• Laser-grade, suitable for the most demanding applications

• ≤λ/20 surface flatness and 10-5 scratch-dig

• Parallel to less than 30 arc sec for minimal transmitted beam deviation

• High quality Grade A N-BK7

• Broadband AR coatings for visible, or NIR applications 

Our laser grade optical windows have excellent < 30 arc-seconds parallelism resulting in minimal transmitted beam deviation. The windows are available with broadband AR coatings on both sides for use in visible or IR applications.