Non-Polarizing Beamsplitter Cubes » Artifex Engineering

Description

Non-polarizing beamsplitters have minimal polarization sensitivity. Therefore they may be used in polarized optical systems.

Due to the metallic component of the hybrid coating, these beamsplitters are not intended for use with high power lasers since they show some absorption – typically about 8%.

Non‑polarizing beamsplitter cubes are less sensitive to changes in angle of incidence than pure dielectric unpolarized beamsplitters.

The non-polarizing beamsplitter cube consists of a pair of precision right-angle prisms carefully cemented together to minimize wavefront distortion and beam skewing.

The hypotenuse of one prism is coated with a multilayer beamsplitter coating tuned to the application.

The four outside surfaces of the prism are anti-reflection (AR) coated with “V” type or broadband coatings to minimize surface reflection losses over the specific wavelength range.

Specifications

Specification	Available Quality
Range of dimensions	0.8mm-100mm
Range of splitting ratios	50/50 (R/T*)
Accuracy of splitting ratio	±3% (single wavelength); ±5% (broadband)
Highest available surface figure	λ/10 (DIN: 3/0.2)
Highest available surface quality	20-10 S/D (DIN: 5/2×0.06)
Wavelength range	single wavelength or broadband
Highest available tolerance of beam deviation	5″ (arcsec)