Cube structure 400nm-700nm beam splitter prism polarization light combining beam splitter glass mirror

Cube structure 400nm-700nm beam splitter prism polarization light combining beam splitter glass mirror

400nm-700nm beam splitter prism

optical splitter prism

factory custom splitter prism

Precision cube beam splitter prism constructed from N-BK7 or K9 optical glass, with a dielectric or polarizing coating applied at the cemented diagonal interface, optimized for the visible spectrum range 400nm–700nm.

Functions as both a non-polarizing beam splitter (50:50 ratio) or polarizing beam splitter (PBS) for separating S-polarized and P-polarized light. Also suitable for light combining applications where two input beams merge into a single output path.

Two right-angle prisms are optically cemented together to form a compact cubic assembly. Ideal for laser systems, imaging instruments, interferometers, and fiber optic communication modules.

Custom splitting ratios, coatings, and anti-reflection treatments available for OEM and R&D requirements.

Description

Cube structure 400nm-700nm beam splitter prism polarization light combining beam splitter glass mirror

Product parameters: Dimensions: 10*10*10mm/15*15*15mm/20*20*20mm/30*30*30mm/35*35*35mm/40*40*40mm/50*50*50mm (customizable)

Split ratio: T/R=50/50, transmission: 50%, reflection: 50% (customizable)

Applicable wavelength: 400nm-700nm

Material: High and low temperature resistant optical glass K9 material, smooth surface without scratches.

Use: optical instruments, scientific research experiments, industrial production, etc.

Advantages: support drawing sample customization, professional production of various optical lenses, high precision, fast delivery.

Specifications:

Material: N-BK7 (nd=1.5168, νd=64.2) / K9 Crown Glass / B270 / H-ZF6 / UV Fused Silica / Custom

Prism Type: Cube Beam Splitter (Two Cemented Right Angle Prisms)

Operating Wavelength: 400nm – 700nm (Visible Band)

Split Ratio Options:

Non-Polarizing: 50:50 ±5% / 30:70 / 20:80 / 10:90 / Custom
Polarizing (PBS): Tp >95%, Ts <1% (Extinction Ratio >1000:1)

Cube Size (Edge Length): 5mm / 10mm / 12.7mm / 15mm / 20mm / 25mm / 25.4mm / 30mm / 50mm / Custom

Dimension Tolerance: ±0.1mm (±0.05mm available)

Surface Flatness: λ/4 @ 632.8nm (λ/10 available)

Surface Quality (Scratch-Dig): 60-40 / 40-20 / 20-10

Clear Aperture: >85% of face area

Beam Deviation: 0° (Input and output faces are parallel)

Wavefront Distortion: λ/4 per inch (Standard)

Coating Options:
Split Interface: Dielectric Partial Reflector / Metal-Dielectric Hybrid / Polarizing Multilayer Stack
External Faces: MgF₂ AR / Broadband AR 400–700nm / BBAR 350–1100nm / Custom

Cement: UV-Cured Optical Epoxy / Thermally Cured Epoxy (Low Shrinkage, Low Stress)

Transmittance Range (Substrate): 350nm – 2000nm (BK7/K9)

Temperature Range: -40°C to +80°C (Storage and Operation)