Standard uncoated flat-parallel windows are fabricated from BK7 or UV grade fused silica optical glass. UV grade fused silica glass windows are a good option for UV, ultrashort pulse, and highpower laser applications due to their low sensitivity to temperature variations, relatively high damage threshold and UV transmission down to 185 nm. BK7 glass windows are a cost-effective choice for visible and nearinfrared range, low/mid-power laser and non-laser applications. These components are initially uncoated and demand metallic or dielectric coatings for a particular application. 4Lasers provide coating service upon request. Contact us for custom solutions and pricing.

Main features

■ Fabricated from high-quality UV grade fused silica, BK7 glasses

■ Optically polished surfaces

■ Available in round or rectangular shape with various thicknesses

■ Custom coated and uncoated windows are available upon request