Europe, UK, Asia & RoW: [email protected] +44 (0)1622 859444 | USA & Canada: [email protected] +1 401-583-7846

My Cart

Plate Beamsplitter Precision Range 50/50 Visible 450-700nm 25x15x6mmthk

Only 1 left in stock
SKU: BQN25044
More Information
Length (mm) 25
Width (mm) 15
Thickness (mm) 6
Reflection (%) 50
Transmission (%) 50
Wavelength cut-off (nm) 700
Wavelength cut-on (nm) 450

Looking For a Custom Optical Solution? Enquire

Precision grade plate beam splitters offer higher flatness and parallel specifications particularly useful in laser and imaging applications. Both faces of these precision beamsplitters are polished to a high degree of flatness of λ/4 and have excellent surface quality. Precision splitters are made from high quality optically polished BK7 with both surfaces controlled to a high degree of parallelism.

Our stock ranges of precision beamsplitters are available for use in Visible, Near Infrared and Telecoms wavelengths with 50/50 split ratio.  The beamsplitter coating is a high quality dielectric coating, the non-splitting face of the beamsplitter is multilayer antireflective coated to eliminate second face ghosting effects.

For more information on our stock range of precision beamsplitters, or to enquire about a custom quote, please contact our technical sales team.


Surface Quality:
Flatness (typical):

Beamsplitter Coating:

AR Coating:

Polarisation Ratio:

± 0.3 mm (≤100mm)
± 0.5 mm (>100mm)
± 0.2 mm
40/20 scratch/dig
0.5-1.5 λ/10mm dia
1-2 λ/25mm dia
<30 arcsec
Visible R 50%
NIR R 50%
NIR/Telcom R 50%
Visible: BBAR Ravg 0.5% @450-900nm (AV2)
NIR: BBAR Ravg 0.4% @630-1100nm (AI1)
NIR/Telecom: BBAR Ravg 0.6%@1050-1700nm(AI2)
Rs/Rp = 2 (approx. for all types)

Cutting down of stock components to smaller diameters and sizes.
Mounting options.
Special beamsplitter ratio options available at short notice.