W Series windows are often used as vacuum seals in front of the output coupler or in other parts of a system that require sealing of vacuum or high pressure. ZnSe is typically used for this application and can be provided coated or uncoated. AR coating provides >98.5% transmission and reflection <.25% per surface at 10.6 microns. Absorption values do not exceed .25%.

Other diameters, thicknesses and wavelengths are available upon request.



Fiber laser optics made in the USA

Orders from stock typically ship in 3-5 days. Manufacturing lead time can be 2-3 weeks. Please call the factory for expedited delivery or quantity discounts.

Showing 13–24 of 31 results

Catalog No. Material Diameter Thickness Coating Price Order
W-2012-Z-UC ZnSe2.000"0.120"Uncoated$225.00
W-2020-Z-AR ZnSe2.000"0.200"AR/AR$350.00
W-2020-Z-UC ZnSe2.000"0.200"Uncoated$285.00
WM-2503-Z-AR ZnSe25.00mm3.00mmAR/AR$165.00
WM-2503-Z-UC ZnSe25.00mm3.00mmUncoated$130.00
WM-3803-Z-AR ZnSe38.00mm3.00mmAR/AR$175.00
WM-3803-Z-UC ZnSe38.00mm3.00mmUncoated$160.00
WM-5003-Z-AR ZnSe50.00mm3.00mmAR/AR$265.00
WM-5003-Z-UC ZnSe50.00mm3.00mmUncoated$220.00
WM-5005-Z-AR ZnSe50.00mm5.00mmAR/AR$345.00
WM-5005-Z-UC ZnSe50.00mm5.00mmUncoated$285.00