| Model | VA-C |
| Material | BK7grade A optical glass, Fused silica |
| Optical Density Range | OD0-OD3 |
| Outside Diameter | Φ54mm±0.25 |
| Dimension | 54*42*67mm |
| Linearity of Density | ±5%@632.8nm |
| Coating | S1:Ni-Cr-Fe; S2:Boardband AR coating; incidence angle:0°-15° |
| Clear aperture | >80% diameter |
| Damage threshold | 30W/cm 2 CW |
| Active wavelength | 400-1100 nm |
| Applicable power | <1000 mW |
| Model | VA-S |
| Material | BK7grade A optical glass, Fused silica |
| Optical Density Range | OD0-OD2 |
| Dimension | 76.2*25.4*2.0mm |
| Linearity of Density | OD±5% |
| Coating | S1:Ni-Cr-Fe; S2:Boardband AR coating; incidence angle:0°-15° |
| Clear aperture | >80% diameter |
| Damage threshold | 30W/cm 2 CW |
| Active wavelength | 400-1100 nm |
Specifications:
| Model | VA-P |
| Dimensions | Φ33 mm ×65 (L) mm |
| Wavelength | 400-1100 nm (Other wavelengths can be customized) |
| Model | ATT-45 | ATT-20 |
| Attenuation wavelength | 1.064 μm | |
| Limiting aperture | ≤ 5mm | |
| Polarization state | Suitable for P polarization | |
| Dynamic adjustment range | 0~ 4 5 dB (customizable) | 0~20 dB (customizable) |
| Step width | ≤ 1 dB | |
| Control precision | better than 0.5dB | better than 1dB |
| Damage threshold | ≥2J/cm 2 | ≥2J/cm 2 @20ns |
| Fastest adjustment speed | ≥ 3 dB/s | ≥ 1 dB/s |
| I nsertion loss | 10% | |
| Communication interface | RS 232/ 422 /485 | RS 232 |
| Power supply | DC 24V |