Description
Overview
GAOTek circle portable variable attenuator provides 3 kinds of variable attenuators for different application. The circular variable attenuator can make the optical density linearly varies around a 0° to 270° circle for measuring laser energy farthest. As for the square one, the optical density linearly varies across the length for measuring laser energy. Also, the high-power variable attenuator is available for customization.
Technical Specifications
| Material | BK7 grade A optical glass, Fused silica |
| Optical Density Range | OD0 to OD3 |
| Outside Diameter | Φ2.13 in (54 mm) ± 0.25 |
| Linearity of Density | ±5% at 632.8 nm |
| Coating | S1: Ni or Cr or Fe; S2: Broadband AR coating; incidence angle: 0° to 15° |
| Clear Aperture | >80% diameter |
| Damage Threshold | 30 W/cm2 CW |
| Active Wavelength | 400 nm to 1100 nm |
| Applicable Power | <1000 mW |