From UV to VIS to IR wavelength, we have Fused Silica (WFS)/BK7 (WBK) optical windows,
which are known for its low coefficient of thermal expansion, it has a high transmittance for
light from ultraviolet to the near-infrared range, low scattering, and excellent cost-effectiveness.
Coated Fused Silica windows are widely used in fiber laser cutting and welding systems.
Diameter Tolerance: +0/-0.25mm
Thickness Tolerance: ±0.25mm
Parallelism: ≤ 10arcsec or 30 ± 5arcmin
Clear Aperture: ≥ 85% of central diameter
Surface Quality: 10–5 Scratch & Dig
AR Coating: R≤0.25% per surface @ 1064nm (Single Wavelength) | R≤0.3% @ 1064nm (Dual Wavelength)
Damage Threshold: 10J/cm2, 10ns, 20Hz @ 1064nm (Single Wavelength) | 3.5J/cm2, 10ns, 20Hz @ 532nm (Dual Wavelength) | 7J/cm2, 10ns, 20Hz @ 1064nm (Dual Wavelength)