Available Options
The 10FC16PB.5 Broadband Polarizing Cube Beamsplitter provides efficient polarization for use with multiple or tunable sources. The 25.4 mm cube polarizer consists of a pair of precision right-angle prisms carefully cemented together to minimize wavefront distortion. The hypotenuse of one of the prisms is coated with a multilayer dielectric polarizing beamsplitter coating optimized for a 620 to 1000 nm wavelength range. The four faces are antireflection coated with a multilayer dielectric coating to minimize surface reflection losses.
An unpolarized beam is split into two orthogonal, linearly polarized components. P-polarized light is transmitted, while s-polarized light is reflected, both with negligible absorption. The extinction ratio is better than 500:1, yet it averages 1000:1. This unique component provides all the benefits of a broadband polarizer in a standard cube configuration.
feature | |
Angle of Incidence | 0°±5° |
Antireflection Coating | 620-1000 nm |
Cleaning | See How to Clean Optics |
Clear Aperture | >80% of central dimension |
Coating Code | PB.5 |
Damage Threshold | 2000 W/cm2 CW, 1 J/cm2 with a 10 nsec pulse, typical |
Durability | MIL-C-675C, moderate abrasion million cycles |
Efficiency | Tp >80%, >90% average, Rs >99.5% average |
Extinction Ratio | Tp/Ts >500:1, 1000:1 average |
Material | SF 2, NSSK grade |
Operating Temperature Range | -50 to 90°C |
Orientation | To avoid damage, beam should enter prism marked with a dot |
Reflected Beam Deviation | 90° ±5 arc min |
Shape | Cube |
Size | 25.4 x 25.4 x 25.4 mm |
Size Tolerance | ±0.254 mm |
Surface Flatness | ≤λ/4 at 632.8 nm |
Surface Quality | 20-10 scratch-dig |
Transmitted Beam Deviation | ≤5 arc min |
Wavefront Distortion | ≤λ/4 at 632.8 nm over the clear aperture |