Custom Beamsplitter Cubes for Precision Optical Routing
Precise Beam Division | Polarizing & Non-Polarizing | OEM Custom Ratios
- Complex Optical Routing: Engineered to precisely divide a single beam of light into two separate paths, or combine two beams into one. Essential for building compact, folded optical systems where space and alignment are critical.
- Custom Split Ratios: Available in both Non-Polarizing (NPBS) and Polarizing (PBS) configurations. We manufacture custom transmission-to-reflection (T:R) ratios including 50:50, 70:30, 90:10, or exactly tailored to your system's energy requirements.
- High-Stability Cementing: Manufactured using precision cementing or optical contacting techniques, ensuring the internal hypotenuse coating remains stable and free from stress-induced wavefront distortion, even under demanding industrial conditions.
- 100% Export Compliant: Engineered exclusively for commercial machine vision, metrology, and civilian laser applications. Completely Germanium-free and ITAR-free, ensuring a restriction-free, stable global supply chain for your assembly lines.
Technical Specifications
| Technical Parameter | Specification |
|---|---|
| Type | Non-Polarizing (NPBS) or Polarizing (PBS) |
| Substrate | Premium Optical Glass (K9/N-BK7) or UV Fused Silica |
| Dimensions | Custom (Typical range: 3mm x 3mm to 100mm x 100mm) |
| Dimensional Tolerance | ±0.1mm (Standard) / ±0.05mm (Precision)(Precision) |
| Split Ratio (T:R) | 50:50, 70:30, 90:10, or Fully Customized |
| Split Ratio Tolerance | ±5% (Standard) / ±2% (Precision) |
| Surface Quality | 40-20 to 20-10 Scratch-Dig |
| Surface Flatness | < λ/4 @ 632.8nm |
| Beam Deviation | < 3 arc minutes |
| Coating | Broadband AR on all Entrance/Exit faces; Custom Dielectric Beamsplitter Coating on Hypotenuse |
Product Overview
Built for Precision Instruments
Save space and simplify optical alignment. Beamsplitter cubes offer a distinct advantage over plate beamsplitters by virtually eliminating beam shift and astigmatism. Engineered to withstand the rigors of industrial environments, they allow engineers to build highly compact interferometers and coaxial illumination systems for Automated Optical Inspection (AOI).
Minimal Wavefront Distortion
Unwanted phase shifts and wavefront distortion can ruin interferometric measurements. Our cubes are manufactured from highly homogeneous optical glass, polished to strict flatness tolerances, and meticulously cemented to ensure the transmitted and reflected wavefronts remain exceptionally clean. Broadband AR coatings on all four outer faces eliminate ghost images and maximize total energy throughput.
Reliable, Risk-Free Supply
We understand the importance of supply chain stability in B2B manufacturing. By strictly focusing on civilian-use instrumentation and explicitly avoiding export-restricted materials like Germanium, our export processes are streamlined. We provide uninterrupted, globally compliant optical components direct to your factory floors and third-party assembly lines.
Metrology & Performance Reports
Figure 1: Non-Polarizing Beamsplitter (NPBS) Transmittance
Demonstrates a highly stable, polarization-insensitive 50:50 split ratio (50R/50T) across the broad UV-Visible spectrum (350-700nm), ensuring consistent energy division.
Metrology Analysis & Application Fit
- Target Wavelength: Broadband capability across Visible (VIS) or Near-Infrared (NIR) spectrums, or custom V-coats optimized for specific laser lines (e.g., 532nm, 633nm, 1064nm).
- Performance Index: Strict control over beam deviation (< 3 arc minutes) guarantees that the separated beams maintain perfect angular alignment within your optical architecture.
- Mechanical Precision: The perfect 90-degree cubic geometry provides a highly stable mechanical reference point, significantly simplifying the mounting process compared to plate beamsplitters.
- Primary Applications: Ideal for laser interferometry, optical coherence tomography (OCT), coaxial lighting in machine vision, biomedical imaging equipment, and complex laser alignment systems.
Custom Sub-Assembly & Engineering Services
Off-the-shelf cubes don’t always fit custom hardware. We specialize in bridging the gap between raw optical components and final instrument assembly. Whether you need the cubes pre-mounted in custom black-anodized aluminum housings, specific polarizing extinction ratios (Tp/Ts), or specific edge blackening to absorb stray light, our technical team is ready to optimize your vision systems.