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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)
Pellicle Beamsplitter	-	-	-	In stock	$ 201.95
Product Code Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Shape Round Split Ratio (R:T) 33:67 Supplier Location New Jersey, USA See product details More from Thorlabs
Cube Beamsplitter	700 - 1100 nm	< 0.5% (700 - 1100 nm, 0°, Average)	N-BK7	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") Substrate N-BK7 Shape Cube Clear Aperture > 10.16 x 10.16 mm Transmitted Wavefront Error < λ/4 (633 nm) Surface Quality 40-20 scratch-dig Split Ratio (R:T) 70:30 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
Longpass Dichroic Beamsplitter	1020 - 1550 nm (Coating Range)	> 90% (1020 - 1550 nm, Absolute) > 95% (1020 - 1550 nm, Average)	UV Fused Silica	In stock	$ 206.69
Product Code Wavelength Range 1020 - 1550 nm (Coating Range) Cut-On Wavelength 1000 nm Reflectance > 90% (1020 - 1550 nm, Absolute) > 95% (1020 - 1550 nm, Average) Transmittance > 90% (1020 - 1550 nm, Average) > 85% (1020 - 1550 nm, Absolute) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 3 mm Parallelism < 3' Substrate UV Fused Silica Shape Round Transmitted Wavefront Error < λ/4 (633 nm) Surface Quality 40-20 scratch-dig Angle of Incidence 45° Damage Threshold Pulsed 0.25 J/cm² (0.459 mm, 10 Hz, 10 ns, 1064 nm) Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	700 - 1300 nm	> 95% (Average)	N-SF1	In stock	$ 222.14
Product Code Wavelength Range 700 - 1300 nm Reflectance > 95% (Average) Transmittance > 90% Dimensions 10 x 10 x 10 mm Substrate N-SF1 Shape Cube 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	532 nm (Center Wavelength)	< 0.25% (532 nm, 0°)	UV Fused Silica	In stock	$ 484.67
Product Code Wavelength Range 532 nm (Center Wavelength) Center Wavelength 532 nm Reflectance < 0.25% (532 nm, 0°) Substrate UV Fused Silica Shape Cube 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) Extinction Ratio > 2000:1 Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	900 - 1300 nm (Coating Range)	< 0.5% (900 - 1300 nm, 0°, Average)	N-SF1	In stock	$ 310.06
Product Code Wavelength Range 900 - 1300 nm (Coating Range) Reflectance < 0.5% (900 - 1300 nm, 0°, Average) Substrate N-SF1 Shape Cube Clear Aperture Ø 12.5 mm Transmitted Wavefront Error < λ/4 (633 nm) Surface Quality 40-20 scratch-dig Surface Irregularity < λ/4 (633 nm, Flatness) Beam Deviation < 5' (Transmitted) 90° (±20', Reflected) Extinction Ratio > 1000:1 Mount Cube, M4 Tap Supplier Location New Jersey, USA See product details More from Thorlabs
Plate Beamsplitter	700 - 1100 nm	-	UV Fused Silica	In stock	$ 147.30
Product Code Wavelength Range 700 - 1100 nm Dimensions 25 x 36 mm Thickness 1 mm Substrate UV Fused Silica Shape Rectangular Split Ratio (R:T) 90:10 Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	1064 nm (Center Wavelength)	< 0.25% (1064 nm, Absolute, 0°)	UV Fused Silica	In stock	$ 281.53
Product Code Wavelength Range 1064 nm (Center Wavelength) Center Wavelength 1064 nm Reflectance < 0.25% (1064 nm, Absolute, 0°) Dimensions 25.4 x 25.4 x 25.4 mm Substrate UV Fused Silica Shape Cube Clear Aperture > 20 x 20 mm Transmitted Wavefront Error < λ/4 (20 mm, 633 nm) 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
Plate Beamsplitter	400 - 700 nm	-	UV Fused Silica	In stock	$ 106.91
Product Code Wavelength Range 400 - 700 nm Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 3 mm Substrate UV Fused Silica Shape Round Split Ratio (R:T) 10:90 Wedge 30' Supplier Location New Jersey, USA See product details More from Thorlabs
Cube Beamsplitter	1100 - 1600 nm (Coating Range)	< 0.5% (1100 - 1600 nm, 0°, Average)	N-BK7	In stock	$ 239.96
Product Code Wavelength Range 1100 - 1600 nm (Coating Range) Reflectance < 0.5% (1100 - 1600 nm, 0°, Average) Substrate N-BK7 Shape Cube Clear Aperture Ø 12.5 mm Transmitted Wavefront Error < λ/4 Surface Quality 40-20 scratch-dig Split Ratio (R:T) 50:50 Surface Irregularity λ/10 (Flatness) Beam Deviation 90° (±20', Reflected) Mount Cube, M4 Tap Supplier Location New Jersey, USA See product details More from Thorlabs
Cube Beamsplitter	1100 - 1600 nm	< 0.5% (1100 - 1600 nm, 0°, Average)	N-BK7	2 weeks	$ 178.19
Product Code Wavelength Range 1100 - 1600 nm Reflectance < 0.5% (1100 - 1600 nm, 0°, Average) Dimensions 5 x 5 x 5 mm Substrate N-BK7 Shape Cube Clear Aperture > 3.5 x 3.5 mm Transmitted Wavefront Error < λ/4 (633 nm) Surface Quality 40-20 scratch-dig Split Ratio (R:T) 10:90 Surface Irregularity λ/10 (633 nm, Flatness) Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Length 5 mm Supplier Location New Jersey, USA See product details More from Thorlabs
