Windows & Wedges

Optical Windows are optical components often used to isolate other optical components from the environment, for beam sampling and for polarization and dispersion control.

Product	Wavelength Range	Clear Aperture	Substrate	Availability	Price (USD)
Flat Window	1200 - 8000 nm (Uncoated)	> 11.43 mm	Silicon	2 weeks	$ 109.29
Product Code Wavelength Range 1200 - 8000 nm (Uncoated) Coating Uncoated Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 3 mm Parallelism < 2' Clear Aperture > 11.43 mm Substrate Silicon Shape Round Surface Quality 40-20 scratch-dig Thickness Tolerance ±0.1 mm Diameter Tolerance +0/-0.2 mm Surface Irregularity λ/2 (Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
Wedged Window	700 - 1100 nm (Coating Range)	> 22.86 mm	N-BK7	In stock	$ 146.12
Product Code Wavelength Range 700 - 1100 nm (Coating Range) Coating BBAR (700 - 1100 nm) Reflectance < 0.5% (700 - 1100 nm, per Surface, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 5 mm Clear Aperture > 22.86 mm Substrate N-BK7 Shape Round Surface Quality 10-5 scratch-dig Thickness Tolerance ±0.4 mm Diameter Tolerance +0/-0.2 mm Coating Features Broadband Wedge 30' Wedge Tolerance ±10' Supplier Location New Jersey, USA See product details More from Thorlabs
Wedged Window	1200 - 1600 nm	> Ø 22.86 mm	UV Fused Silica	In stock	$ 115.23
Product Code Wavelength Range 1200 - 1600 nm Coating BBAR (1200 - 1600 nm) Reflectance < 1% (1200 - 1600 nm, 45°, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 5 mm Clear Aperture > Ø 22.86 mm Substrate UV Fused Silica Shape Round Surface Quality 20-10 scratch-dig Thickness Tolerance ±0.1 mm Diameter Tolerance +0/-0.2 mm Coating Features Broadband Surface Irregularity < λ/10 (Flatness) Wedge 30' Wedge Tolerance ±10' Supplier Location New Jersey, USA See product details More from Thorlabs
Vacuum Viewport	1050 - 1700 nm (Coating Range)	> Ø 45.72 mm	UV Fused Silica	In stock	$ 199.16
Product Code Wavelength Range 1050 - 1700 nm (Coating Range) Coating BBAR (1050 - 1700 nm) Reflectance < 0.5% (1050 - 1700 nm, Average) Diameter 50.8 mm (2") Dimensions Ø 50.8 mm (2") Thickness 12 mm Clear Aperture > Ø 45.72 mm Substrate UV Fused Silica Shape Round Surface Quality 20-10 scratch-dig Thickness Tolerance ±0.1 mm Diameter Tolerance +0/-0.2 mm Coating Features Broadband Damage Threshold Pulsed 7.5 J/cm² (0.189 mm, 10 ns, 10 Hz, 1542 nm) Wedge 30' Wedge Tolerance ±10' Supplier Location New Jersey, USA See product details More from Thorlabs
Flat Window	400 - 1100 nm	> Ø 21.59 mm	UV Fused Silica	In stock	$ 320.23
Product Code Wavelength Range 400 - 1100 nm Coating BBAR (400 - 1100 nm) Reflectance < 0.25% Transmittance > 98% (Absolute) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 5 mm Parallelism < 3' Clear Aperture > Ø 21.59 mm Substrate UV Fused Silica Shape Round Surface Quality 10-5 scratch-dig Thickness Tolerance ±0.3 mm Diameter Tolerance +0/-0.2 mm Coating Features Broadband Damage Threshold Pulsed > 30 J/cm² (0.4 mm, 10 ns, 10 Hz, 532 nm) Transmitted Wavefront Error < λ/10 (633 nm) Mount Unmounted Supplier Location New Jersey, USA See product details More from Thorlabs
Wedged Window	185 - 2100 nm (Uncoated)	> Ø 11.43 mm	UV Fused Silica	2 weeks	$ 103.05
Product Code Wavelength Range 185 - 2100 nm (Uncoated) Coating Uncoated Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 3 mm Clear Aperture > Ø 11.43 mm Substrate UV Fused Silica Shape Round Surface Quality 10-5 scratch-dig Thickness Tolerance ±0.4 mm Diameter Tolerance +0/-0.2 mm Wedge 30' Wedge Tolerance ±10' Supplier Location New Jersey, USA See product details More from Thorlabs
Vacuum Viewport	650 - 1050 nm	-	UV Fused Silica	In stock	$ 173.44
