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	30:70	1100 - 1600 nm	5 x 5 x 5 mm	In stock	$ 178.19
Product Code Wavelength Range 1100 - 1600 nm Reflectance < 0.5% (1100 - 1600 nm, 0°, Average) Dimensions 5 x 5 x 5 mm Split Ratio (R:T) 30:70 Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Clear Aperture > 3.5 x 3.5 mm Surface Irregularity λ/10 (633 nm, Flatness) Substrate N-BK7 Surface Quality 40-20 scratch-dig Shape Cube Length 5 mm Transmitted Wavefront Error < λ/4 (633 nm) Supplier Location New Jersey, USA See product details More from Thorlabs
Cube Beamsplitter	10:90	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) 10:90 Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Clear Aperture > 8 x 8 mm Surface Irregularity λ/10 (633 nm, Flatness) Substrate N-BK7 Surface Quality 40-20 scratch-dig Shape Cube Length 10 mm Transmitted Wavefront Error < λ/4 (633 nm) Supplier Location New Jersey, USA See product details More from Thorlabs
Cube Beamsplitter	70:30	430 - 670 nm	10 x 10 x 10 mm (±0.1 mm)	In stock	$ 236.00
Product Code Wavelength Range 430 - 670 nm Reflectance < 0.5% (430 - 670 nm, Average) Transmittance 25% (Average) 25% (Absolute) Dimensions 10 x 10 x 10 mm (±0.1 mm) Split Ratio (R:T) 70:30 Beam Deviation < 2' Clear Aperture > 9 x 9 x 9 mm Surface Irregularity λ/8 (Flatness) Substrate N-BK7 Surface Quality 40-20 scratch-dig Shape Cube 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	20 x 20 mm	In stock	$ 297.00
Product Code Wavelength Range 400 - 700 nm Center Wavelength 400 - 700 nm Transmission Wavelength 550 nm Coating Dielectric Transmittance 45% (550 nm) Dimensions 20 x 20 mm Split Ratio (R:T) 50:50 Beam Deviation < 5' Surface Irregularity λ/4 (Flatness) Substrate BK7 Surface Quality 40-20 scratch-dig Shape Square Length 20 mm Damage Threshold Pulsed 0.3 J/cm² (10 ns, 20 Hz) Weight 20 g Angle of Incidence 0° Transmittance Tolerance ±10% Supplier Location California, USA See product details More from OptoSigma
Cube Beamsplitter	10:90	700 - 1100 nm	20 x 20 x 20 mm	In stock	$ 230.46
Product Code Wavelength Range 700 - 1100 nm Reflectance < 0.5% (700 - 1100 nm, 0°, Average) Dimensions 20 x 20 x 20 mm Split Ratio (R:T) 10:90 Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Clear Aperture > 16 x 16 mm Surface Irregularity λ/10 (633 nm, Flatness) Substrate N-BK7 Surface Quality 40-20 scratch-dig Shape Cube 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	720 - 1080 nm	50 x 50 x 50 mm (±0.1 mm)	In stock	$ 645.00
Product Code Wavelength Range 720 - 1080 nm Reflectance < 0.5% (720 - 1080 nm, Average) Transmittance 45% (Average) 45% (Absolute) Dimensions 50 x 50 x 50 mm (±0.1 mm) Split Ratio (R:T) 50:50 Beam Deviation < 2' Clear Aperture > 45 x 45 x 45 mm Surface Irregularity λ/8 (Flatness) Substrate N-BK7 Surface Quality 40-20 scratch-dig Shape Cube 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	15 mm	In stock	$ 148.00
Product Code Wavelength Range 400 - 700 nm Center Wavelength 400 - 700 nm Coating Chromium, Dielectric Transmittance 28% (Average) Dimensions 15 mm Split Ratio (R:T) 50:50 Beam Deviation < 5' Surface Irregularity λ/4 (Flatness) Substrate BK7 Surface Quality 40-20 scratch-dig Length 15 mm Damage Threshold Pulsed 0.3 J/cm² (10 ns, 20 Hz) Weight 9 g Angle of Incidence 0° Transmittance Tolerance ±5% Supplier Location California, USA See product details More from OptoSigma
Cube Beamsplitter	50:50	1300 - 1550 nm	20 x 20 mm	2 weeks	$ 297.00
Product Code Wavelength Range 1300 - 1550 nm Center Wavelength 1300 - 1550 nm Transmission Wavelength 1400 nm Coating Dielectric Transmittance 45% (1400 nm) Dimensions 20 x 20 mm Split Ratio (R:T) 50:50 Beam Deviation < 5' Surface Irregularity λ/4 (Flatness) Substrate BK7 Surface Quality 40-20 scratch-dig Shape Square Length 20 mm Damage Threshold Pulsed 0.3 J/cm² (10 ns, 20 Hz) Weight 21 g Angle of Incidence 0° Transmittance Tolerance ±10% Supplier Location California, USA See product details More from OptoSigma
Cube Beamsplitter	-	355 nm	-	Contact Supplier	$ 231.00
Product Code Wavelength Range 355 nm Center Wavelength 355 nm Beam Deviation < 3' Surface Irregularity λ/4 (633 nm, Flatness) Substrate UV Fused Silica Surface Quality 40-20 scratch-dig Shape Prism Supplier Location Lithuania See product details More from EKSMA Optics
Cube Beamsplitter	90:10	1100 - 1600 nm	25.4 mm (1")	In stock	$ 250.65
Product Code Wavelength Range 1100 - 1600 nm Reflectance < 0.5% (1100 - 1600 nm, 0°, Average) Dimensions 25.4 mm (1") Split Ratio (R:T) 90:10 Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Clear Aperture > 20.3 x 20.3 mm Surface Irregularity λ/10 (633 nm, Flatness) Substrate N-BK7 Surface Quality 40-20 scratch-dig Shape Cube Length 25.4 mm (1") Transmitted Wavefront Error < λ/4 (633 nm) Supplier Location New Jersey, USA See product details More from Thorlabs
