12.5mm Dia., VIS-NIR Coated, 30′ Wedge, Fused Silica Wedged Window

Product Details UV Fused Silica Substrates with a 30 Arcminute Wedge λ/10 Surface Flatness and 20-10 Surface Quality Prevent Laser Instability When Used in Laser Cavities N-BK7 Wedged Windows and Fused Silica Flat Windows Also Available TECHSPEC Fused Silica Wedged Windows are manufactured from UV grade fused silica and feature a 30 arcminute wedge. The wedge of these windows eliminates Etalon effects by preventing back surface reflections from traveling along the same optical path as the transmitted beam. This protects against laser instability, mode-hopping, and power spikes when used in laser cavities and beam interference effects when used externally. TECHSPEC Fused Silica Wedged Windows are ideal for use in UV or high power laser applications due to their high UV transmittance and insensitivity to temperature variations. These windows can also be used as beam pick-off optics or beam samplers to monitor laser beam properties such as beam power over time. Specifications General Type: Wedged Window Type of Window: Glass Physical & Mechanical Properties Clear Aperture CA (mm): 11.25 Diameter (mm): 12.50 +0.0/-0.10 Thickness (mm): 3.00 ±0.20 Edges: Fine Ground Young’s Modulus (GPa): 73 Wedge Angle (arcmin): 30′ ±10′ Optical Properties Coating: VIS-NIR (400-1000nm) Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Fused Silica (Corning 7980) Index of Refraction (n d ): 1.458 Surface Quality: 20-10 Coating Specification: R abs ≤0.25% @ 880nm R avg ≤1.25% @ 400 – 870nm R avg ≤1.25% @ 890 – 1000nm Wavelength Range (nm): 400 – 1000 Surface Flatness (P-V): λ/10 Damage Threshold, Reference: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification. 5 J/cm 2 @ 532nm, 10ns Material Properties 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) Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 235: Compliant ×