Variable Attenuator

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.

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.

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

◆Portable variable attenuator

Specifications: Dimensions: Φ33 mm ×65 (L) mm Wavelength: 400-1100 nm (Other wavelengths can be customized)