Optical Window - Bk7, Fused Silica, Sapphire, Caf2 | High Transmission, Thermal Stability, Chemical Resistance

We are prominent manufacturer and exporter of Optical Window. Optical Window is a piece of glass with plane parallel surfaces. It is used to isolate different physical environments while allowing light to pass. The environments may vary widely in temperature, pressure, chemical composition, phase or cleanliness. Advance Optics offers a wide range of sizes and materials including BK7, UV Fused Silica, Crystal Quartz, Sapphire, MgF2, CaF2, Silicon(Si), Germanium(Ge), etc.

1. BK7 Window:
BK7 is a borosilicate crown optical glass with high homogeneity and low bubble and inclusion content. It is good performance over visible and near IR spectrum for most application.

2. Fused Silica Window:
Fused silica is formed by chemical combination of silicon and oxygen. Advantages of fused silica material include good UV and IR transmission, low thermal expansion, providing stability and resistance to thermal shock and high laser damage threshold.

3. Sapphire Window:
Sapphire is a single crystal aluminum oxide or Al2O3 and is one of the hardest materials. It has good transmission characteristics over the visible and near IR spectrum. Sapphire exhibits high mechanical strength, chemical resistance and thermal stability.

4. CaF2 Window:
CaF2 is a crystal, which has good transmission from 170 nm to 7800 nm. It's slightly soluble in water and susceptible to thermal shock. It is commonly used in IR components.