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Knight Optical - Model BQN2544 -Precision Plate Beamsplitter
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.
- Diameter (mm): 25
- Thickness (mm): 4
- Reflection (%): 50
- Transmission (%): 50
- Wavelength cut-off (nm): 700
- Wavelength cut-on (nm): 450
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.
- Material: N-BK7
- Diameter: +0/-0.1mm
- Length/Width: ±0.1 ±0.1 mm
- Thickness: 40/20 scratch/dis
- Surface Quality: 1 /4 wave over 90% aperture
- Flatness (typical): <1 arcmin Visible R 50%
- Parallelism: NIRR50%
- Beamsplitter Coating: NIR/TelcomR50%, Visible: BBAR Ravs 0.5% @450-900nm (AV2), NIR: BBAR Rave 0.4% @630-110Onm (AID
- AR Coating: NIR/Telecom: BBAR Rave 0.6%@1050-1700nm(AI2), Rs/Rp = 2 (approx. for all types)
- Polarisation Ratio: