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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	Reflectance	Substrate	Availability	Price (USD)
Cube Beamsplitter	400 - 700 nm	< 0.5% (400 - 700 nm, 0°, Average)	N-BK7	In stock	$ 205.50
Product Code Wavelength Range 400 - 700 nm Reflectance < 0.5% (400 - 700 nm, 0°, Average) Dimensions 10 x 10 x 10 mm Substrate N-BK7 Clear Aperture > 8 x 8 mm Transmitted Wavefront Error < λ/4 (633 nm) Shape Cube Surface Quality 40-20 scratch-dig Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Split Ratio (R:T) 90:10 Surface Irregularity λ/10 (633 nm, Flatness) Length 10 mm Supplier Location New Jersey, USA See product details More from Thorlabs
Longpass Dichroic Beamsplitter	473 - 800 nm (Coating Range)	> 90% (473 - 800 nm, Absolute) > 95% (473 - 800 nm, Average)	UV Fused Silica	In stock	$ 484.67
Product Code Wavelength Range 473 - 800 nm (Coating Range) Cut-On Wavelength 463 nm Reflectance > 90% (473 - 800 nm, Absolute) > 95% (473 - 800 nm, Average) Transmittance > 90% (473 - 800 nm, Average) > 85% (473 - 800 nm, Absolute) Diameter 50.8 mm (2") Dimensions Ø 50.8 mm (2") Thickness 5 mm Parallelism < 3' Substrate UV Fused Silica Clear Aperture > Ø 45.7 mm Transmitted Wavefront Error < λ/4 (633 nm) Shape Round Surface Quality 40-20 scratch-dig Angle of Incidence 45° Supplier Location New Jersey, USA See product details More from Thorlabs
Cube Beamsplitter	400 - 700 nm	< 0.5% (400 - 700 nm, 0°, Average)	N-BK7	In stock	$ 212.64
Product Code Wavelength Range 400 - 700 nm Reflectance < 0.5% (400 - 700 nm, 0°, Average) Dimensions 12.7 mm (0.5") Substrate N-BK7 Clear Aperture > 10.16 x 10.16 mm Transmitted Wavefront Error < λ/4 (633 nm) Shape Cube Surface Quality 40-20 scratch-dig Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Split Ratio (R:T) 30:70 Surface Irregularity λ/10 (633 nm, Flatness) Length 12.7 mm (0.5") Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	405 nm (Center Wavelength)	< 0.25% (405 nm, 0°)	UV Fused Silica	In stock	$ 605.84
Product Code Wavelength Range 405 nm (Center Wavelength) Center Wavelength 405 nm Reflectance < 0.25% (405 nm, 0°) Substrate UV Fused Silica Transmitted Wavefront Error < λ/4 (633 nm) Shape Cube Surface Quality 20-10 scratch-dig Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Surface Irregularity < λ/10 (633 nm, Flatness) Extinction Ratio < 1000:1 Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	420 - 680 nm	-	N-SF1	In stock	$ 226.89
Product Code Wavelength Range 420 - 680 nm Dimensions 12.7 x 12.7 x 12.7 mm (0.5 x 0.5 x 0.5") Substrate N-SF1 Shape Cube Surface Quality 40-20 scratch-dig Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Supplier Location New Jersey, USA See product details More from Thorlabs
Shortpass Dichroic Beamsplitter	400 - 800 nm (Coating Range)	> 90% (400 - 800 nm, Absolute) > 95% (400 - 800 nm, Average)	UV Fused Silica	In stock	$ 206.69
Product Code Wavelength Range 400 - 800 nm (Coating Range) Cut-Off Wavelength 805 nm Reflectance > 90% (400 - 800 nm, Absolute) > 95% (400 - 800 nm, Average) Transmittance > 90% (400 - 788 nm, Average) > 85% (400 - 788 nm, Absolute) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 3.2 mm Substrate UV Fused Silica Clear Aperture > Ø 11.43 mm Transmitted Wavefront Error λ/4 (633 nm) Shape Round Surface Quality 40-20 scratch-dig Angle of Incidence 45° Damage Threshold Pulsed 1 J/cm² (0.25 mm, 10 Hz, 10 ns, 532 nm) 2 J/cm² (0.45 mm, 10 Hz, 10 ns, 1064 nm) Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	1550 nm (Center Wavelength)	< 0.25% (1550 nm, Absolute, 0°)	UV Fused Silica	In stock	$ 241.09
