BK7 Window
BK7 is a pure optical borosilicate-crown glass material and is a high quality choice for a window, substrate or wafer. Mainly for the visible spectrum and near IR it is supplied for industrial, medical and high precision lower power laser applications with AR coatings applied for increased transmission. Used to protect elements and optical enclosures between two environments they are made from large blocks of stocked glass so can be polished to a wide size range.
Product Code:GA-BK7
Specification
| Product Name | BK7 Windows |
| Size | Customization, round or square are both ok |
| Flatness | 1/4λ |
| Material | N-BK7 |
| Surface quality | 60-40 |
| Thickness tolerance | ±0.10 |
BK7 Windows are used in laser applications to separate different environments from one another. Laser Windows are ideal for protecting work areas or sensitive components by deflecting harmful laser beams. LaserLine Windows use substrates, coatings, or a combination of the two to transmit specific wavelengths or ranges of wavelengths. LaserLine Windows can also be used to optimize laser transmissions by transmitting only the wanted wavelengths.
BK7 Windows are ideally suited for industrial and low power laser applications. The high tolerance design yields minimal beam distortion and scatter. Anti-reflection coatings provide <0.25% reflection at the coating’s design wavelengths.
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Tags: Optical Windows
