Polarization beamsplitter cubes are constructed by cemented two right angle prisms, the hypotenuse of one prism is coated with polarization dielectric coating.
When used with normal incident, un-polarized light, the incident beam is separated into two polarized beams, p-polarized component is passed straight through, s-polarized component is reflected out at 90deg.
Specifications:
| Material: | BK7 grade A optical glass |
| Dimension Tolerance: | +0.2, -0.2mm |
| Thickness Tolerance: | ±0.2mm |
| Surface quality: | 60/40 |
| Clear Aperture: | >85% |
| Flatness: | λ/4 per 25mm@633nm |
| Parallelism: | ±3' |
| Bevel: | <0.25mm X 45° |
| Coating: | Hypotenuse surface :Polarization dielectric coating , Entrance/Exit surfaces :AR coating |
| 1.Laser line (Extinction Ratio 500:1) ,AOI= 0°: Tp>96% and Ts<0.2% Rp<4% and Rs>99.7% |
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| 2.Broadband wavelength (Extinction Ratio: 200:1) ,AOI= 0°: Tp>95% and Ts<0.5% Rp<5% and Rs>99.5% |
Typical Sizes:
| Size(mm) | Size(mm) |
| 5.0x5.0x5.0 | 18.0x18.0x18.0 |
| 10.0x10.0x10.0 | 20.0x20.0x20.0 |
| 12.7x12.7x12.7 | 25.4x25.4x25.4 |
| 15.0x15.0x15.0 | 30.0x30.0x30.0 |