Variable Attenuators for 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 threshold
  • 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. The 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.

 

Note: Solid Base Height Extender 820-0210 and Standard Rod 820-0020-20 should be ordered separately.

Delivery

Estimated delivery time: from 4 - 5 days

Wavelength

For Nd:YAG Laser Application

Multi order half waveplate is housed in rotating holder 840-0197 for Nd:YAG laser pulses (laser damage threshold: 5 J/cm² pulsed at 1064 nm, typical).

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

For Femtosecond Applications

Zero order optically contacted half waveplate  is housed in rotating holder 840-0197 for femtosecond laser pulses (laser damage threshold: >10 mJ/cm², 50 fs pulse at 800 nm, typical)

Code Wavelength Price Delivery Add to cart
990-0071-343 343 nm 660 $ 4 - 5 days To cart
990-0071-400 400 nm 605 $ Request To cart
990-0071-400B 390-410 nm 715 $ Request To cart
990-0071-515 515 nm 605 $ 4 - 5 days To cart
990-0071-515B 505-525 nm 715 $ Request To cart
990-0071-800 800 nm 605 $ Request To cart
990-0071-800B 780-820 nm 715 $ 4 - 5 days To cart
990-0071-1030 1030 nm 605 $ 4 - 5 days To cart
990-0071-1030B 1010-1050 nm 715 $ Request To cart

For High Power Femtosecond Laser Applications

Zero Order Air-Spaced half waveplate  is housed in rotating holder 840-0197 for high power femtosecond applications (laser damage threshold: >100 mJ/cm², 50 fs pulse at 800 nm, typical)

Code Wavelength Price Delivery Add to cart
990-0071-266H 266 nm 759 $ 4 - 5 days To cart
990-0071-343H 343 nm 732 $ 4 - 5 days To cart
990-0071-400H 400 nm 677 $ 4 - 5 days To cart
990-0071-400HB 390-410 nm 787 $ Request To cart
990-0071-515H 515 nm 677 $ 4 - 5 days To cart
990-0071-515HB 505-525 nm 787 $ 4 - 5 days To cart
990-0071-800H 800 nm 677 $ 4 - 5 days To cart
990-0071-800HB 780-820 nm 787 $ 4 - 5 days To cart
990-0071-1030H 1030 nm 677 $ Request To cart
990-0071-1030HB 1010-1050 nm 787 $ 4 - 5 days To cart
Delicious

For Nd:YAG Laser Applications

Aperture diameter 10 mm
Damage threshold 5 J/cm2 pulsed at 1064 nm, typical
Polarization Contrast >1:200


For Femtosecond Applications

Aperture diameter 10 mm
Damage threshold
            for high power laser applications:
>10 mJ/cm2, 50 fs pulse at 800 nm, typical
>100 mJ/cm2, 50 fs pulse at 800 nm, typical
Time dispersion t<4 fs for 100 fs Ti:Sapphire laser pulses
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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