Variable Attenuators for Nd:YAG Linearly Polarized Laser Beam 990-0071

  • Divides laser beam into  two beams of manually adjustable intensity ratio separated by 68° angle
  • Large dynamic range
  • Transmitted beam shift ~0.5 mm
  • High optical damage treshold

Attenuation range for transmitted beam: 0.5%-95% Attenuation range for reflected beam: 5%-99.5%.

This variable attenuator/beamsplitter consists of special design opto-mechanical adapter for polarizer at 56° 840-0117A or 840-0118A and precision opto-mechanical holder 840-0197. Thin Film Brewster type polarizer, which reflect s-polarized light at 56° while transmitting p-polarized light, is housed into adapter for polarizer at 56°. Quartz Half Waveplates are housed in rotating holder 840-0197.

The intensity ratio of those two beams may be continuously varied without alteration of other beam parameters by rotating the waveplate. The intensity of either exit beam, or their intensity ratio, can be controlled over a wide dynamic range. P-polarization could be selected for maximum transmission, or high-purity s-polarization could be reflected when maximum attenuation of the transmitted beam takes place. The holder 840-0197 allows to adjust Angle Of Incidence of the Thin Film Brewster type polarizer by ±2° and to get the maximum polarization contrast.


Estimated delivery time: from 4 - 5 days

Code Wavelength Price Delivery Add to cart
990-0071-266 266 nm 561 $ 4 - 5 days To cart
990-0071-355 355 nm 523 $ 4 - 5 days To cart
990-0071-532 532 nm 490 $ 4 - 5 days To cart
990-0071-1064 1064 nm 490 $ 4 - 5 days To cart


Aperture diameter 10 mm
Damage threshold >5 J/cm2 pulsed at 1064 nm, typical
Polarization Contrast >1:200
solidworks Variable Attenuator - Solidworks file
step Variable Attenuator - STEP file


If you would like to review 3D drawings additional software is required. For a quick review of the drawings, we recommend CadFaster - QuickSetup - free software that allows you to view 3D files.
Please follow this link to download the program.

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