Variable Attenuator

AZURE provide two 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 energe farthest. As for the square one, the optical density linearly varies across the length for measuring laser energe.
Circular variable attenuator
>> Applications 
  • Detector of photon
  • Electronic image 
  • Optical instrumentation                               


Specifications


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

Note: Dimension, wavelength range ,OD or other request are available upon request.



Square variable attenuator



>> Applications 
  • Detector of photon
  • Electronic image 
  • Optical instrumentation         


Specifications

Material

BK7grade A optical glass, Fused silica               

Optical Density Range

OD0-OD2

linearity Density

OD±5%

Dimension 76.2*25.4*2.0mm

Coating

S1:Ni-Cr-Fe; S2:Boardband AR coating; incidence angle:0°-15°

Clear aperture

>80% diameter

Damage threshold

30 W/cm2 CW

Active wavelength 400-1100 nm


 Note:Dimension, wavelength range ,OD or other request are available upon request.


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