Product Code Wavelength Range 650 - 1050 nm Coating BBAR (650 - 1050 nm) Diameter 38.1 mm (1.5") Dimensions Ø 38.1 mm (1.5") Substrate UV Fused Silica Shape Round Coating Features Broadband Applications High-Vacuum Supplier Location New Jersey, USA See product details More from Thorlabs
Wedged Window	185 - 2100 nm (Uncoated)	> Ø 8 mm	UV Fused Silica	In stock	$ 122.40
Product Code Wavelength Range 185 - 2100 nm (Uncoated) Coating Uncoated Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 3 mm Clear Aperture > Ø 8 mm Substrate UV Fused Silica Shape Round Surface Quality 10-5 scratch-dig Thickness Tolerance ±0.4 mm Diameter Tolerance +0/-0.2 mm Wedge 30' Wedge Tolerance ±10' Supplier Location New Jersey, USA See product details More from Thorlabs
Flat Window	1000 - 1700 nm	> Ø 8 mm	Fused Silica Infrasil	In stock	$ 407.00
Product Code Wavelength Range 1000 - 1700 nm Reflectance < 0.25% (Average) Transmittance > 98% (Absolute) Diameter 12.7 mm (0.5") 6.4 mm (0.25", Outer, Fill Tube) Dimensions Ø 12.7 x 18 mm Clear Aperture > Ø 8 mm Substrate Fused Silica Infrasil Shape Cylindrical Angle Tolerance ±1° Angle 0° Length Tolerance ±3 mm Length 18 mm (Path) 20 mm (Cell) Window Material Infrasil302 Supplier Location New Jersey, USA See product details More from Thorlabs
Flat Window	600 - 16000 nm (Uncoated)	> Ø 22.9 mm	Zinc Selenide	In stock	$ 194.83
Product Code Wavelength Range 600 - 16000 nm (Uncoated) Coating Uncoated Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 5 mm Parallelism < 1' Clear Aperture > Ø 22.9 mm Substrate Zinc Selenide Shape Round Surface Quality 40-20 scratch-dig Thickness Tolerance ±0.3 mm Diameter Tolerance +0/-0.2 mm Surface Irregularity λ (Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
Flat Window	150 - 4500 nm (Uncoated)	> Ø 22.86 mm	Sapphire	In stock	$ 90.87
Product Code Wavelength Range 150 - 4500 nm (Uncoated) Coating Uncoated Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 5 mm Parallelism < 3' Clear Aperture > Ø 22.86 mm Substrate Sapphire Shape Round Surface Quality 60-40 scratch-dig Thickness Tolerance ±0.3 mm Diameter Tolerance +0/-0.2 mm Surface Irregularity λ (Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
Flat Window	1000 - 1700 nm	> Ø 20 mm	Fused Silica Infrasil	In stock	$ 516.00
Product Code Wavelength Range 1000 - 1700 nm Reflectance < 0.25% (Average) Transmittance > 98% (Absolute) Diameter 25.4 mm (1") 6.4 mm (0.25", Outer, Fill Tube) Dimensions Ø 25.4 x 48 mm Clear Aperture > Ø 20 mm Substrate Fused Silica Infrasil Shape Cylindrical Angle Tolerance ±1° Angle 0° Length Tolerance ±3 mm Length 48 mm (Path) 50 mm (Cell) Window Material Infrasil302 Supplier Location New Jersey, USA See product details More from Thorlabs
Wedged Window	1200 - 8000 nm (Uncoated)	> Ø 22.86 mm	Silicon	In stock	$ 152.05
Product Code Wavelength Range 1200 - 8000 nm (Uncoated) Coating Uncoated Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 5 mm Clear Aperture > Ø 22.86 mm Substrate Silicon Shape Round Surface Quality 40-20 scratch-dig Thickness Tolerance ±0.1 mm Diameter Tolerance +0/-0.2 mm Wedge 30' Wedge Tolerance ±10' Supplier Location New Jersey, USA See product details More from Thorlabs
Flat Window	1000 - 1700 nm	-	Infrasil	In stock	$ 340.23
Product Code Wavelength Range 1000 - 1700 nm Coating BBAR (1000 - 1700 nm) Reflectance < 0.25% (Average) Transmittance > 98% (Absolute) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Substrate Infrasil Shape Round Coating Features Broadband Damage Threshold Pulsed > 30 J/cm² (0.23 mm, 10 ns, 10 Hz, 1064 nm) Mount Threaded Mount, SM, SM1 Supplier Location New Jersey, USA See product details More from Thorlabs
Flat Window	2000 - 5000 nm (Coating Range)	> Ø 22.86 mm	Sapphire	In stock	$ 146.12
