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.