Product Code Wavelength Range 1550 nm (Center Wavelength) Center Wavelength 1550 nm Reflectance < 0.25% (1550 nm, Absolute, 0°) Dimensions 10 x 10 x 10 mm Substrate UV Fused Silica Clear Aperture > 8 x 8 mm Transmitted Wavefront Error < λ/4 (8 mm, 633 nm) Shape Cube Surface Quality 40-20 scratch-dig Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Extinction Ratio > 3000:1 Supplier Location New Jersey, USA See product details More from Thorlabs
Cube Beamsplitter	400 - 700 nm	< 0.5% (400 - 700 nm, 0°, Average)	N-BK7	In stock	$ 212.64
Product Code Wavelength Range 400 - 700 nm Reflectance < 0.5% (400 - 700 nm, 0°, Average) Dimensions 12.7 mm (0.5") Substrate N-BK7 Clear Aperture > 10.16 x 10.16 mm Transmitted Wavefront Error < λ/4 (633 nm) Shape Cube Surface Quality 40-20 scratch-dig Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Split Ratio (R:T) 70:30 Surface Irregularity λ/10 (633 nm, Flatness) Length 12.7 mm (0.5") Supplier Location New Jersey, USA See product details More from Thorlabs
Cube Beamsplitter	700 - 1100 nm (Coating Range)	< 0.5% (700 - 1100 nm, 0°, Average)	N-BK7	In stock	$ 222.14
Product Code Wavelength Range 700 - 1100 nm (Coating Range) Reflectance < 0.5% (700 - 1100 nm, 0°, Average) Substrate N-BK7 Clear Aperture Ø 12.5 mm Transmitted Wavefront Error < λ/4 Shape Cube Surface Quality 40-20 scratch-dig Beam Deviation 90° (±20', Reflected) Split Ratio (R:T) 50:50 Surface Irregularity λ/10 (Flatness) Mount Cube, 8-32 Tap Supplier Location New Jersey, USA See product details More from Thorlabs
Longpass Dichroic Beamsplitter	1550 - 2000 nm (Coating Range)	> 90% (1550 - 2000 nm, Absolute) > 95% (1550 - 2000 nm, Average)	UV Fused Silica	In stock	$ 593.97
Product Code Wavelength Range 1550 - 2000 nm (Coating Range) Cut-On Wavelength 1500 nm Reflectance > 90% (1550 - 2000 nm, Absolute) > 95% (1550 - 2000 nm, Average) Transmittance > 90% (1550 - 2000 nm, Average) > 85% (1550 - 2000 nm, Absolute) Dimensions 25 x 36 mm Thickness 1 mm Parallelism < 3' Substrate UV Fused Silica Clear Aperture > 22.5 x 32.4 mm Transmitted Wavefront Error < λ/4 (633 nm) Shape Rectangular Surface Quality 40-20 scratch-dig Angle of Incidence 45° Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	633 nm (Center Wavelength)	< 0.25% (633 nm, Absolute, 0°)	UV Fused Silica	In stock	$ 245.74
Product Code Wavelength Range 633 nm (Center Wavelength) Center Wavelength 633 nm Reflectance < 0.25% (633 nm, Absolute, 0°) Dimensions 12.7 x 12.7 x 12.7 mm Substrate UV Fused Silica Clear Aperture > 10.2 x 10.2 mm Transmitted Wavefront Error < λ/4 (10.2 mm, 633 nm) Shape Cube Surface Quality 40-20 scratch-dig Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Extinction Ratio > 3000:1 Supplier Location New Jersey, USA See product details More from Thorlabs
Polka-Dot Beamsplitter	350 - 2000 nm	-	B 270	In stock	$ 123.54
Product Code Wavelength Range 350 - 2000 nm Thickness 1.5 mm Substrate B 270 Angle of Incidence 0 - 45° Input Beam Diameter 2 mm (Minimum) Coating Pattern Square-Coated Apertures 0.0040" (100 μm) Sides 0.0022" (56 μm) Spacing Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	532 nm (Center Wavelength)	< 0.25% (Absolute, 0°)	Aluminum, UV Fused Silica	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") Substrate Aluminum, UV Fused Silica Clear Aperture > Ø 20.3 mm Transmitted Wavefront Error < λ/4 (633 nm, RMS) Shape Cube Surface Quality 20-10 scratch-dig Beam Deviation ±5' (Transmitted) 90° (±20', Reflected) Surface Irregularity < λ/4 (633 nm, PV, Flatness) Damage Threshold Pulsed > 10 J/cm² (0.43 mm, 10 ns, 10 Hz, 532 nm) Extinction Ratio > 2000:1 Mount Cube, 8-32 Tap Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	780 - 808 nm	< 0.25% (780 - 808 nm, 0°)	UV Fused Silica	In stock	$ 605.84