Cube Beamsplitter	50:50	720 - 1080 nm	12.5 x 12.5 x 12.5 mm (±0.1 mm)	In stock	$ 253.00
Product Code Wavelength Range 720 - 1080 nm Reflectance < 0.5% (720 - 1080 nm, Average) Transmittance 45% (Average) 45% (Absolute) Dimensions 12.5 x 12.5 x 12.5 mm (±0.1 mm) Split Ratio (R:T) 50:50 Beam Deviation < 2' Clear Aperture > 11.25 x 11.25 x 11.25 mm Surface Irregularity λ/8 (Flatness) Substrate N-BK7 Surface Quality 40-20 scratch-dig Shape Cube Transmittance Tolerance ±10% Bevels Protective bevel as needed Supplier Location New Jersey, USA See product details More from Edmund Optics
Cube Beamsplitter	50:50	780 nm	10 mm	2 weeks	$ 305.00
Product Code Wavelength Range 780 nm Center Wavelength 780 nm Coating Dielectric Transmittance 50% Dimensions 10 mm Split Ratio (R:T) 50:50 Beam Deviation < 5' Surface Irregularity λ/4 (Flatness) Substrate BK7 Surface Quality 20-10 scratch-dig Length 10 mm Damage Threshold Pulsed 0.3 J/cm² (10 ns, 20 Hz) Weight 5 g Angle of Incidence 0° Transmittance Tolerance ±5% Supplier Location California, USA See product details More from OptoSigma
Cube Beamsplitter	50:50 (±5%)	450 - 700 nm	25 x 25 mm	4 - 5 days	$ 187.00
Product Code Wavelength Range 450 - 700 nm Center Wavelength 450 - 700 nm Transmittance 45% Dimensions 25 x 25 mm Split Ratio (R:T) 50:50 (±5%) Beam Deviation < 5' Clear Aperture 20 x 20 mm Surface Irregularity λ/4 (633 nm, Flatness) Substrate BK7 Surface Quality 40-20 scratch-dig Shape Prism Transmittance Tolerance ±5% Supplier Location Lithuania See product details More from EKSMA Optics
Cube Beamsplitter	50:50	700 - 1100 nm (Coating Range)	-	In stock	$ 337.37
Product Code Wavelength Range 700 - 1100 nm (Coating Range) Reflectance < 0.5% (0°, 700 - 1100 nm, Average, 0°) Split Ratio (R:T) 50:50 Beam Deviation 90° (±20', Reflected) Clear Aperture > Ø 20.3 mm Surface Irregularity λ/4 (633 nm, PV, Flatness) Substrate N-BK7 Surface Quality 40-20 scratch-dig Shape Cube Damage Threshold Pulsed 0.25 J/cm² (0.166 mm, 10 ns, 10 Hz, 810 nm) Transmitted Wavefront Error λ/4 (633 nm, RMS) Mount Cube, 8-32 Tap Housing Material Engraved Black Anodized Aluminum Housing Supplier Location New Jersey, USA See product details More from Thorlabs
Cube Beamsplitter	50:50 (±5%)	532 nm	15 x 15 mm	Contact Supplier	$ 204.00
Product Code Wavelength Range 532 nm Center Wavelength 532 nm Dimensions 15 x 15 mm Split Ratio (R:T) 50:50 (±5%) Beam Deviation 3' Clear Aperture 12 x 12 mm Surface Irregularity λ/4 (633 nm, Flatness) Substrate BK7 Surface Quality 40-20 scratch-dig Shape Prism Supplier Location Lithuania See product details More from EKSMA Optics
Cube Beamsplitter	50:50	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) 50:50 Beam Deviation ±3' Substrate N-BK7 Surface Quality 60-40 scratch-dig Shape Cube Bevels Protective bevel as needed Supplier Location New Jersey, USA See product details More from Edmund Optics
Cube Beamsplitter	30:70	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) 30:70 Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Clear Aperture > 10.16 x 10.16 mm Surface Irregularity λ/10 (633 nm, Flatness) Substrate N-BK7 Surface Quality 40-20 scratch-dig Shape Cube 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	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%) Beam Deviation < 5' Clear Aperture 8 x 8 mm Surface Irregularity λ/4 (633 nm, Flatness) Substrate BK7 Surface Quality 40-20 scratch-dig Shape Prism Transmittance Tolerance ±5% Supplier Location Lithuania See product details More from EKSMA Optics
Cube Beamsplitter	0.5525:99.448	532 nm (Center Wavelength)	12.5 x 12.5 x 12.5 mm (±0.1 mm)	In stock	$ 263.00
Product Code Wavelength Range 532 nm (Center Wavelength) Center Wavelength 532 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 Beam Deviation ±2' Clear Aperture 11.25 x 11.25 x 11.25 mm Surface Irregularity λ/8 (Flatness) Substrate N-BK7 Surface Quality 40-20 scratch-dig Shape Cube Transmittance Tolerance ±5% Bevels Protective as needed Supplier Location New Jersey, USA See product details More from Edmund Optics
Cube Beamsplitter	50:50	400 - 700 nm	-	In stock	$ 166.00
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 Beam Deviation < 5' Surface Irregularity λ/4 (Flatness) Substrate BK7 Surface Quality 20-10 scratch-dig Damage Threshold Pulsed 0.3 J/cm² (10 ns, 20 Hz) Weight 6 g Angle of Incidence 0° Coating Features Broadband Transmittance Tolerance ±5% Supplier Location California, USA See product details More from OptoSigma