Plate Beamsplitter	1000 - 6000 nm	-	Calcium Fluoride	2 weeks	$ 356.39
Product Code Wavelength Range 1000 - 6000 nm Coating Uncoated Dimensions 25 x 36 mm Thickness 1 mm Substrate Calcium Fluoride Shape Rectangular Clear Aperture > 22.5 x 32.4 mm Transmitted Wavefront Error < λ/4 (633 nm) Surface Quality 60-40 scratch-dig Split Ratio (R:T) 50:50 Damage Threshold Pulsed 0.5 J/cm² (0.027 mm, 30 ns, 167 Hz, 2100 nm) 10 J/cm² (0.485 mm, 200 μs, 2 Hz, 2940 nm) Center Thickness Tolerance ±0.1 mm Center Thickness 1 mm Supplier Location New Jersey, USA See product details More from Thorlabs
Cube Beamsplitter	1100 - 1600 nm	< 0.5% (1100 - 1600 nm, 0°, Average)	N-BK7	In stock	$ 250.65
Product Code Wavelength Range 1100 - 1600 nm Reflectance < 0.5% (1100 - 1600 nm, 0°, Average) Dimensions 25.4 mm (1") Substrate N-BK7 Shape Cube Clear Aperture > 20.3 x 20.3 mm Transmitted Wavefront Error < λ/4 (633 nm) Surface Quality 40-20 scratch-dig Split Ratio (R:T) 90:10 Surface Irregularity λ/10 (633 nm, Flatness) Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Length 25.4 mm (1") Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	633 nm (Center Wavelength)	< 0.25% (Absolute, 0°)	Aluminum, UV Fused Silica	In stock	$ 393.20
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") Substrate Aluminum, UV Fused Silica Shape Cube Clear Aperture > Ø 20.3 mm Transmitted Wavefront Error λ/4 (633 nm, RMS) Surface Quality 20-10 scratch-dig Surface Irregularity λ/4 (633 nm, PV, Flatness) Beam Deviation ±5' (Transmitted) 90° (±20', Reflected) Extinction Ratio > 3000:1 Mount Cube, M4 Tap Supplier Location New Jersey, USA See product details More from Thorlabs
Plate Beamsplitter	195 - 2100 nm	-	UV Fused Silica	In stock	$ 197.20
Product Code Wavelength Range 195 - 2100 nm Diameter 50.8 mm (2") Dimensions Ø 50.8 mm (2") Thickness 8 mm Substrate UV Fused Silica Shape Round Split Ratio (R:T) 70:30 Wedge 30' Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	420 - 680 nm (Coating Range)	< 0.5% (420 - 680 nm, Average)	N-SF1	In stock	$ 362.30
Product Code Wavelength Range 420 - 680 nm (Coating Range) Reflectance < 0.5% (420 - 680 nm, Average) Substrate N-SF1 Shape Cube Clear Aperture Ø 20.3 mm Transmitted Wavefront Error < λ/4 (633 nm, RMS) Surface Quality 40-20 scratch-dig Surface Irregularity < λ/4 (633 nm, PV, Flatness) Beam Deviation ±5' (Transmitted) 90° (±20', Reflected) Extinction Ratio > 1000:1 Mount Cube, 8-32 Tap Supplier Location New Jersey, USA See product details More from Thorlabs
Shortpass Dichroic Beamsplitter	932 - 1700 nm (Coating Range)	> 90% (932 - 1700 nm, Absolute) > 95% (932 - 1700 nm, Average)	UV Fused Silica	In stock	$ 206.69
Product Code Wavelength Range 932 - 1700 nm (Coating Range) Cut-Off Wavelength 1500 nm Reflectance > 90% (932 - 1700 nm, Absolute) > 95% (932 - 1700 nm, Average) Transmittance > 90% (1000 - 1450 nm, Average) > 85% (1000 - 1450 nm, Absolute) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 3.2 mm Substrate UV Fused Silica Shape Round Clear Aperture > Ø 11.43 mm Transmitted Wavefront Error λ/4 (633 nm) Surface Quality 40-20 scratch-dig Angle of Incidence 45° Damage Threshold Pulsed 7 J/cm² (0.25 mm, 10 Hz, 12 ns, 1064 nm) Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	420 - 680 nm (Coating Range)	< 0.5% (420 - 680 nm, Average)	N-SF1	In stock	$ 362.30
Product Code Wavelength Range 420 - 680 nm (Coating Range) Reflectance < 0.5% (420 - 680 nm, Average) Substrate N-SF1 Shape Cube Clear Aperture Ø 20.3 mm Transmitted Wavefront Error < λ/4 (633 nm, RMS) Surface Quality 40-20 scratch-dig Surface Irregularity < λ/4 (633 nm, PV, Flatness) Beam Deviation ±5' (Transmitted) 90° (±20', Reflected) Extinction Ratio > 1000:1 Mount Cube, M4 Tap Supplier Location New Jersey, USA See product details More from Thorlabs
Polarizing Cube Beamsplitter	620 - 1000 nm	-	N-SF1	In stock	$ 207.90
Product Code Wavelength Range 620 - 1000 nm Dimensions 5 x 5 x 5 mm 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
Cube Beamsplitter	1100 - 1600 nm	< 0.5% (1100 - 1600 nm, 0°, Average)	N-BK7	In stock	$ 250.65
Product Code Wavelength Range 1100 - 1600 nm Reflectance < 0.5% (1100 - 1600 nm, 0°, Average) Dimensions 25.4 mm (1") Substrate N-BK7 Shape Cube Clear Aperture > 20.3 x 20.3 mm Transmitted Wavefront Error < λ/4 (633 nm) Surface Quality 40-20 scratch-dig Split Ratio (R:T) 70:30 Surface Irregularity λ/10 (633 nm, Flatness) Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Length 25.4 mm (1") Supplier Location New Jersey, USA See product details More from Thorlabs