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	Reflectance	Availability	Price (USD)
Brewster Window	185 - 2100 nm (Uncoated)	> 18 mm	-	In stock	$ 149.98
Product Code Wavelength Range 185 - 2100 nm (Uncoated) Diameter 20 mm Dimensions Ø 20 mm Thickness 2 mm Parallelism < 5'' Clear Aperture > 18 mm Substrate UV Fused Silica Surface Quality 20-10 scratch-dig Thickness Tolerance ±0.1 mm Shape Round Diameter Tolerance +0/-0.1 mm Transmitted Wavefront Error < λ/10 Supplier Location New Jersey, USA See product details More from Thorlabs
Flat Window	350 - 700 nm (Coating Range)	> Ø 45.72 mm	< 0.5% (350 - 700 nm, Average)	In stock	$ 202.10
Product Code Wavelength Range 350 - 700 nm (Coating Range) Coating BBAR (350 - 700 nm) Reflectance < 0.5% (350 - 700 nm, Average) Diameter 50.8 mm (2") Dimensions Ø 50.8 mm (2") Thickness 12 mm Parallelism < 5'' Clear Aperture > Ø 45.72 mm Substrate UV Fused Silica Surface Quality 20-10 scratch-dig Damage Threshold Pulsed 7.5 J/cm² (0.491 mm, 10 ns, 10 Hz, 532 nm) Thickness Tolerance ±0.3 mm Shape Round Coating Features Broadband Surface Irregularity λ/10 (Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
Wedged Window	185 - 2100 nm (Uncoated)	> Ø 8 mm	-	In stock	$ 130.97
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 Surface Quality 10-5 scratch-dig Thickness Tolerance ±0.4 mm Shape Round Diameter Tolerance +0/-0.2 mm Wedge 30' Wedge Tolerance ±10' Supplier Location New Jersey, USA See product details More from Thorlabs
Wedged Window	700 - 1100 nm (Coating Range)	> 22.86 mm	< 0.5% (700 - 1100 nm, per Surface, Average)	In stock	$ 156.35
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 Surface Quality 10-5 scratch-dig Thickness Tolerance ±0.4 mm Shape Round 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	1650 - 3000 nm (Coating Range)	> Ø 11.4 mm	< 1% (per Surface, Average) < 2% (per Surface, Both Sides, Absolute)	In stock	$ 205.62
Product Code Wavelength Range 1650 - 3000 nm (Coating Range) Coating BBAR (1650 - 3000 nm) Reflectance < 1% (per Surface, Average) < 2% (per Surface, Both Sides, Absolute) Transmittance > 90% (Absolute) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 3 mm Clear Aperture > Ø 11.4 mm Substrate Zinc Selenide Surface Quality 40-20 scratch-dig Damage Threshold Pulsed 200 J/cm² (0.099 mm, 250 μs, 2 Hz, 2940 nm) Thickness Tolerance ±0.1 mm Shape Round 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
Flat Window	400 - 1100 nm	> Ø 21.59 mm	< 0.25%	In stock	$ 342.65
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 1 mm Parallelism < 3' Clear Aperture > Ø 21.59 mm Substrate UV Fused Silica Surface Quality 10-5 scratch-dig Damage Threshold Pulsed > 30 J/cm² (0.4 mm, 10 ns, 10 Hz, 532 nm) Thickness Tolerance ±0.1 mm Shape Round Diameter Tolerance +0/-0.2 mm Coating Features Broadband Transmitted Wavefront Error < λ/10 (633 nm) Mount Unmounted Supplier Location New Jersey, USA See product details More from Thorlabs
Flat Window	2000 - 5000 nm (Coating Range)	> Ø 11.43 mm	< 1.5% (Average) < 1.75% (2000 - 4000 nm, per Surface, Both Sides, Average) < 3% (2000 - 5000 nm, per Surface, Absolute)	In stock	$ 103.91
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 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 3 mm Parallelism < 3' Clear Aperture > Ø 11.43 mm Substrate Sapphire Surface Quality 60-40 scratch-dig Damage Threshold Pulsed 200 J/cm² (0.102 mm, 200 μs, 2 Hz, 2940 nm) Thickness Tolerance ±0.3 mm Shape Round Diameter Tolerance +0/-0.2 mm Supplier Location New Jersey, USA See product details More from Thorlabs
Wedged Window	400 - 700 nm	> Ø 22.86 mm	< 1% (400 - 700 nm, 45°, Average)	In stock	$ 123.30
