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Beamsplitters

Beamsplitters are optical components that split an incident light beam into two or more beams with the same or different optical power, or into two beams with different polarizations.

Product	Wavelength Range	Dimensions	Reflectance	Availability	Price (USD)
Cube Beamsplitter	1100 - 1600 nm	25.4 mm (1")	< 0.5% (1100 - 1600 nm, 0°, Average)	Contact Supplier	$ 250.65
Product Code Wavelength Range 1100 - 1600 nm Reflectance < 0.5% (1100 - 1600 nm, 0°, Average) Dimensions 25.4 mm (1") Shape Cube Substrate N-BK7 Transmitted Wavefront Error < λ/4 (633 nm) Surface Quality 40-20 scratch-dig Clear Aperture > 20.3 x 20.3 mm Split Ratio (R:T) 10:90 Beam Deviation 0° (±5', Transmitted) Length 25.4 mm (1") Supplier Location New Jersey, USA See product details More from Thorlabs
Brewster Window	185 - 2100 nm (Uncoated)	Ø 6 mm	-	In stock	$ 73.65
Product Code Wavelength Range 185 - 2100 nm (Uncoated) Diameter 6 mm Dimensions Ø 6 mm Thickness 1 mm Parallelism < 5'' Shape Round Substrate UV Fused Silica Transmitted Wavefront Error < λ/10 Surface Quality 20-10 scratch-dig Clear Aperture > 5.4 mm Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.1 mm Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	900 - 1300 nm	10 x 10 x 10 mm	-	In stock	$ 222.14
Product Code Wavelength Range 900 - 1300 nm Dimensions 10 x 10 x 10 mm Shape Cube Substrate N-SF1 Surface Quality 40-20 scratch-dig Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Supplier Location New Jersey, USA See product details More from Thorlabs
Plate Beamsplitter	700 - 1100 nm	Ø 50.8 mm (2")	-	In stock	$ 197.20
Product Code Wavelength Range 700 - 1100 nm Diameter 50.8 mm (2") Dimensions Ø 50.8 mm (2") Thickness 8 mm Shape Round Substrate UV Fused Silica Split Ratio (R:T) 50:50 Wedge 30' Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	700 - 1300 nm	5 x 5 x 5 mm	> 95% (Average)	In stock	$ 207.90
Product Code Wavelength Range 700 - 1300 nm Reflectance > 95% (Average) Transmittance > 90% Dimensions 5 x 5 x 5 mm Shape Cube Substrate N-SF1 Surface Quality 40-20 scratch-dig Beam Deviation 0° (±5', Transmitted) 90° (±5', Reflected) Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	355 nm (Center Wavelength)	-	< 0.25% (355 nm, 0°)	In stock	$ 484.67
Product Code Wavelength Range 355 nm (Center Wavelength) Center Wavelength 355 nm Reflectance < 0.25% (355 nm, 0°) Shape Cube Substrate UV Fused Silica Transmitted Wavefront Error < λ/4 (633 nm) Surface Quality 20-10 scratch-dig Surface Irregularity < λ/10 (633 nm, Flatness) Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Damage Threshold Pulsed 3 J/cm² (0.299 mm, 10 ns, 10 Hz, 355 nm) Extinction Ratio > 2000:1 Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	532 nm (Center Wavelength)	12.7 x 12.7 x 12.7 mm	< 0.25% (532 nm, Absolute, 0°)	In stock	$ 245.74
Product Code Wavelength Range 532 nm (Center Wavelength) Center Wavelength 532 nm Reflectance < 0.25% (532 nm, Absolute, 0°) Dimensions 12.7 x 12.7 x 12.7 mm Shape Cube Substrate UV Fused Silica Transmitted Wavefront Error < λ/4 (10.2 mm, 633 nm) Surface Quality 40-20 scratch-dig Clear Aperture > 10.2 x 10.2 mm Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Extinction Ratio > 3000:1 Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Plate Beamsplitter	633 nm (Center Wavelength)	25 x 36 mm	-	In stock	$ 524.10