Product Code Wavelength Range 2000 - 5000 nm (Coating Range) Reflectance < 1.5% (Average) < 1.75% (2000 - 4000 nm, per Surface, Both Sides, Average) < 3% (2000 - 5000 nm, per Surface, Absolute) Transmittance > 92% (2000 - 5000 nm, Average) > 94% (Average) > 92% (2000 - 4000 nm, Absolute) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 5 mm Parallelism < 3' Clear Aperture > Ø 22.86 mm Substrate Sapphire Shape Round Surface Quality 60-40 scratch-dig Thickness Tolerance ±0.3 mm Diameter Tolerance +0/-0.2 mm Damage Threshold Pulsed 200 J/cm² (0.102 mm, 200 μs, 2 Hz, 2940 nm) Supplier Location New Jersey, USA See product details More from Thorlabs
Vacuum Viewport	1050 - 1700 nm	> Ø 28.7 mm (1.13")	UV Fused Silica	In stock	$ 305.29
Product Code Wavelength Range 1050 - 1700 nm Coating BBAR (1050 - 1700 nm) Reflectance < 0.5% (1050 - 1700 nm, Average) Diameter 38.1 mm (1.5") 69.85 mm (2.75", Flange) 38.1 mm (1.5", Unmounted, Window) Dimensions Ø 38.1 mm (1.5") Thickness 4.04 mm (Mount, Window) Parallelism < 5'' Clear Aperture > Ø 28.7 mm (1.13") Substrate UV Fused Silica Shape Round Surface Quality 20-10 scratch-dig Thickness Tolerance ±0.2 mm Diameter Tolerance +0/-0.1 mm Coating Features Broadband Damage Threshold Pulsed 7.5 J/cm² (0.189 mm, 10 ns, 10 Hz, 1542 nm) Transmitted Wavefront Error λ/8 (633 nm) Applications High-Vacuum Window Material UV Fused Silica Supplier Location New Jersey, USA See product details More from Thorlabs
Wedged Window	350 - 700 nm (Coating Range)	> Ø 34.29 mm	N-BK7	In stock	$ 144.33
Product Code Wavelength Range 350 - 700 nm (Coating Range) Coating BBAR (350 - 700 nm) Reflectance < 0.5% (350 - 700 nm, Average, 0°) Diameter 38.1 mm (1.5") Dimensions Ø 38.1 mm (1.5") Thickness 8 mm Clear Aperture > Ø 34.29 mm Substrate N-BK7 Shape Round Surface Quality 20-10 scratch-dig Thickness Tolerance ±0.1 mm Diameter Tolerance +0/-0.2 mm Coating Features Broadband Damage Threshold Pulsed 7.5 J/cm² (0.504 mm, 10 ns, 10 Hz, 532 nm) Wedge 30' Wedge Tolerance ±10' Supplier Location New Jersey, USA See product details More from Thorlabs
Vacuum Viewport	1050 - 1700 nm	-	UV Fused Silica	In stock	$ 173.44
Product Code Wavelength Range 1050 - 1700 nm Coating BBAR (1050 - 1700 nm) Diameter 38.1 mm (1.5") Dimensions Ø 38.1 mm (1.5") Substrate UV Fused Silica Shape Round Coating Features Broadband Applications High-Vacuum Supplier Location New Jersey, USA See product details More from Thorlabs
Wedged Window	350 - 700 nm (Coating Range)	> Ø 22.86 mm	UV Fused Silica	In stock	$ 128.29
Product Code Wavelength Range 350 - 700 nm (Coating Range) Coating BBAR (350 - 700 nm) Reflectance < 0.5% (350 - 700 nm, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 5 mm Clear Aperture > Ø 22.86 mm Substrate UV Fused Silica Shape Round Surface Quality 20-10 scratch-dig Thickness Tolerance ±0.1 mm Diameter Tolerance +0/-0.2 mm Coating Features Broadband Damage Threshold Pulsed 7.5 J/cm² (0.491 mm, 10 ns, 10 Hz, 532 nm) Wedge 30' Wedge Tolerance ±10' Supplier Location New Jersey, USA See product details More from Thorlabs
Flat Window	< 400 - 1100 nm (0.25%)	> Ø 21.59 mm	UV Fused Silica	In stock	$ 320.23
Product Code Wavelength Range < 400 - 1100 nm (0.25%) Coating BBAR (400 - 1100 nm) Reflectance < 0.25% Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 5 mm Parallelism < 3' Clear Aperture > Ø 21.59 mm Substrate UV Fused Silica Shape Round Surface Quality 10-5 scratch-dig Thickness Tolerance ±0.3 mm Diameter Tolerance +0/-0.2 mm Coating Features Broadband Damage Threshold Pulsed > 30 J/cm² (0.4 mm, 10 ns, 10 Hz, 532 nm) Mount Unmounted Supplier Location New Jersey, USA See product details More from Thorlabs