Product added to cart
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

25.4mm Dia., 6.35mm Thick, 355nm, Nd:YAG IBS Laser Line Window

TECHSPEC® IBS Laser Line Windows

Stock #12-969 3-4 days
Quantity Selector - Use the plus and minus buttons to adjust the quantity. +
Qty 1-5
Qty 6+
Volume Pricing
Request Quote
Prices shown are exclusive of VAT/local taxes
Get Product Downloads
Angle of Incidence (°):
Protective as needed
Clear Aperture CA (mm):
Laser Ultra V-Coat, IBS (355nm)
Coating Specification:
Rabs <0.10% @ 355nm
Diameter (mm):
25.40 +0.00/-0.10
Thickness (mm):
6.35 ±0.20
Design Wavelength DWL (nm):
Parallelism (arcmin):
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Fused Silica (Corning 7980)
Fused Silica Grade:
7980 0F
Surface Flatness (P-V):
Surface Quality:
Laser Line Window
Young's Modulus (GPa):
Coefficient of Thermal Expansion CTE (10-6/°C):
0.52 (+5 to +35°C)
0.57 (0 to +200°C)
0.48 (-100 to +200°C)
Density (g/cm3):
Index of Refraction nd:
Poisson's Ratio:
Abbe Number (vd):
Fine Ground
Damage Threshold, Certified: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification.
7.5 J/cm2 @ 355nm, 20ns, 20Hz

Regulatory Compliance

Certificate of Conformance:

Product Family Description

  • IBS Coated for Minimal Absorption and Scatter
  • <0.1% Reflectivity at Nd:YAG Laser Lines
  • Certified Laser Damage Thresholds at Design Wavelength

TECHSPEC® IBS Laser Line Windows feature an ion beam sputtering (IBS) anti-reflection coating that provides <0.1% reflectivity at their design wavelength with minimal losses due to absorption or scatter. The IBS coating process produces dense, homogeneous coating layers that are environmentally stable and insensitive to temperature and humidity changes, enabling these windows to be used in harsh environments. TECHSPEC IBS Laser Line Windows are available in standard imperial sizes with designs for the Nd:YAG laser wavelengths of 355nm, 532nm, and 1064nm. In-house manufacturing enables Edmund Optics to provide custom sizes and designs in the wavelength range 343nm to 1600nm.

Superpolished Optics for Minimized Scatter

Learn More