Product Code Wavelength Range 780 - 808 nm Center Wavelength 780 - 808 nm Reflectance < 0.25% (780 - 808 nm, 0°) Substrate UV Fused Silica Transmitted Wavefront Error < λ/4 (633 nm) Shape Cube Surface Quality 20-10 scratch-dig Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Surface Irregularity < λ/10 (633 nm, Flatness) Damage Threshold Pulsed > 10 J/cm² (0.062 mm, 10 ns, 10 Hz, 810 nm) Extinction Ratio < 1000:1 Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	1550 nm (Center Wavelength)	< 0.25% (1550 nm, Absolute, 0°)	UV Fused Silica	In stock	$ 245.74
Product Code Wavelength Range 1550 nm (Center Wavelength) Center Wavelength 1550 nm Reflectance < 0.25% (1550 nm, Absolute, 0°) Dimensions 12.7 x 12.7 x 12.7 mm Substrate UV Fused Silica Clear Aperture > 10.2 x 10.2 mm Transmitted Wavefront Error < λ/4 (10.2 mm, 633 nm) Shape Cube Surface Quality 40-20 scratch-dig Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Extinction Ratio > 3000:1 Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	700 - 1300 nm (Coating Range)	< 1% (700 - 1300 nm, Average)	N-SF1	In stock	$ 362.30
Product Code Wavelength Range 700 - 1300 nm (Coating Range) Reflectance < 1% (700 - 1300 nm, Average) Substrate N-SF1 Clear Aperture Ø 20.3 mm Transmitted Wavefront Error < λ/4 (633 nm, RMS) Shape Cube Surface Quality 40-20 scratch-dig Beam Deviation < 5' (Transmitted) 90° (±20', Reflected) Surface Irregularity < λ/4 (633 nm, PV, Flatness) Extinction Ratio > 1000:1 Mount Cube, 8-32 Tap Supplier Location New Jersey, USA See product details More from Thorlabs
Longpass Dichroic Beamsplitter	400 - 800 nm (Coating Range)	> 90% (400 - 800 nm, Absolute) > 95% (400 - 800 nm, Average)	UV Fused Silica	In stock	$ 200.76
Product Code Wavelength Range 400 - 800 nm (Coating Range) Cut-On Wavelength 567 nm Reflectance > 90% (400 - 800 nm, Absolute) > 95% (400 - 800 nm, Average) Transmittance > 90% (584 - 800 nm, Average) > 85% (584 - 800 nm, Absolute) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 3 mm Parallelism < 3' Substrate UV Fused Silica Clear Aperture > Ø 22.9 mm Transmitted Wavefront Error < λ/4 (633 nm) Shape Round Surface Quality 40-20 scratch-dig Angle of Incidence 45° Damage Threshold Pulsed 1.5 J/cm² (0.25 mm, 10 Hz, 10 ns, 532 nm) Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	980 nm (Center Wavelength)	< 0.25% (980 nm, Absolute, 0°)	UV Fused Silica	In stock	$ 281.53
Product Code Wavelength Range 980 nm (Center Wavelength) Center Wavelength 980 nm Reflectance < 0.25% (980 nm, Absolute, 0°) Dimensions 25.4 x 25.4 x 25.4 mm Substrate UV Fused Silica Clear Aperture > 20 x 20 mm Transmitted Wavefront Error < λ/4 (20 mm, 633 nm) Shape Cube Surface Quality 20-10 scratch-dig Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Extinction Ratio < 1000:1 Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	620 - 1000 nm (Coating Range)	< 0.5% (620 - 1000 nm, Average)	N-SF1	In stock	$ 362.30
Product Code Wavelength Range 620 - 1000 nm (Coating Range) Reflectance < 0.5% (620 - 1000 nm, Average) Substrate N-SF1 Clear Aperture Ø 20.3 mm Transmitted Wavefront Error < λ/4 (633 nm, RMS) Shape Cube Surface Quality 40-20 scratch-dig Beam Deviation ±5' (Transmitted) 90° (±20', Reflected) Surface Irregularity < λ/4 (633 nm, PV, Flatness) Extinction Ratio > 1000:1 Mount Cube, M4 Tap Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	420 - 680 nm	-	H-ZF3	In stock	$ 921.84
Product Code Wavelength Range 420 - 680 nm Dimensions 50.8 x 50.8 x 50.8 mm (2 x 2 x 2") Substrate H-ZF3 Shape Cube Surface Quality 40-20 scratch-dig Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Supplier Location New Jersey, USA See product details More from Thorlabs