CBS20, Standard Cube Beamsplitters, 12.5mm, SWIR Coating 1100-1600nm, K9 Optical Glass


Standard Cube Beamsplitters

Compared with the plate beamsplitters, the optical path length of the reflection and transmission light of the cube beamsplitters are equal, and there is no trouble with beam translation, ghost images, and interference.

Standard cube beamsplitters are usually used for energy splitting in situations where the polarization state is not sensitive.

Due to the split coating being all dielectric, there is no problem of light energy absorption.


Technical Specifications

MaterialK9 Optical Glass
Surface Quality40-20
Transmission Beam Deviation±5 arcmin
Dimensions Tolerance±0.2mm
Coating-Hypotenuse Beam Splitting Coating
Coating-Right Angle SurfaceBBAR

Surface Flatnessλ/ 10 @ 633 nm
Clear Aperture90%
Reflection Beam Deviation 90°±5”
BevelProtective Bevel
Split Ratio ToleranceR/T ±10% (AVG of Designed Bandwidth)
Induced Damage Threshold>500mJ/cm², 20ns, 20Hz, @1064nm

Standard Cube Beamsplitters 400-700nm
Standard Cube Beamsplitters 700-1100nm
Standard Cube Beamsplitters 1100-1600nm

Kindly Reminder

It should be noted that because this kind of split coating itself has an element of polarization effect, the transmitted beam is partially polarized.

If you want to avoid the influence of polarization sensitivity, it is recommended to use our XXX- polarization splitting prism, or XXX- depolarization splitting prism.

Weight N/A

30R/70T, 50R/50T, 70R/30T


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