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	Beam Deviation	Availability	Price (USD)
Cube Beamsplitter	50:50	1300 nm	< 5'	6 - 12 weeks	$ 305.00
Product Code Wavelength Range 1300 nm Center Wavelength 1300 nm Coating Dielectric Transmittance 50% Dimensions 10 mm Split Ratio (R:T) 50:50 Beam Deviation < 5' Surface Irregularity λ/4 (Flatness) Surface Quality 20-10 scratch-dig Substrate BK7 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	30:70	1100 - 1600 nm	0° (±5', Transmitted)	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) 30:70 Beam Deviation 0° (±5', Transmitted) Surface Quality 40-20 scratch-dig Substrate N-BK7 Clear Aperture > 20.3 x 20.3 mm 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	400 - 640 nm	< 2'	In stock	$ 294.00
Product Code Wavelength Range 400 - 640 nm Coating BBAR (400 - 640 nm) Reflectance < 0.5% (400 - 640 nm, Average) Transmittance 45% (Absolute) Dimensions 25 x 25 x 25 mm (±0.1 mm) Split Ratio (R:T) 50:50 Beam Deviation < 2' Surface Irregularity λ/8 (Flatness) Surface Quality 40-20 scratch-dig Substrate N-BK7 Clear Aperture > 22.5 x 22.5 x 22.5 mm Shape Cube Coating Features Broadband Transmittance Tolerance ±10% Bevels Protective bevel as needed Supplier Location New Jersey, USA See product details More from Edmund Optics
Cube Beamsplitter	30:70	400 - 700 nm	< 3'	In stock	$ 225.00
Product Code Wavelength Range 400 - 700 nm Coating Magnesium Fluoride Transmittance 70% (400 - 700 nm, Average) Dimensions 15 x 15 x 15 mm Split Ratio (R:T) 30:70 Beam Deviation < 3' Surface Irregularity λ/4 (PV, Flatness) Surface Quality 60-40 scratch-dig Substrate N-BK7 Clear Aperture > 13.5 x 13.5 x 13.5 mm 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 (±5%)	750 - 1100 nm	< 5'	4 - 5 days	$ 187.00
Product Code Wavelength Range 750 - 1100 nm Center Wavelength 750 - 1100 nm Transmittance 45% Dimensions 25 x 25 mm Split Ratio (R:T) 50:50 (±5%) Beam Deviation < 5' Surface Irregularity λ/4 (633 nm, Flatness) Surface Quality 40-20 scratch-dig Substrate BK7 Clear Aperture 20 x 20 mm Shape Prism Transmittance Tolerance ±5% Supplier Location Lithuania See product details More from EKSMA Optics
Cube Beamsplitter	50:50	488 nm	< 5'	2 weeks	$ 356.00
Product Code Wavelength Range 488 nm Center Wavelength 488 nm Coating Dielectric Transmittance 50% Dimensions 15 mm Split Ratio (R:T) 50:50 Beam Deviation < 5' Surface Irregularity λ/4 (Flatness) Surface Quality 20-10 scratch-dig Substrate BK7 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	390 - 410 nm	< 5'	2 weeks	$ 415.00
Product Code Wavelength Range 390 - 410 nm Center Wavelength 405 nm Coating Dielectric Transmittance 50% (Average) Split Ratio (R:T) 50:50 Beam Deviation < 5' Surface Irregularity λ/4 (Flatness) Surface Quality 20-10 scratch-dig Substrate BK7 Damage Threshold Pulsed 0.3 J/cm² (10 ns, 20 Hz) Weight 70 g Angle of Incidence 0° Transmittance Tolerance ±3% Supplier Location California, USA See product details More from OptoSigma
Cube Beamsplitter	0.5525:99.448	1064 nm (Center Wavelength)	±2'	In stock	$ 242.00
Product Code Wavelength Range 1064 nm (Center Wavelength) Center Wavelength 1064 nm Reflectance < 0.25% Transmittance < 45% Dimensions 5 x 5 x 5 mm (±0.1 mm) Split Ratio (R:T) 0.5525:99.448 Beam Deviation ±2' Surface Irregularity λ/8 (Flatness) Surface Quality 40-20 scratch-dig Substrate N-BK7 Clear Aperture 4.5 x 4.5 x 4.5 mm Shape Cube Transmittance Tolerance ±5% Bevels Protective as needed Supplier Location New Jersey, USA See product details More from Edmund Optics
Cube Beamsplitter	10:90	1100 - 1600 nm	90° (±5', Reflected) < 5' (Transmitted)	In stock	$ 212.64
Product Code Wavelength Range 1100 - 1600 nm Reflectance < 0.5% (1100 - 1600 nm, 0°, Average) Dimensions 12.7 mm (0.5") Split Ratio (R:T) 10:90 Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Surface Irregularity λ/10 (633 nm, Flatness) Surface Quality 40-20 scratch-dig Substrate N-BK7 Clear Aperture > 10.16 x 10.16 mm 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	90:10	400 - 700 nm	90° (±5', Reflected) < 5' (Transmitted)	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 Split Ratio (R:T) 90:10 Beam Deviation 90° (±5', Reflected) < 5' (Transmitted) Surface Irregularity λ/10 (633 nm, Flatness) Surface Quality 40-20 scratch-dig Substrate N-BK7 Clear Aperture > 8 x 8 mm 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	50:50	700 - 1100 nm	< 5'	6 - 12 weeks	$ 237.00
