PDG-2174/800-801

Grating-based polarizer for Ti:sapphire wavelengths. For high energy, ultrafast laser applications, common polarizer technologies used for variable attenuation do not fulfill the complete set of requirements to extinction ratio, transmission level, bandwidth, transmitted wavefront distortion, GDD ripple and energy handling capability. For these applications, and initially developed solely for Ti:sapphire wavelengths, Ibsen offers a unique, grating-based polarizer. The polarizer is 100% fused silica, with the polarizing grating being a surface relief, etched grating structure with no thin-film coatings of any kind.  
ParameterSpecification
Central wavelength of operation800 nm
Angle of incidence59.5 deg (nominal, to be rotated for optimal contrast and for attenuation)
Non-deflected polarizationTM (p)
Extinction ratio 0T (TM:TE)>50:1 (contact us for >100:1)
Transmission 0T (TM)>95% (contact us for >99%)
Material100% fused silica, no thin film coatings
Grating size36 mm x 18 mm
Substrate size38 mm x 20 mm
Substrate thickness1 mm

4.990,00

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