BFI Optilas is offering a range of broadband low-dispersion polarisers and super-broadband polarising beamsplitter cubes.
The beamsplitter cubes are derived from a combination of IBS coatings, ultra-precise fabrication capabilities and patent-pending, epoxy-free bonding technology - chemically activated direct bonding (CADB), which results in a zero-bondline, zero-residue interface at the hypotenuse.
This means that they are environmentally stable and exhibit high laser damage thresholds in both reflection and transmission, making them ideal for high-power broadband, Nd:YAG and fibre laser applications where fluencies are greater than 500mJ/cm and calcite or cemented cube polarisers cannot be used.
The low-dispersion design offers an epoxy-free bandwidth from 700-1,000nm with a low GVD, dielectric coating that is designed for femtosecond laser applications.
The super broadband polariser cube maintains a more than 500:1 extinction ratio throughout the entire visible to near-infrared (400-1,100nm) without sacrificing overall transmission or damage threshold (more than 6J/cm).
