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High power beamsplitter cube consists of a pair of precision right-angle prisms optically contacted together. No cement is used. The lack of cement at the interface means that the laser damage threshold is maximized. The four faces are antireflection coated with a multilayer dielectric coating to minimize surface reflection losses.
Features:
- Laser Damage Threshold: > 15J/cm2 @ 1064nm 20ns, 20Hz
- Epoxy-Free Optically Contacted at Beamsplitter Interface
- Excellent for High Energy Applications 
- Reflected and transmitted beams separated by 90°
High-Power PBS Cube Specifications:
|
Material |
UV Fused Silica |
|
Laser Damage Threshold |
> 15 J/cm2 @ 1064nm, 20ns, 20Hz |
|
Wavefront Distortion |
≤ λ/4 at 632.8 nm over the clear aperture |
|
Clear Aperture |
Central diameter, >90% of dimension |
|
Surface Quality |
20-10 Scratch-Dig |
|
Transmittance |
Tp > 97%, Rs >99.5% |
|
Extinction Ratio |
Tp/Ts > 1000:1 |
|
Transmitted Beam Deviation |
< 5 arc min |
|
Reflected Beam Deviation |
90° ± 5 arc min |
|
Dimensions Tolerance |
± 0.20 mm |
|
Antireflection Coating |
Multilayer coating, R < 0.25% per surface |
|
Standard Wavelength |
Narrow band: 355nm, 532nm, 632.8nm, 808nm, 980nm, 1064nm, 1310nm, 1550nm |
|
Broadband: 450-650nm, 650-900nm, 900-1200nm, 1200-1600nm |
|
|
Standard Dimension |
6.35x6.35x6.35mm, 10x10x10mm, 12.7x12.7x12.7mm, 15x15x15mm, 20x20x20mm, 25.4x25.4x25.4mm, |
Ordering Information: PBS-HP-Size-Wavelength