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Polarization Optics

Beamsplitter

Beamsplitters are optical components used to split input light into two separate parts,mainly include cube polarization beamsplitter, plate polarization beamsplitter and cube non-polarization beamspli..

Beamsplitter

产品说明

Beamsplitters are optical components used to split input light into two separate parts,mainly include cube polarization beamsplitter, plate polarization beamsplitter and cube non-polarization beamsplitter.

Cube (non-)polarization beamsplitter consists of a pair of right angle prisms cemented together with a dielectric (non-)polarization beamsplitter coating on the hypotenuse of one of the prisms. An anti-reflection coating has been applied to each outside surface of the beamsplitter to achieve less than 0.2% reflection per surface.

Plate beamsplitters are used for most laser applications as they exhibit low absorption. And the performance of a beamsplitter is mainly dependent on the coating specifications.

Applications:

Capability:

PARAMETER COMMERCIAL HIGH PRECISION
Material N-BK7.Fused Silica,N-SF11,or depend on request
Clear Aperture ≥85% ≥95%
Dimension Tolerance ±0.1mm ±0.02mm
Flatness λ/4 @632.8nm λ/10@632.8nm
Surface Quality(S/D) 40-20 10-5
Beam Deviation ±3 arcmin ±30 arcsec
Angle Tolerance ±1 arcmin ±10arcsec
Assembly Cemented with Epoxy or optical bonding
Coating PBS Coating: Tp>98%,Rs>99%;Extinction Ratio>30dB

NPBS Coating: Tp=Ts=Rp=Rs=50%±3%

AR:R<0.2%@λc±40nm

Other material ,sizes, tolerance and coatings are also available upon request.