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Beamsplitters

Beamsplitter Cube

Compared with beamsplitter plate, 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             


                                   

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

Wavelength Range

400 - 700 nm

700 -1100 nm

1100 – 1600 nm

Other

Substrate

N-BK7

Split Ratio(R:T)

10:90

30:70

50:50

70:30

 other

Reflected Beam Deviation

90° ± 5 arcmin

AR-Coating Reflection

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

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

  


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