Product Code Wavelength Range 400 - 700 nm Coating BBAR (400 - 700 nm) Reflectance < 1% (400 - 700 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 Surface Quality 20-10 scratch-dig Thickness Tolerance ±0.1 mm Shape Round 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
Wedged Window	7000 - 12000 nm (Coating Range)	> Ø 11.4 mm	< 1% (per Surface, Average) < 2% (per Surface, Both Sides, Absolute)	In stock	$ 174.46
Product Code Wavelength Range 7000 - 12000 nm (Coating Range) Coating BBAR (7000 - 12000 nm) Reflectance < 1% (per Surface, Average) < 2% (per Surface, Both Sides, Absolute) Transmittance > 90% (Absolute) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 3 mm Clear Aperture > Ø 11.4 mm Substrate Germanium Surface Quality 40-20 scratch-dig Thickness Tolerance ±0.1 mm Shape Round 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	2000 - 5000 nm (Coating Range)	> Ø 22.86 mm	< 1.5% (Average) < 1.75% (2000 - 4000 nm, per Surface, Both Sides, Average) < 3% (2000 - 5000 nm, per Surface, Absolute)	In stock	$ 169.06
Product Code Wavelength Range 2000 - 5000 nm (Coating Range) Coating BBAR (2000 - 5000 nm) 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 Clear Aperture > Ø 22.86 mm Substrate Sapphire Surface Quality 60-40 scratch-dig Damage Threshold Pulsed 200 J/cm² (0.102 mm, 200 μs, 2 Hz, 2940 nm) Thickness Tolerance ±0.3 mm Shape Round 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
Flat Window	400 - 1100 nm (Coating Range)	> Ø 45.72 mm	< 1% (400 - 1100 nm, Average)	In stock	$ 210.43
Product Code Wavelength Range 400 - 1100 nm (Coating Range) Coating BBAR (400 - 1100 nm) Reflectance < 1% (400 - 1100 nm, Average) Diameter 50.8 mm (2") Dimensions Ø 50.8 mm (2") Thickness 12 mm Parallelism < 5'' Clear Aperture > Ø 45.72 mm Substrate N-BK7 Surface Quality 20-10 scratch-dig Damage Threshold Pulsed 7.5 J/cm² (0.456 mm, 10 ns, 10 Hz, 532 nm) 7.5 J/cm² (0.407 mm, 10 ns, 10 Hz, 1064 nm) Thickness Tolerance ±0.3 mm Shape Round Coating Features Broadband Surface Irregularity < λ/10 (Flatness) Angle of Incidence 0° Supplier Location New Jersey, USA See product details More from Thorlabs
Wedged Window	1650 - 3000 nm (Coating Range)	> Ø 22.9 mm	< 1% (per Surface, Average) < 2% (per Surface, Both Sides, Absolute)	Contact Supplier	$ 186.94
Product Code Wavelength Range 1650 - 3000 nm (Coating Range) Coating BBAR (1650 - 3000 nm) Reflectance < 1% (per Surface, Average) < 2% (per Surface, Both Sides, Absolute) Transmittance > 92% (Absolute) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 5 mm Clear Aperture > Ø 22.9 mm Substrate Calcium Fluoride Surface Quality 40-20 scratch-dig Damage Threshold Pulsed 2 J/cm² (0.35 mm, 62.5 Hz, 10 ns, 2050 nm) Thickness Tolerance ±0.1 mm Shape Round 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
Flat Window	350 - 2000 nm (Uncoated)	> Ø 11.43 mm	-	In stock	$ 64.83
Product Code Wavelength Range 350 - 2000 nm (Uncoated) Coating Uncoated Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 3 mm Parallelism < 5'' Clear Aperture > Ø 11.43 mm Substrate N-BK7 Surface Quality 20-10 scratch-dig Thickness Tolerance ±0.3 mm Shape Round Surface Irregularity < λ/10 (Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
Wedged Window	1650 - 3000 nm (Coating Range)	> Ø 22.9 mm	< 1% (Average, per Surface, Both Sides)	In stock	$ 137.08
Product Code Wavelength Range 1650 - 3000 nm (Coating Range) Coating BBAR (1650 - 3000 nm) Reflectance < 1% (Average, per Surface, Both Sides) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 5 mm Clear Aperture > Ø 22.9 mm Substrate Sapphire Surface Quality 60-40 scratch-dig Damage Threshold Pulsed 2 J/cm² (0.339 mm, 62.5 Hz, 10 ns, 2050 nm) Thickness Tolerance ±0.1 mm Shape Round 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
