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Optical Components from Tower Optical

Do you have special requirements or would like individual consultation? Please contact our engineers at:

Sales
Phone: +49 89 321412-43
sales[at]imm-photonics.de


Polarizating Beamsplitter Cubes

These beamsplitters are based upon using two complementary prisms. The output beam that is parallel to the input beam is p-polarized, while the orthogonal output beam is s-polarized.

Material BK7 grade A optical glass
Dimension range 3.2 mm to50.8 mm
Dimensional tolerance ± 3 arc min
Surface quality 60/40 scratch/dig
Beam deviation 3 arc min
Extinction ratio > 100:1
Principal transmittance Tp > 95 % and Ts < 1 %
Principal reflectance Rs > 99 % and Rp < 5%
Wavelength range 226 nm to 2300 nm
Polarization beam splitter coating On hypotenuse
AR coating R < 0.25 % per face

Non-polarizing Beamsplitter Plates

Non-Polarizing plate beamsplitter are mainly used to spilt a beam or combine beams. Both parts take different optical pathways.

Material BK7 grade A optical glass
Dimension range 10 mm to 50.8 mm
Dimensional tolerance ± 0.2 mm
Thickness tolerance ± 0.2 mm
Flatness λ/4 632.8 nm per 25 mm
Surface quality 60/40 scratch/dig
Parallelism 1 arc min
T/R 50/50 ± 5 % for random polarization T = (Ts + Tp), R = (Rs + Rp) / 2
Coating surface 1 Single wavelength partial reflectance
Coating surface 2 V AR coating
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