Beamsplitter Cubes & Prisms

Optical components with the shape of cubes that split incident light into two beams while avoiding the shifts of beam position and phase typical of plate beamsplitters.

Product	Split Ratio (R:T)	Wavelength Range	Dimensions	Availability	Price (USD)
Cube Beamsplitter	0.5525:99.448	632 nm (Center Wavelength)	12.5 x 12.5 x 12.5 mm (±0.1 mm)	In stock	$ 263.00
Product Code Wavelength Range 632 nm (Center Wavelength) Center Wavelength 632 nm Reflectance < 0.25% Transmittance < 45% Dimensions 12.5 x 12.5 x 12.5 mm (±0.1 mm) Split Ratio (R:T) 0.5525:99.448 Clear Aperture 11.25 x 11.25 x 11.25 mm Surface Quality 40-20 scratch-dig Surface Irregularity λ/8 (Flatness) Substrate N-BK7 Shape Cube Beam Deviation ±2' Transmittance Tolerance ±5% Bevels Protective as needed Supplier Location New Jersey, USA See product details More from Edmund Optics
Cube Beamsplitter	50:50	750 - 850 nm	20 mm	In stock	$ 188.00
Product Code Wavelength Range 750 - 850 nm Center Wavelength 750 - 850 nm Coating Chromium, Dielectric Transmittance 28% (Average) Dimensions 20 mm Split Ratio (R:T) 50:50 Surface Quality 40-20 scratch-dig Surface Irregularity λ/4 (Flatness) Substrate BK7 Beam Deviation < 5' Length 20 mm Damage Threshold Pulsed 0.3 J/cm² (10 ns, 20 Hz) Weight 21 g Angle of Incidence 0° Transmittance Tolerance ±5% Supplier Location California, USA See product details More from OptoSigma
Cube Beamsplitter	30:70	1100 - 1600 nm	20 x 20 x 20 mm	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 Split Ratio (R:T) 30:70 Clear Aperture > 16 x 16 mm Surface Quality 40-20 scratch-dig Surface Irregularity λ/10 (633 nm, Flatness) Substrate N-BK7 Shape Cube Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Length 20 mm Transmitted Wavefront Error < λ/4 (633 nm) Supplier Location New Jersey, USA See product details More from Thorlabs
Cube Beamsplitter	50:50	310 - 2700 nm	15 x 15 x 15 mm	Contact Supplier	$ 152.90
Product Code Wavelength Range 310 - 2700 nm Cut-Off Wavelength 670 nm Cut-On Wavelength 430 nm Reflectance 50% Transmittance 50% Dimensions 15 x 15 x 15 mm Thickness 15 mm Split Ratio (R:T) 50:50 Surface Quality < 60-40 scratch-dig Substrate N-BK7 Shape Cube Length 15 mm Width 15 mm Supplier Location United Kingdom; Rhode Island, USA See product details More from Knight Optical
Cube Beamsplitter	30:70	350 - 2000 nm (Customizable)	25 x 25 x 25 mm	3 weeks	$ 190.00
Product Code Wavelength Range 350 - 2000 nm (Customizable) Dimensions 25 x 25 x 25 mm Thickness 25 mm Parallelism < 5' Split Ratio (R:T) 30:70 Clear Aperture > 22.5 x 22.5 x 22.5 mm Surface Quality 40-20 scratch-dig Surface Irregularity < λ/10 (Flatness) Substrate N-BK7 Shape Cube Angle < 5' Thickness Tolerance ±0.1 mm Chamfer < 0.25 mm (45°) Supplier Location China See product details More from Band-Optics
Cube Beamsplitter	50:50	430 - 670 nm	25 x 25 x 25 mm	In stock	$ 306.00
Product Code Wavelength Range 430 - 670 nm Reflectance < 0.5% (430 - 670 nm, Average) Transmittance 45% (Average) 45% (Absolute) Dimensions 25 x 25 x 25 mm Split Ratio (R:T) 50:50 Clear Aperture > 22.5 x 22.5 x 22.5 mm Surface Quality 40-20 scratch-dig Surface Irregularity λ/8 (PV, Flatness) Substrate N-BK7 Shape Cube Beam Deviation < 2' Transmittance Tolerance ±10% Bevels Protective bevel as needed Supplier Location New Jersey, USA See product details More from Edmund Optics
Cube Beamsplitter	30:70	350 - 2000 nm (Customizable)	10 x 10 x 10 mm	3 weeks	$ 150.00