Flat Window	2000 - 5000 nm (Coating Range)	> 11.43 mm	< 1.25% (Average) < 2.5% (0°, Absolute)	In stock	$ 169.06
Product Code Wavelength Range 2000 - 5000 nm (Coating Range) Coating BBAR (2000 - 5000 nm) Reflectance < 1.25% (Average) < 2.5% (0°, Absolute) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 3 mm Parallelism < 3' Clear Aperture > 11.43 mm Substrate Silicon Surface Quality 40-20 scratch-dig Thickness Tolerance ±0.3 mm Shape Round Diameter Tolerance +0/-0.2 mm Coating Features Broadband Surface Irregularity < λ/2 (Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
Wedged Window	1050 - 1700 nm (Coating Range)	> Ø 45.72 mm	< 0.5% (1050 - 1700 nm, Average, 0°)	In stock	$ 194.40
Product Code Wavelength Range 1050 - 1700 nm (Coating Range) Coating BBAR (1050 - 1700 nm) Reflectance < 0.5% (1050 - 1700 nm, Average, 0°) Diameter 50.8 mm (2") Dimensions Ø 50.8 mm (2") Thickness 12 mm Clear Aperture > Ø 45.72 mm Substrate N-BK7 Surface Quality 20-10 scratch-dig Damage Threshold Pulsed 7.5 J/cm² (0.123 mm, 10 ns, 10 Hz, 1542 nm) Thickness Tolerance ±0.1 mm Shape Round 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
Flat Window	400 - 700 nm (Coating Range)	> 22.86 mm	< 0.5% (400 - 700 nm, Average)	In stock	$ 143.64
Product Code Wavelength Range 400 - 700 nm (Coating Range) Coating BBAR (400 - 700 nm) Reflectance < 0.5% (400 - 700 nm, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 5 mm Parallelism < 5'' Clear Aperture > 22.86 mm Substrate N-BK7 Surface Quality 10-5 scratch-dig Damage Threshold Pulsed 7.5 J/cm² (0.491 mm, 10 ns, 10 Hz, 532 nm) Thickness Tolerance ±0.3 mm Shape Round Diameter Tolerance +0/-0.2 mm Coating Features Broadband Surface Irregularity < λ/10 (Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
Flat Window	610 - 860 nm (Coating Range)	> 22.86 mm	< 0.5% (610 - 860 nm, Average)	In stock	$ 143.64
Product Code Wavelength Range 610 - 860 nm (Coating Range) Coating BBAR (610 - 860 nm) Reflectance < 0.5% (610 - 860 nm, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 5 mm Parallelism < 5'' Clear Aperture > 22.86 mm Substrate N-BK7 Surface Quality 10-5 scratch-dig Damage Threshold Pulsed 7.5 J/cm² (0.133 mm, 10 ns, 10 Hz, 810 nm) Thickness Tolerance ±0.3 mm Shape Round Diameter Tolerance +0/-0.2 mm Coating Features Broadband Surface Irregularity < λ/10 (Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
Flat Window	1000 - 1700 nm	> Ø 10.16 mm	< 0.25%	In stock	$ 239.02
Product Code Wavelength Range 1000 - 1700 nm Coating BBAR (1000 - 1700 nm) Reflectance < 0.25% Transmittance > 98% (Absolute) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 3 mm Parallelism < 3' Clear Aperture > Ø 10.16 mm Substrate Infrasil Surface Quality 10-5 scratch-dig Damage Threshold Pulsed > 30 J/cm² (0.23 mm, 10 ns, 10 Hz, 1064 nm) Thickness Tolerance ±0.3 mm Shape Round Diameter Tolerance +0/-0.2 mm Coating Features Broadband Mount Unmounted Supplier Location New Jersey, USA See product details More from Thorlabs
Flat Window	350 - 700 nm (Coating Range)	> Ø 22.86 mm	< 0.5% (Average)	In stock	$ 110.26
Product Code Wavelength Range 350 - 700 nm (Coating Range) Coating BBAR (350 - 700 nm) Reflectance < 0.5% (Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 5 mm Parallelism < 5'' Clear Aperture > Ø 22.86 mm Substrate N-BK7 Surface Quality 20-10 scratch-dig Damage Threshold Pulsed 7.5 J/cm² (0.504 mm, 10 ns, 10 Hz, 532 nm) Thickness Tolerance ±0.3 mm Shape Round Coating Features Broadband Surface Irregularity < λ/10 (Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs