Beamsplitter Cube

Cube beamsplitters are constructed by cementing two precision right angle prism together with appropriate interference coating on the hypotenuse surface. The absorption loss to the coating is minimal transmission and reflection approach 50% (average) though output is partially polarized.

If polarization sensitivity is critical, we recommended that you select from our Polarization Cube Beamsplitter or Non-polarization Cube Beamsplitter.

Specifications

Material

BK7

Dimension And Tolerance

3x3, 5x5, 10x10, 12.7x12.7, 20x20, 25.4x25.4mm ±0.1mm or as requirement

Clear Aperture

>90%

Flatness

λ/[email protected] or better

Beam Deviation

<3 arc minutes;10arc seconds or better

Surface Quality

60/40, or better

Coating

Partial reflectance on hypotenuse face
AR coating on all entrances

T/R

50/50±5%, T=(Ts+Tp)/2, R=(Rs+Rp)/2, other T/R available

Damage Threshold

>500mJ/cm2, 20ns, 20Hz, @1064nm



Standard Coating wavelength:

Narrow Band: 488, 532, 632.8, 650, 808, 850, 980, 1064, 1310, 1550 nm
Broadband: 450-650, 650-900, 900-1200, 1200-1550, 1500-1610 nm




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