Product Code Wavelength Range 350 - 2000 nm (Customizable) Dimensions 10 x 10 x 10 mm Thickness 10 mm Parallelism < 5' Split Ratio (R:T) 30:70 Clear Aperture > 9 x 9 x 9 mm Surface Quality 40-20 scratch-dig Surface Irregularity < λ/10 (Flatness) Substrate N-BK7 Shape Cube Angle < 5' Thickness Tolerance ±0.1 mm Chamfer < 0.25 mm (45°) Supplier Location China See product details More from Band-Optics
Cube Beamsplitter	30:70	350 - 2000 nm (Customizable)	20 x 20 x 20 mm	3 weeks	$ 180.00
Product Code Wavelength Range 350 - 2000 nm (Customizable) Dimensions 20 x 20 x 20 mm Thickness 20 mm Parallelism < 5' Split Ratio (R:T) 30:70 Clear Aperture > 18 x 18 x 18 mm Surface Quality 40-20 scratch-dig Surface Irregularity < λ/10 (Flatness) Substrate N-BK7 Shape Cube Angle < 5' Thickness Tolerance ±0.1 mm Chamfer < 0.25 mm (45°) Supplier Location China See product details More from Band-Optics
Cube Beamsplitter	50:50	720 - 1080 nm	5 x 5 x 5 mm (±0.1 mm)	In stock	$ 215.00
Product Code Wavelength Range 720 - 1080 nm Reflectance < 0.5% (720 - 1080 nm, Average) Transmittance 45% (Average) 45% (Absolute) Dimensions 5 x 5 x 5 mm (±0.1 mm) Split Ratio (R:T) 50:50 Clear Aperture > 4.5 x 4.5 x 4.5 mm Surface Quality 40-20 scratch-dig Surface Irregularity λ/8 (Flatness) Substrate N-BK7 Shape Cube Beam Deviation < 2' Transmittance Tolerance ±10% Bevels Protective bevel as needed Supplier Location New Jersey, USA See product details More from Edmund Optics
Cube Beamsplitter	50:50	400 - 700 nm	-	6 - 12 weeks	$ 583.00
Product Code Wavelength Range 400 - 700 nm Center Wavelength 550 nm Coating BBAR (400 - 700 nm) Transmittance 50% (Average) Split Ratio (R:T) 50:50 Surface Quality 20-10 scratch-dig Surface Irregularity λ/4 (Flatness) Substrate BK7 Beam Deviation < 5' Damage Threshold Pulsed 0.3 J/cm² (10 ns, 20 Hz) Weight 162 g Angle of Incidence 0° Coating Features Broadband Transmittance Tolerance ±5% Supplier Location California, USA See product details More from OptoSigma
Cube Beamsplitter	50:50	700 - 1100 nm	10 x 10 x 10 mm	In stock	$ 205.50
Product Code Wavelength Range 700 - 1100 nm Reflectance < 0.5% (700 - 1100 nm, 0°, Average) Dimensions 10 x 10 x 10 mm Split Ratio (R:T) 50:50 Clear Aperture > 8 x 8 x 8 mm Surface Quality 40-20 scratch-dig Surface Irregularity λ/10 (633 nm, Flatness) Substrate N-BK7 Shape Cube Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Length 10 mm Damage Threshold Pulsed 0.25 J/cm² (0.166 mm, 10 ns, 10 Hz, 810 nm) Transmitted Wavefront Error < λ/4 (633 nm) Supplier Location New Jersey, USA See product details More from Thorlabs
Cube Beamsplitter	50:50	632.8 nm	20 mm	6 - 12 weeks	$ 407.00
Product Code Wavelength Range 632.8 nm Center Wavelength 632.8 nm Coating Dielectric Transmittance 50% Dimensions 20 mm Split Ratio (R:T) 50:50 Surface Quality 20-10 scratch-dig Surface Irregularity λ/4 (Flatness) Substrate BK7 Beam Deviation < 5' Length 20 mm Damage Threshold Pulsed 0.3 J/cm² (10 ns, 20 Hz) Weight 21 g Angle of Incidence 0° Transmittance Tolerance ±5% Supplier Location California, USA See product details More from OptoSigma
Cube Beamsplitter	30:70	350 - 2000 nm (Customizable)	12.5 x 12.5 x 12.5 mm	3 weeks	$ 160.00
Product Code Wavelength Range 350 - 2000 nm (Customizable) Dimensions 12.5 x 12.5 x 12.5 mm Thickness 12.5 mm Parallelism < 5' Split Ratio (R:T) 30:70 Clear Aperture > 11.25 x 11.25 x 11.25 mm Surface Quality 40-20 scratch-dig Surface Irregularity < λ/10 (Flatness) Substrate N-BK7 Shape Cube Angle < 5' Thickness Tolerance ±0.1 mm Chamfer < 0.25 mm (45°) Supplier Location China See product details More from Band-Optics
