Beam Separator
KEY FEATURES
- High isolation
- Large diameters available
- Low transmitted wavefront distortion
DESCRIPTION
Meadowlark Optics’ Beam Separators are designed for laser line applications and consist of a true zero-order quarter-wave retarder aligned with its fast axis at 45° to the transmission axis of a Laser Line Beamsplitting Polarizer. The transmitted beam is circularly polarized, regardless of the input beam polarization state. Our true zero-order Precision Retarders are quarter-wave within ± λ/350 and aligning the fast axis to within 1° ensures greater than 99.8% source isolation from specular back reflections.
| Specifications - Beam Separator | |
| Standard Wavelengths | 532, 632.8, 670, 780, 850, 1064, and 1550 nm |
| Substrate Material | N-BK7 |
| Transmitted Wavefront Distortion(P-V @ 632.8 nm) | ≤ λ/5 |
| Surface Quality (scratch-dig) | 40-20 |
| Beam Deviation | ≤ 3 arc-min |
| Reflectance (per surface, at normal incidence) | ≤ 0.5% |
| Acceptance Angle | ± 2˚ |
| Storage Temperature Range | -20˚C to +50˚C |
| Operating Temperature | -20˚C to +50˚C |
| Laser Damage Threshold | 500 W/cm2, CW 300 mJ/cm2, 10 ns, visible 200 mJ/cm2, 10 ns, 1064 nm |
| Ordering Information - Beam Separator | |||
|
Clear Aperture in. [mm] |
Cube Dimensions ± 0.020 in. [± 0.51 mm] |
Part Number | |
|
0.40 [10.2] |
0.50 × 0.50 × 0.50 [12.7 x 12.7 x 12.7] |
BS-050-λ | |
|
0.80 [20.3] |
1.00 × 1.00 × 1.00 [25.4 × 25.4 × 25.4] |
BS-100-λ | |
|
Please substitute your wavelength in nanometers for λ. Custom sizes and wavelengths, over 400-1600 nm are available. Please contact our Sales Engineers to obtain a custom quote. |
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