Variable Attenuator
CNI provides 3 kinds of variable attenuators for different application.The circular variable attenuator can make the optical density linearly varies around a 0°-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.
◆Circular variable attenuator |
 | Applications: Detector of photon Electronic image Optical instrumentation |
Specification
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/cm2 CW |
Active wavelength | 400-1100 nm |
Applicable power | <1000 mW |
Note: Dimension, wavelength range, OD or other request are available upon request.
◆Square variable attenuator |
 | Applications: Electronic image Detector of photon Optical instrumentation |
Specification
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/cm2 CW |
Active wavelength | 400-1100 nm |
Note: Dimension, wavelength range, OD or other request are available upon request.
◆Portable variable attenuator |
 | Specifications: Dimensions: Φ33 mm ×65 (L) mm Wavelength: 400-1100 nm (Other wavelengths can be customized) |