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Motorized Variable Attenuator for Femtosecond and Nd:YAG Laser Pulses 990-0072M

Motorized Variable Attenuator for Femtosecond and Nd:YAG Laser Pulses 990-0072M

Motorized variable attenuators with ø 22 mm clear aperture, composed of thin film polarizers, half waveplates and opto-mechanics for easy setup. Motorized rotation of the waveplate allows continuous variation of the intensity ratio of the output beams.

from 1480 $
delivery Estimated delivery time: 5 - 7 days
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Description
Wavelength
Damage threshold
Remove all filters
For Nd:YAG Laser Pulses
Code Wavelength Damage threshold Configuration Price Delivery Add to cart
990-0072-355M 355 nm >5 J/cm², 10 ns, 10 Hz @ 1064 nm without controller & power supply 1513 $ Request
990-0072-355M+CP 355 nm >5 J/cm², 10 ns, 10 Hz @ 1064 nm with controller & power supply 2173 $ Request
990-0072-532M 532 nm >5 J/cm², 10 ns, 10 Hz @ 1064 nm without controller & power supply 1480 $ Request
990-0072-532M+CP 532 nm >5 J/cm², 10 ns, 10 Hz @ 1064 nm with controller & power supply 2140 $ Request
990-0072-1064M 1064 nm >5 J/cm², 10 ns, 10 Hz @ 1064 nm without controller & power supply 1502 $ Request
990-0072-1064M+CP 1064 nm >5 J/cm², 10 ns, 10 Hz @ 1064 nm with controller & power supply 2162 $ Request
For Femtosecond Laser Pulses
Code Wavelength Damage threshold Configuration Price Delivery Add to cart
990-0072-343M 343 nm >10 mJ/cm², 50 fs @ 800 nm without controller & power supply 1656 $ Request
990-0072-343M+CP 343 nm >10 mJ/cm², 50 fs @ 800 nm with controller & power supply 2316 $ Request
990-0072-400M 400 nm >10 mJ/cm², 50 fs @ 800 nm without controller & power supply 1623 $ Request
990-0072-400M+CP 400 nm >10 mJ/cm², 50 fs @ 800 nm with controller & power supply 2283 $ Request
990-0072-515M 515 nm >10 mJ/cm², 50 fs @ 800 nm without controller & power supply 1623 $ Request
990-0072-515M+CP 515 nm >10 mJ/cm², 50 fs @ 800 nm with controller & power supply 2283 $ Request
990-0072-800M 800 nm >10 mJ/cm², 50 fs @ 800 nm without controller & power supply 1639 $ Request
990-0072-800M+CP 800 nm >10 mJ/cm², 50 fs @ 800 nm with controller & power supply 2299 $ Request
990-0072-800BM 780-820 nm >10 mJ/cm², 50 fs @ 800 nm without controller & power supply 1749 $ Request
990-0072-800BM+CP 780-820 nm >10 mJ/cm², 50 fs @ 800 nm with controller & power supply 2409 $ Request
990-0072-1030M 1030 nm >10 mJ/cm², 50 fs @ 800 nm without controller & power supply 1650 $ Request
990-0072-1030M+CP 1030 nm >10 mJ/cm², 50 fs @ 800 nm with controller & power supply 2310 $ Request
990-0072-1030BM 1010-1050 nm >10 mJ/cm², 50 fs @ 800 nm without controller & power supply 1760 $ Request
990-0072-1030BM+CP 1010-1050 nm >10 mJ/cm², 50 fs @ 800 nm with controller & power supply 2420 $ Request
For High Power Laser Applications
Code Wavelength Damage threshold Configuration Price Delivery Add to cart
990-0072-266HM 266 nm >100 mJ/cm², 50 fs @ 800 nm without controller & power supply 1920 $ Request
990-0072-266HM+CP 266 nm >100 mJ/cm², 50 fs @ 800 nm with controller & power supply 2580 $ Request
990-0072-343HM 343 nm >100 mJ/cm², 50 fs @ 800 nm without controller & power supply 1859 $ Request
990-0072-343HM+CP 343 nm >100 mJ/cm², 50 fs @ 800 nm with controller & power supply 2519 $ Request
990-0072-400HM 400 nm >100 mJ/cm², 50 fs @ 800 nm without controller & power supply 1826 $ Request
990-0072-400HM+CP 400 nm >100 mJ/cm², 50 fs @ 800 nm with controller & power supply 2486 $ Request
990-0072-515HM 515 nm >100 mJ/cm², 50 fs @ 800 nm without controller & power supply 1826 $ Request
990-0072-515HM+CP 515 nm >100 mJ/cm², 50 fs @ 800 nm with controller & power supply 2486 $ Request
990-0072-800HM 800 nm >100 mJ/cm², 50 fs @ 800 nm without controller & power supply 1843 $ Request
990-0072-800HM+CP 800 nm >100 mJ/cm², 50 fs @ 800 nm with controller & power supply 2503 $ Request
990-0072-800HBM 780-820 nm >100 mJ/cm², 50 fs @ 800 nm without controller & power supply 1953 $ Request
990-0072-800HBM+CP 780-820 nm >100 mJ/cm², 50 fs @ 800 nm with controller & power supply 2613 $ Request
990-0072-1030HM 1030 nm >100 mJ/cm², 50 fs @ 800 nm without controller & power supply 1854 $ Request
990-0072-1030HM+CP 1030 nm >100 mJ/cm², 50 fs @ 800 nm with controller & power supply 2514 $ Request
990-0072-1030HBM 1010-1050 nm >100 mJ/cm², 50 fs @ 800 nm without controller & power supply 1964 $ Request
990-0072-1030HBM+CP 1010-1050 nm >100 mJ/cm², 50 fs @ 800 nm with controller & power supply 2624 $ Request
Rotation resolution: in full step mode
in 1/8 step mode

0.6 arcmin
4.5 arcsec
Max. rotation speed 50 deg/s

 

For Nd:YAG Laser Applications

Aperture diameter 22 mm
Damage threshold >5 J/cm2 pulsed at 1064 nm, typical
Polarization Contrast >1:200


For Femtosecond Applications

Aperture diameter 22 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

 

Recommended Setup

Controller 980-1045
Power supply PS12-2.5-4

 Above mentioned controller and power supply are included into attenuator kit with code ending "+CP".

EKSMA Optics 990-0072M Motorized Variable Attenuators
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  • Divides laser beam into two beams of manually adjustable intensity ratio separated by 68° angle
  • Large dynamic range
  • Transmitted beam shift ~1 mm
  • High optical damage threshold

 

This variable attenuator/beamsplitter consists of UV FS Thin Film Brewster Type Polarizer diameter 50.8 mm, which reflect s-polarized light while transmitting p-polarized light, that is housed into Beamsplitter Mount 840-0056-12 and a quartz Zero Order (optically contacted) Half Waveplate diameter 25.4 mm (for femtosecond applications) or Zero-Order Air-Spaced Half Waveplate (for high power applications) housed in rotating Polarizer Holder 840-0190-01, placed in the incident linearly polarized laser beam.

 

The intensity ratio of those two separated and different polarized 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.

 

840-0056-12 Kinematic Mount allows to adjust angle of incidence (AOI) of the thin film Brewster type polarizers by ±4.5° and to get the maximum extinction contrast. The mounts are on rods, rod holders and movable base 820-0090.

 

The optical axis height from the table top can be adjusten in the range of 78-88 mm. Other height can be offered as custom changing the standard rods and rod holders into higher.