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Broadband Variable Attenuator for Femtosecond Laser Pulses

Broadband Variable Attenuator for Femtosecond Laser Pulses

Manual and motorized attenuators providing continuous beam splitting over 750-850 nm and 980-1080 nm broadband wavelength ranges. Consist of two thin film polarizers and a zero order air-spaced waveplate mounted into precision opto-mechanics.

from 1397 $
delivery Estimated delivery time: Request
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Manual version
Code Operating Range Configuration Price Delivery Add to cart
i 990-0070-800HBBi70 750-850 nm manual version 1397 $ Request
i 990-0070-1030HBBi70 980-1080 nm manual version 1397 $ Request
Motorized version
Code Operating Range Configuration Price Delivery Add to cart
i 990-0070-800HBBi70M 750-850 nm without controller & power supply 2255 $ Request
990-0070-800HBBi70M+CP 750-850 nm with controller & power supply 2915 $ Request
i 990-0070-1030HBBi70M 980-1080 nm without controller & power supply 2255 $ Request
990-0070-1030HBBi70M+CP 980-1080 nm with controller & power supply 2915 $ Request
Aperture diameter 12 mm
Operating bandwidth 100 nm
Damage treshold 50 mJ/cm2 pulsed at 800nm, 50fsec, 50Hz
Polarization contrast (after 1st polarizer) >1:200
Polarization contrast (after 2nd polarizer) >1:500
990-0070HBBi70 Broadband Variable Attenuators for Femtosecond Laser Pulses
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Variable attenuators / beamsplitters consist of precision opto-mechanics and optical components, providing continuous beam splitting over 750-850 nm or 980-1080 nm broadband wavelength ranges. Attenuators are available in manual or motorized versions.

 

Attenuators use two thin film polarizers operating at 70° angle of incidence, which reflect s-polarized light while transmitting p-polarized light. The angle of incidence can be adjusted by ±2° to achieve the maximum polarization contrast.

 

The intensity ratio of the two outgoing parallel beams may be continuously varied without alteration of other beam parameters. It can be done by rotating the quartz zero order air-spaced half wave plate housed into a rotating holder.

 

P-polarized beam is transmitted straightly with a shift of 2.6 mm. While s-polarized beam (after 2 reflections) is parallel to the outgoing p-polarized beam, just separated by 28 mm.