50:50±5% @750-1200 nm
4x R<0.5% @750-1200 nm
  • For splitting or combining light beams, enables flexible optical system design

  • No angular or lateral deflection of transmitted beams, ensures high-precision beam alignment

  • Reflected and transmitted beams transit identical optical paths, guarantees consistent optical timing and path length

  • Compact, rugged units made of N-BK7 glass for easy integration

  • Designed for use with low-power lasers (0.1 J / cm2 for 10 ns pulses at 1064 nm)

  • Optionally available with other beamsplitting ratios

  • Reflectance ≈ transmittance ±5 % for unpolarized light and absorption < 5 % allows for consistent, balanced splitting

  • Broadband AR-coated (ARB2-NIR) reduces reflection losses across NIR wavelengths

  • 8 arcmin angular beam deflection tolerance, maintains beam accuracy even under minor alignment variations

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