Cube Beamsplitter	70:30	350 - 2000 nm (Customizable)	50 x 50 x 50 mm	3 weeks	$ 315.00
Product Code Wavelength Range 350 - 2000 nm (Customizable) Dimensions 50 x 50 x 50 mm Thickness 50 mm Parallelism < 5' Split Ratio (R:T) 70:30 Clear Aperture > 45 x 45 x 45 mm Surface Quality 40-20 scratch-dig Surface Irregularity < λ/10 (Flatness) Substrate N-BK7 Shape Cube Angle < 5' Thickness Tolerance ±0.1 mm Chamfer < 0.25 mm (45°) Supplier Location China See product details More from Band-Optics
Cube Beamsplitter	50:50 (±5%)	450 - 700 nm	10 x 10 mm	4 - 5 days	$ 149.00
Product Code Wavelength Range 450 - 700 nm Center Wavelength 450 - 700 nm Transmittance 45% Dimensions 10 x 10 mm Split Ratio (R:T) 50:50 (±5%) Clear Aperture 8 x 8 mm Surface Quality 40-20 scratch-dig Surface Irregularity λ/4 (633 nm, Flatness) Substrate BK7 Shape Prism Beam Deviation < 5' Transmittance Tolerance ±5% Supplier Location Lithuania See product details More from EKSMA Optics
Cube Beamsplitter	30:70	400 - 700 nm	15 x 15 x 15 mm (±0.1 mm)	In stock	$ 217.00
Product Code Wavelength Range 400 - 700 nm Coating Magnesium Fluoride Dimensions 15 x 15 x 15 mm (±0.1 mm) Split Ratio (R:T) 30:70 Surface Quality 60-40 scratch-dig Substrate N-BK7 Shape Cube Beam Deviation ±3' Bevels Protective bevel as needed Supplier Location New Jersey, USA See product details More from Edmund Optics
Cube Beamsplitter	50:50	400 - 700 nm	10 x 10 mm	In stock	$ 237.00
Product Code Wavelength Range 400 - 700 nm Center Wavelength 400 - 700 nm Transmission Wavelength 550 nm Coating Dielectric Transmittance 45% (550 nm) Dimensions 10 x 10 mm Split Ratio (R:T) 50:50 Surface Quality 40-20 scratch-dig Surface Irregularity λ/4 (Flatness) Substrate BK7 Shape Square Beam Deviation < 5' Length 10 mm Damage Threshold Pulsed 0.3 J/cm² (10 ns, 20 Hz) Weight 5 g Angle of Incidence 0° Transmittance Tolerance ±10% Supplier Location California, USA See product details More from OptoSigma
Cube Beamsplitter	50:50	350 - 2000 nm (Customizable)	10 x 10 x 10 mm	3 weeks	$ 185.00
Product Code Wavelength Range 350 - 2000 nm (Customizable) Dimensions 10 x 10 x 10 mm Thickness 10 mm Parallelism < 5' Split Ratio (R:T) 50:50 Clear Aperture > 9 x 9 x 9 mm Surface Quality 40-20 scratch-dig Surface Irregularity < λ/10 (Flatness) Substrate N-BK7 Shape Cube Angle < 5' Thickness Tolerance ±0.1 mm Chamfer < 0.25 mm (45°) Supplier Location China See product details More from Band-Optics
Cube Beamsplitter	70:30	700 - 1100 nm	12.7 mm (0.5")	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") Split Ratio (R:T) 70:30 Clear Aperture > 10.16 x 10.16 mm Surface Quality 40-20 scratch-dig Surface Irregularity λ/10 (633 nm, Flatness) Substrate N-BK7 Shape Cube Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Length 12.7 mm (0.5") Transmitted Wavefront Error < λ/4 (633 nm) Supplier Location New Jersey, USA See product details More from Thorlabs
Cube Beamsplitter	50:50 (±5%)	450 - 700 nm	10 x 10 mm	Contact Supplier	$ 204.00
Product Code Wavelength Range 450 - 700 nm Center Wavelength 450 - 700 nm Transmittance 45% Dimensions 10 x 10 mm Split Ratio (R:T) 50:50 (±5%) Clear Aperture 8 x 8 mm Surface Quality 40-20 scratch-dig Surface Irregularity λ/4 (633 nm, Flatness) Substrate BK7 Shape Prism Beam Deviation < 5' Transmittance Tolerance ±5% Supplier Location Lithuania See product details More from EKSMA Optics