Product Code Wavelength Range 633 nm (Center Wavelength) Center Wavelength 633 nm Transmittance > 95% Dimensions 25 x 36 mm Shape Rectangular Substrate UV Fused Silica Transmitted Wavefront Error λ/4 (632.8 nm) Surface Quality 20-10 scratch-dig Angle of Incidence 45° Extinction Ratio > 10000:1 Supplier Location New Jersey, USA See product details More from Thorlabs
Cube Beamsplitter	1100 - 1600 nm	20 x 20 x 20 mm	< 0.5% (1100 - 1600 nm, 0°, Average)	In stock	$ 230.46
Product Code Wavelength Range 1100 - 1600 nm Reflectance < 0.5% (1100 - 1600 nm, 0°, Average) Dimensions 20 x 20 x 20 mm Shape Cube Substrate N-BK7 Transmitted Wavefront Error < λ/4 (633 nm) Surface Quality 40-20 scratch-dig Clear Aperture > 16 x 16 mm Split Ratio (R:T) 70:30 Surface Irregularity λ/10 (633 nm, Flatness) Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Length 20 mm Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	780 - 808 nm	-	< 0.25% (780 - 808 nm, 0°)	In stock	$ 484.67
Product Code Wavelength Range 780 - 808 nm Center Wavelength 780 - 808 nm Reflectance < 0.25% (780 - 808 nm, 0°) Shape Cube Substrate UV Fused Silica Transmitted Wavefront Error < λ/4 (633 nm) Surface Quality 20-10 scratch-dig Surface Irregularity < λ/10 (633 nm, Flatness) Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Damage Threshold Pulsed > 10 J/cm² (0.062 mm, 10 ns, 10 Hz, 810 nm) Extinction Ratio > 2000:1 Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	532 nm (Center Wavelength)	38.1 x 38.1 x 38.1 mm (1.5 x 1.5 x 1.5")	< 0.25% (Absolute, 0°)	In stock	$ 715.13
Product Code Wavelength Range 532 nm (Center Wavelength) Center Wavelength 532 nm Reflectance < 0.25% (Absolute, 0°) Dimensions 38.1 x 38.1 x 38.1 mm (1.5 x 1.5 x 1.5") Shape Cube Substrate Aluminum, UV Fused Silica Transmitted Wavefront Error < λ/4 (633 nm, RMS) Surface Quality 20-10 scratch-dig Clear Aperture > Ø 20.3 mm Surface Irregularity < λ/4 (633 nm, PV, Flatness) Beam Deviation ±5' (Transmitted) 90° (±20', Reflected) Damage Threshold Pulsed > 10 J/cm² (0.43 mm, 10 ns, 10 Hz, 532 nm) Extinction Ratio > 2000:1 Mount Cube, M4 Tap Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	1550 nm (Center Wavelength)	25.4 x 25.4 x 25.4 mm	< 0.25% (1550 nm, Absolute, 0°)	In stock	$ 281.53
Product Code Wavelength Range 1550 nm (Center Wavelength) Center Wavelength 1550 nm Reflectance < 0.25% (1550 nm, Absolute, 0°) Dimensions 25.4 x 25.4 x 25.4 mm Shape Cube Substrate UV Fused Silica Transmitted Wavefront Error < λ/4 (20 mm, 633 nm) Surface Quality 20-10 scratch-dig Clear Aperture > 20 x 20 mm Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Extinction Ratio < 1000:1 Supplier Location New Jersey, USA See product details More from Thorlabs
Plate Beamsplitter	250 - 450 nm	36 x 25 mm	< 1% (250 - 450 nm, Average, Front)	In stock	$ 137.80
Product Code Wavelength Range 250 - 450 nm Coating Dielectric Reflectance < 1% (250 - 450 nm, Average, Front) Dimensions 36 x 25 mm Thickness 1 mm Shape Rectangular Substrate UV Fused Silica Transmitted Wavefront Error λ/4 (633 nm) Surface Quality 40-20 scratch-dig Clear Aperture > 22.5 x 32.4 mm Split Ratio (R:T) 50:50 Applications Microscopy Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	1200 - 1600 nm	50.8 x 50.8 x 50.8 mm (2 x 2 x 2")	-	In stock	$ 921.84
