Beamsplitter Plates VIS-NIR, Elliptical
Engineered for high-precision optical path control, LINOS® Elliptical VIS-NIR beamsplitter plates split or combine beams with high precision in broadband photonic systems, covering the spectral range from 450 to 1000 nm. Each plate is constructed from high-quality N-BK7 glass and features a second-surface broadband AR coating to minimize reflections and maximize transmission efficiency. Standard models provide balanced 50:50 reflectance and transmittance for unpolarized light at 45° incidence, while versions with a wedge are available to eliminate etalon effects.
Ideal for spectroscopy, imaging, and laser applications, these plates offer reliable, low-loss performance and consistent optical behavior. For larger quantities or specialized requirements—including alternative sizes, materials, or coatings—customized versions can be provided; contact our sales team for tailored solutions.
Application example: Michelson interferometer consisting of LINOS Microbench components
| Product | Beamspl. Pl. VIS-NIR; D=22.4x31.5 o.; T=50 | Beamspl. Pl. VIS-NIR; D=80x113 o.; T=50 |
| Weight (kg) | 0.005 | 0.223 |
| Shape | Elliptical | Elliptical |
| Optic Size | Ø 22.4 - 31.5 mm | Ø 80.0 - 113.0 mm |
| Substrate | N-BK7 | N-BK7 |
| Optic Center Thickness | 3.5 mm | 12.5 mm |
| Parallelism | 3.0 | 3.0 |
| Wavelength Range | 450.0 - 1000.0 nm | 450.0 - 1000.0 nm |
| Center thickness tolerance | ± 0.2 mm | ± 0.3 mm |
| Flatness back surface (λ) | 1/2 | 1 |
| Transmission (%) (Unpolarized) at Design Wavelength | 50.0 | 50.0 |
| Reflectivity | 50.0 | 50.0 |
| Flatness (λ) | 1/10 | 1/4 |
| Angle of Incidence (AOI) | 45 deg | 45 deg |
For splitting or combining beams designed for 450-1000 nm, enabling flexible beam routing and interferometric setups
Also available with a wedge to eliminate etalon effects
N-BK7 glass, ensuring high optical quality and reliable performance
Second surface broadband AR-coated (VIS-NIR, 450–1000 nm), reducing reflection losses and improving transmission efficiency
Reflectance = 50 ± 5 % for unpolarized light, enabling balanced beam splitting
Transmittance = 50 ± 5 % for unpolarized light, providing consistent output power in both beam paths
AOI = 45°, facilitating easy alignment in standard optical configurations
Customized options are available for larger quantities. Please contact us for a tailored quote.
| Product | Beamspl. Pl. VIS-NIR; D=22.4x31.5 o.; T=50 | Beamspl. Pl. VIS-NIR; D=80x113 o.; T=50 |
| Weight (kg) | 0.005 | 0.223 |
| Shape | Elliptical | Elliptical |
| Optic Size | Ø 22.4 - 31.5 mm | Ø 80.0 - 113.0 mm |
| Substrate | N-BK7 | N-BK7 |
| Optic Center Thickness | 3.5 mm | 12.5 mm |
| Parallelism | 3.0 | 3.0 |
| Wavelength Range | 450.0 - 1000.0 nm | 450.0 - 1000.0 nm |
| Center thickness tolerance | ± 0.2 mm | ± 0.3 mm |
| Flatness back surface (λ) | 1/2 | 1 |
| Transmission (%) (Unpolarized) at Design Wavelength | 50.0 | 50.0 |
| Reflectivity | 50.0 | 50.0 |
| Flatness (λ) | 1/10 | 1/4 |
| Angle of Incidence (AOI) | 45 deg | 45 deg |
For splitting or combining beams designed for 450-1000 nm, enabling flexible beam routing and interferometric setups
Also available with a wedge to eliminate etalon effects
N-BK7 glass, ensuring high optical quality and reliable performance
Second surface broadband AR-coated (VIS-NIR, 450–1000 nm), reducing reflection losses and improving transmission efficiency
Reflectance = 50 ± 5 % for unpolarized light, enabling balanced beam splitting
Transmittance = 50 ± 5 % for unpolarized light, providing consistent output power in both beam paths
AOI = 45°, facilitating easy alignment in standard optical configurations
Customized options are available for larger quantities. Please contact us for a tailored quote.