Near-Infrared Non-Polarizing Plate Beamsplitters, Infrared Fused Silica, 0.9 μm-2.6 μm BS2055-NIR

Near-Infrared Non-Polarizing Plate Beamsplitters, Infrared Fused Silica, 0.9 μm-2.6 μm — Model BS2055-NIR

Operating wavelength 0.9 μm-2.6 μm, substrate Fused Silica.

Product Description

• Optical element material: Infrared fused silica
• Operating wavelength: 0.9 μm-2.6 μm
• Application: Beam splitting, beam combining

LBTEK infrared non-polarizing plate beamsplitters are fabricated from IR-grade fused silica substrates and feature a broadband dielectric coating designed for efficient beam splitting in the infrared region. At a 45° angle of incidence, these beamsplitters provide a 50:50 split ratio with high transmission and reflection efficiency. The rear surface of the substrate is coated with an antireflection (AR) coating to minimize unwanted reflections and reduce ghost images. To further suppress interference effects and secondary reflections, the circular plate beamsplitters are manufactured with a 30′ wedge angle. LBTEK offers multiple sizes, including Ø12.7 mm, Ø25.4 mm, and Ø50.8 mm. Customization in terms of substrate material, dimensions, and coating designs are also available. For additional requirements, please contact LBTEK Technical Support.

Near-Infrared Non-Polarizing Plate Beamsplitters, Infrared Fused Silica, 0.9 μm-2.6 μm

• Optical Material: Infrared Fused Silica
• Working Wavelength: 0.9 μm-2.6 μm
• Beam Split Ratio (R:T): 50:50

LBTEK's near-infrared non-polarizing plate beamsplitters use infrared fused quartz as the substrate material, achieving beam splitting by coating a near-infrared broadband dielectric beam-splitting film on the surface. The arrow on the side of the product points to the coated beam-splitting surface. When the light beam is incident on the beam-splitting film at a 45-degree angle, efficient 50:50 beam splitting can be achieved. The back of the product is also coated with an anti-reflection film, which effectively reduces reflection and prevents ghosting. Additionally, the circular near-infrared plate beam splitter is designed with a 30′ wedge angle to further minimize ghost images and interference effects. The beam-splitting ratio accuracy is sensitive to the polarization state of the incident light; please refer to the curve page for specific details.