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April 14th 2011

New range of polarizers with low Group Velocity Dispersion.

Those polarizing beam splitter have been specifically designed for broadband femtosecond applications requiring high extinction and low dispersion. By utilizing a low dispersion coating design within an epoxy-free, fused silica prism assembly, this unique laser component is ideal for all Ti:Sapphire lasers used within the 700-1100 nm wavelength region.

Like our other standard prism polarizers, surface quality will be 20-10 or better with transmitted wavefront < λ/10 and a clear aperture > 10 mm. Low loss IBS BBAR coatings will be provided on the input and output faces.
Low GVD Cube polarizers

BFi OPTiLAS also offers dielectric coatings offering unique benefit over commonly used Metal mirrors for general-purpose broadband high reflectors which drawbacks include susceptibility to laser damage, mechanical abrasions and surface degradation. BFi OPTiLAS’s broadband dielectric coating covers a wide range or wavelengths (350-1100 nm) with >99% reflectivity, independent of both angle and polarization. The high-energy ion-beam-sputtering (IBS) process results in durable, dense dielectric films that have superior reflective and mechanical properties in addition to being easy to clean, scratch resistant and insensitive to environmental changes. With high damage thresholds (>5J/cm²) and low absorption, they are ideal for frequency doubled and tripled Nd:YAG lasers, fiber lasers and broadband or tunable laser applications.
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