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Variable Attenuators for Linearly Polarized Laser Beam 990-0070

Variable Attenuators for Linearly Polarized Laser Beam 990-0070

Variable attenuators with ø 17 mm clear aperture composed of two thin film Brewster type polarizers and a waveplate mounted into precision opto-mechanics. Attenuator design allows to control the intensity between two exit beams over a wide dynamic range.

from 715 $
delivery Estimated delivery time: 4 - 5 days
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Description
Wavelength
Laser damage threshold
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For Nd:YAG Laser Application
Code Wavelength Laser damage threshold Price Delivery Add to cart
990-0070-355 355 nm 5 J/cm² @ 1064 nm, 10 ns, 10 Hz 825 $ 4 - 5 days
990-0070-532 532 nm 5 J/cm² @ 1064 nm, 10 ns, 10 Hz 715 $ 4 - 5 days
990-0070-1064 1064 nm 5 J/cm² @ 1064 nm, 10 ns, 10 Hz 715 $ 4 - 5 days
For Femtosecond Applications
Code Wavelength Laser damage threshold Price Delivery Add to cart
990-0070-257 257 nm 10 mJ/cm² @ 800 nm, 50 fs 1040 $ Request
990-0070-266 266 nm 10 mJ/cm² @ 800 nm, 50 fs 1040 $ 4 - 5 days
990-0070-343 343 nm 10 mJ/cm² @ 800 nm, 50 fs 924 $ Request
990-0070-400 400 nm 10 mJ/cm² @ 800 nm, 50 fs 814 $ 4 - 5 days
990-0070-400B 390-410 nm 10 mJ/cm² @ 800 nm, 50 fs 979 $ Request
990-0070-515 515 nm 10 mJ/cm² @ 800 nm, 50 fs 814 $ Request
990-0070-515B 505-525 nm 10 mJ/cm² @ 800 nm, 50 fs 979 $ Request
990-0070-800 800 nm 10 mJ/cm² @ 800 nm, 50 fs 814 $ 4 - 5 days
990-0070-800B 780-820 nm 10 mJ/cm² @ 800 nm, 50 fs 979 $ Request
990-0070-1030 1030 nm 10 mJ/cm² @ 800 nm, 50 fs 814 $ Request
990-0070-1030B 1010-1050 nm 10 mJ/cm² @ 800 nm, 50 fs 979 $ Request
For High Power Femtosecond Laser Applications
Code Wavelength Laser damage threshold Price Delivery Add to cart
990-0070-257H 257 nm 100 mJ/cm² @ 800 nm, 50 fs 1122 $ 4 - 5 days
990-0070-266H 266 nm 100 mJ/cm² @ 800 nm, 50 fs 1122 $ Request
990-0070-343H 343 nm 100 mJ/cm² @ 800 nm, 50 fs 1007 $ Request
990-0070-400H 400 nm 100 mJ/cm² @ 800 nm, 50 fs 897 $ 4 - 5 days
990-0070-400HB 390-410 100 mJ/cm² @ 800 nm, 50 fs 1062 $ 4 - 5 days
990-0070-515H 515 nm 100 mJ/cm² @ 800 nm, 50 fs 897 $ 4 - 5 days
990-0070-515HB 505-525 nm 100 mJ/cm² @ 800 nm, 50 fs 1062 $ Request
990-0070-800H 800 nm 100 mJ/cm² @ 800 nm, 50 fs 897 $ 4 - 5 days
990-0070-800HB 780-820 nm 100 mJ/cm² @ 800 nm, 50 fs 1062 $ Request
990-0070-1030H 1030 nm 100 mJ/cm² @ 800 nm, 50 fs 897 $ Request
990-0070-1030HB 1010-1050 nm 100 mJ/cm² @ 800 nm, 50 fs 1062 $ 4 - 5 days

For Nd:YAG Applications 

Aperture diameter 17 mm
Damage threshold 5 J/cm2 pulsed at 1064 nm, typical
Polarization Contrast (after 1st polarizer) >1:200
Polarization Contrast (after 2nd polarizer) >1:500

  

For Femtosecond Applications  

Aperture diameter 17 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 (after 1st polarizer)  >1:200
Polarization Contrast (after 2nd polarizer)  >1:500

 

990-0070 Variable Attenuators for Linearly Polarized Laser Beam
325.83 kB
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  • Divides laser beam into two parallel beams of manually adjustable intensity ratio
  • Large dynamic range
  • Transmitted beam shift ~0.5 mm
  • High optical damage threshold
  • S-Pol attenuation range ~ 0.25% - 99.0%
  • P-Pol attenuation range ~ 0.5 % - 95.0 %  

This Variable Attenuator / Beamsplitter consists of special design Opto-mechanical Adapter and Precision Opto-mechanical Holder 840-0197. Two Thin Film Brewster type polarizers, which reflect s-polarized light while transmitting p-polarized light, are housed into Adapter. 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 polarizers by ±2° and to get the maximum polarization contrast.

 

Note: Movable base 820-0090, Rod Holder 820-0050-02 and standard rod should be ordered separately.