Product Code Wavelength Range 700 - 1100 nm Center Wavelength 700 - 1100 nm Transmission Wavelength 900 nm Coating Dielectric Transmittance 47% (900 nm) Dimensions 10 x 10 mm Split Ratio (R:T) 50:50 Beam Deviation < 5' Surface Irregularity λ/4 (Flatness) Surface Quality 40-20 scratch-dig Substrate BK7 Shape Square 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	700 - 1100 nm	±3'	In stock	$ 195.00
Product Code Wavelength Range 700 - 1100 nm Coating Magnesium Fluoride Dimensions 10 x 10 x 10 mm (±0.1 mm) Split Ratio (R:T) 50:50 Beam Deviation ±3' Surface Quality 40-20 scratch-dig Substrate N-BK7 Shape Cube Bevels Protective bevel as needed Supplier Location New Jersey, USA See product details More from Edmund Optics
Cube Beamsplitter	50:50	780 nm	< 5'	In stock	$ 356.00
Product Code Wavelength Range 780 nm Center Wavelength 780 nm Coating Dielectric Transmittance 50% Dimensions 15 mm Split Ratio (R:T) 50:50 Beam Deviation < 5' Surface Irregularity λ/4 (Flatness) Surface Quality 20-10 scratch-dig Substrate BK7 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	720 - 1080 nm	< 2'	In stock	$ 268.00
Product Code Wavelength Range 720 - 1080 nm Reflectance < 0.5% (720 - 1080 nm, Average) Transmittance 45% (Average) 45% (Absolute) Dimensions 15 x 15 x 15 mm (±0.1 mm) Split Ratio (R:T) 50:50 Beam Deviation < 2' Surface Irregularity λ/8 (Flatness) Surface Quality 40-20 scratch-dig Substrate N-BK7 Clear Aperture > 13.5 x 13.5 x 13.5 mm 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	1100 - 1600 nm (Coating Range)	90° (±20', Reflected)	In stock	$ 352.81
Product Code Wavelength Range 1100 - 1600 nm (Coating Range) Reflectance < 0.5% (0°, 1100 - 1600 nm, Average, 0°) Split Ratio (R:T) 50:50 Beam Deviation 90° (±20', Reflected) Surface Irregularity λ/4 (633 nm, PV, Flatness) Surface Quality 40-20 scratch-dig Substrate N-BK7 Clear Aperture > Ø 20.3 mm Shape Cube Damage Threshold Pulsed 0.25 J/cm² (0.282 mm, 10 ns, 10 Hz, 1542 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	30:70	400 - 700 nm	< 3'	In stock	$ 197.00
Product Code Wavelength Range 400 - 700 nm Coating Magnesium Fluoride Transmittance 70% (400 - 700 nm, Average) Dimensions 10 x 10 x 10 mm Split Ratio (R:T) 30:70 Beam Deviation < 3' Surface Irregularity λ/4 (PV, Flatness) Surface Quality 60-40 scratch-dig Substrate N-BK7 Clear Aperture > 9 x 9 x 9 mm 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	488 nm	< 5'	2 weeks	$ 305.00
Product Code Wavelength Range 488 nm Center Wavelength 488 nm Coating Dielectric Transmittance 50% Dimensions 10 mm Split Ratio (R:T) 50:50 Beam Deviation < 5' Surface Irregularity λ/4 (Flatness) Surface Quality 20-10 scratch-dig Substrate BK7 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	1100 - 1620 nm	< 2'	In stock	$ 294.00
Product Code Wavelength Range 1100 - 1620 nm Reflectance < 0.5% (1100 - 1620 nm, Average) Transmittance 45% (Average) 45% (Absolute) Dimensions 25 x 25 x 25 mm (±0.1 mm) Split Ratio (R:T) 50:50 Beam Deviation < 2' Surface Irregularity λ/8 (Flatness) Surface Quality 40-20 scratch-dig Substrate N-BK7 Clear Aperture > 22.5 x 22.5 x 22.5 mm Shape Cube Transmittance Tolerance ±10% Bevels Protective bevel as needed Supplier Location New Jersey, USA See product details More from Edmund Optics
Cube Beamsplitter	-	532 nm	< 3'	Contact Supplier	$ 142.00
Product Code Wavelength Range 532 nm Center Wavelength 532 nm Beam Deviation < 3' Surface Irregularity λ/4 (633 nm, Flatness) Surface Quality 40-20 scratch-dig Substrate BK7 Shape Prism Supplier Location Lithuania See product details More from EKSMA Optics
Cube Beamsplitter	70:30	720 - 1080 nm	2'	In stock	$ 268.00
Product Code Wavelength Range 720 - 1080 nm Reflectance < 0.5% (720 - 1080 nm, Average) Transmittance 27% (Average) 27% (Absolute) Dimensions 25 x 25 x 25 mm (±0.1 mm) Split Ratio (R:T) 70:30 Beam Deviation 2' Surface Irregularity λ/8 (Flatness) Surface Quality 40-20 scratch-dig Substrate N-BK7 Clear Aperture > 22.5 x 22.5 x 22.5 mm Shape Cube Transmittance Tolerance ±10% Bevels Protective bevel as needed Supplier Location New Jersey, USA See product details More from Edmund Optics