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Compared with beamsplitter plate, Non-polarizing beamsplitter cube has the following advantages:             

Identical path lengths for both the reflected and the transmitted beams               


The transmitted beam is neither displaced nor deflected.               

Stable and compact.           

Easy operation            

Easy to Mount/Align             

The smallest size we can supply is 0.8x0.8x0.8mm.


                                   

Characteristic

Material: N-BK7 Grade A Optical Glass                 


Beamsplitter Coating for: 400 - 700nm, 700 - 1100nm, 1100 - 1600nm, etc  

Split Ratio(R:T): 10:90, 30:70, 50:50, 70:30, or 90:10, etc

AR-coatings: on all input and output faces                                                                                                                            


General Specifications:

Cube Size

5mm , 10mm , 12.7 mm , 20 mm , 25.4 mm, upon request

Wavelength Range

400 - 700 nm

700 -1100 nm

Other range available

Material

N-BK7

Split Ratio(R:T)

50:50

 Other ratio available

Reflected Beam Deviation

90° ± 5 arcmin

AR-Coating Reflection

Ravg <0.5% @ 0 degree AOI  all input and output face

Overall Performance of

50:50 Split Ratio

Tabs= 47 ± 10%, Rabs= 47 ± 10%,

 Tabs + Rabs > 90%
|Ts - Tp| < 10% and |Rs - Rp| < 10%

Tabs = 47 ± 10%, Rabs = 47 ± 10%,

Tabs + Rabs > 90%,
|Ts - Tp| < 10% and |Rs - Rp| < 10%

Dimension Tolerance

+/- 0.2mm

Surface Quality

40-20 scratch and dig

Surface Flatness

λ/4  up to  λ/ 8 @ 633 nm

Wavefront Distortion Error

< λ/4 @ 633 nm

Clear Aperture

>80% of Entrance Face