Product Code Wavelength Range 1200 - 1600 nm Dimensions 50.8 x 50.8 x 50.8 mm (2 x 2 x 2") Shape Cube Substrate N-SF1 Surface Quality 40-20 scratch-dig Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Supplier Location New Jersey, USA See product details More from Thorlabs
Cube Beamsplitter	700 - 1100 nm	12.7 mm (0.5")	< 0.5% (700 - 1100 nm, 0°, Average)	In stock	$ 212.64
Product Code Wavelength Range 700 - 1100 nm Reflectance < 0.5% (700 - 1100 nm, 0°, Average) Dimensions 12.7 mm (0.5") Shape Cube Substrate N-BK7 Transmitted Wavefront Error < λ/4 (633 nm) Surface Quality 40-20 scratch-dig Clear Aperture > 10.16 x 10.16 mm Split Ratio (R:T) 30:70 Surface Irregularity λ/10 (633 nm, Flatness) Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Length 12.7 mm (0.5") Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	633 nm (Center Wavelength)	38.1 x 38.1 x 38.1 mm (1.5 x 1.5 x 1.5")	< 0.25% (Absolute, 0°)	In stock	$ 715.13
Product Code Wavelength Range 633 nm (Center Wavelength) Center Wavelength 633 nm Reflectance < 0.25% (Absolute, 0°) Dimensions 38.1 x 38.1 x 38.1 mm (1.5 x 1.5 x 1.5") Shape Cube Substrate Aluminum, UV Fused Silica Transmitted Wavefront Error < λ/4 (633 nm, RMS) Surface Quality 20-10 scratch-dig Clear Aperture > Ø 20.3 mm Surface Irregularity < λ/4 (633 nm, PV, Flatness) Beam Deviation ±5' (Transmitted) 90° (±20', Reflected) Extinction Ratio > 2000:1 Mount Cube, M4 Tap Supplier Location New Jersey, USA See product details More from Thorlabs
Beamsplitter Compensation Plate	350 - 1100 nm	25 x 36 mm	< 2% (350 - 1100 nm, 45°, Average)	In stock	$ 137.80
Product Code Wavelength Range 350 - 1100 nm Coating BBAR (350 - 1100 nm) Reflectance < 2% (350 - 1100 nm, 45°, Average) Dimensions 25 x 36 mm Parallelism < 3' Shape Rectangular Substrate UV Fused Silica Transmitted Wavefront Error < λ/4 (633 nm) Surface Quality 40-20 scratch-dig Clear Aperture > 22.5 x 32.4 mm Coating Features Broadband Supplier Location New Jersey, USA See product details More from Thorlabs
Cube Beamsplitter	400 - 700 nm (Coating Range)	-	< 0.5% (400 - 700 nm, Average, 0°)	In stock	$ 325.49
Product Code Wavelength Range 400 - 700 nm (Coating Range) Reflectance < 0.5% (400 - 700 nm, Average, 0°) Shape Cube Substrate N-BK7 Transmitted Wavefront Error λ/4 (633 nm, RMS) Surface Quality 40-20 scratch-dig Clear Aperture > Ø 20.3 mm Split Ratio (R:T) 50:50 Surface Irregularity λ/4 (633 nm, PV, Flatness) Beam Deviation 90° (±20', Reflected) Damage Threshold Pulsed 0.25 J/cm² (0.341 mm, 10 ns, 10 Hz, 532 nm) Mount Cube, 8-32 Tap Housing Material Engraved Black Anodized Aluminum Housing Supplier Location New Jersey, USA See product details More from Thorlabs
Plate Beamsplitter	195 - 2100 nm	25 x 36 mm	-	In stock	$ 134.24
Product Code Wavelength Range 195 - 2100 nm Dimensions 25 x 36 mm Thickness 1 mm Shape Rectangular Substrate UV Fused Silica Split Ratio (R:T) 30:70 Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	400 - 700 nm	-	-	In stock	$ 564.85
Product Code Wavelength Range 400 - 700 nm Shape Cube Extinction Ratio < 1000:1 (0 - 5°) < 100:1 (0 - 25°) Mount Cube, M4 Tap Supplier Location New Jersey, USA See product details More from Thorlabs