Variable Attenuator for Femtosecond Linearly Polarized Laser Beam 990-0070

  • Divides laser beam into two parallel beams of manually adjustable intensity ratio
  • Large dynamic range
  • Negligible transmitted beam deviation
  • 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.

Delivery

Estimated delivery time: from 4 - 5 days

Wavelength

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
990-0070-343 343 nm 1092 $ Request To cart
990-0070-400 400 nm 962 $ Request To cart
990-0070-400B 390-410 nm 1157 $ Request To cart
990-0070-515B 505-525 1157 $ Request To cart
990-0070-515 515 nm 962 $ Request To cart
990-0070-800 800 nm 962 $ 4 - 5 days To cart
990-0070-800B 780-820 nm 1157 $ 4 - 5 days To cart
990-0070-1030 1030 nm 962 $ Request To cart
990-0070-1030B 1010-1050 1157 $ Request To cart

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

Code Wavelength Price Delivery Add to cart
990-0070-266H 266 nm 1326 $ Request To cart
990-0070-343H 343 nm 1190 $ Request To cart
990-0070-400H 400 nm 1060 $ 4 - 5 days To cart
990-0070-400HB 390-410 nm 1255 $ Request To cart
990-0070-515H 515 nm 1060 $ 4 - 5 days To cart
990-0070-515HB 505-525 1255 $ Request To cart
990-0070-800H 800 nm 1060 $ 4 - 5 days To cart
990-0070-800HB 780-820 nm 1255 $ 4 - 5 days To cart
990-0070-1030H 1030 nm 1060 $ 4 - 5 days To cart
990-0070-1030HB 1010-1050 nmn 1255 $ 4 - 5 days To cart
Delicious
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
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