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China, Chinese Visible 400-700nm Beamsplitter Coating Non-Polarizing Beamsplitter Plates1 Industrial Products Supplier Manufacturer Details, price list catalog:
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Optical Lens InstrumentOptical MirrorNon-Polarizing BeamsplittersPlate Beamsplitters
Band Optics Technology
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Product DescriptionProduct DescriptionNon-Polarizing Beamsplitters are precision optical components designed to split or combine light beams while preserving polarization states, offering balanced 50/50 transmission-reflection across 400–1600 nm (visible to NIR). Built on BK7 or UVFS substrates with broadband dielectric coatings, they ensure <1% polarization-dependent loss and high laser damage thresholds (10 J/cm2 for 1064 nm). Ideal for interferometry, imaging systems, and laser alignment.As a china manufacturer, we deliver:· Customizable splitting ratios (20/80 to 80/20) and substrate thicknesses (1–5 mm)· Standard sizes (?12.7–50 mm) and rapid prototyping for rectangular/irregular shapes· Rigorous QC for λ/10 flatness and 20-10 scratch-dig compliance· Application engineering support to minimize polarization crosstalk in complex setupsProduct OverviewNon-Polarizing Beamsplitters (NPBS) are optical components designed to divide an incoming light beam into two approximately equal parts—one reflected and one transmitted—without altering the polarization state of the light. Unlike polarization-sensitive beam splitters, NPBS devices maintain consistent performance across all polarization states, making them ideal for applications where polarization independence is critical. Constructed from high-quality BK7 glass or fused silica substrates, these beam splitters feature dielectric or metallic coatings on the hypotenuse face of a cube or the surface of a plate. The coatings are engineered to achieve precise reflectance-transmittance ratios (e.g., 50/50, 30/70) across specific wavelength ranges, ensuring minimal absorption loss and high optical efficiency .SpecificationProduct: Non-Polarizing BeamsplittersMaterial: Fused Silica/BK7Diameter Tolerance: +/-0.1mmThickness Tolerance: +/-0.1mmFlatness (PV): <1/10L@633nmSurface Quality: 10-5Surface Roughness: Ra<1nmRatios: 50/50, 30/70Clear Aperture: >90%Bevel: Break sharp edgesKey FeaturesPolarization InsensitivityNPBS devices ensure equal splitting of S and P polarization components, maintaining consistent performance regardless of the input light's polarization state. This is achieved through advanced coating designs that balance reflectance and transmittance for both polarizations . Precision CoatingsCoatings are optimized for specific wavelength ranges (e.g., visible, NIR) and splitting ratios. For example, a 50/50 NPBS cube may achieve ±5% tolerance in reflectance-transmittance balance across its operational bandwidth . Low Absorption and ScatteringDielectric coatings minimize energy loss, with absorption typically below 1%. Metallic coatings, while less common, offer broader spectral coverage but slightly higher absorption . Durability and StabilityCemented cube designs provide mechanical stability, while anti-reflective (AR) coatings on entrance and exit surfaces reduce ghosting and enhance transmission efficiency . Customizable ConfigurationsAvailable in cube, plate, or wedge designs, NPBS devices can be tailored to specific applications, including high-power laser systems, imaging, and interferometry .FAQQ: How does a non-polarizing beamsplitter differ from a polarizing one?A: Non-Polarizing Beamsplitters devices treat S and P polarization equally, while polarizing beam splitters separate light into orthogonal polarization states. NPBS is preferred when polarization must remain unchanged, whereas polarizing splitters are used for polarization analysis or manipulation .Q: Can Non-Polarizing Beamsplitters devices handle high-power lasers?A: Yes, but it depends on the coating type. Dielectric-coated Non-Polarizing Beamsplitters cubes are suitable for moderate power, while metallic coatings can handle higher power but with slightly reduced efficiency. Always check the laser damage threshold (LIDT) for high-power applications .Q: What is the typical wavelength range for NPBS devices?A: Non-Polarizing Beamsplitters devices are available for UV (200–400 nm), visible (400–700 nm), and NIR (700–2000 nm) ranges. Custom designs can extend this range further .Q: How do I choose between a cube and a plate beamsplitter?A: Cube beamsplitters offer better mechanical stability and alignment ease, while plate beamsplitters are thinner and more cost-effective. Cube designs are preferred for precision applications, while plates are suitable for space-constrained setups .InspectionsCompany HistoryFactory AdvantagesSales TeamProduction TeamInspection Team Band-Optics has a professional sales team, which offer our customers end-to-end 24-hour trustworthy pre-sales and after-sales service and solution.We try our best to meet every customers' needs.Band-Optics has many experienced operators and advanced machines, which importantly guarantee high-quality products. Our advanced production machines including:Automated, High-Speed and Low-Speed Precision Polishing machines, Grinding machine from Taiwan and Korea, Coating machines, Multi Axis machines, Edging machines, Mechanical milling machines, CNC machines......Our testing machine including:ZYGO for surface roughness and surface flatness inspectionVernier Caliper Mitutoyo for length and diameter inspectionMicroscope for surface defect rate/inner quality(bubbles, inclusions)MOELLER-WEDEL inspects angle accuracyAgilent Carry 7000 for SpetrometerTAYLOR HOBSON inspect optics surface form/sharp measurement and profilometerTRIOPTICS for centration inspectionWe provide every testing report for each batch for your items.
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