BRD Optical
Beam Splitter Coatings For Optical Products
Beam Splitter Coatings

PARAMETER:

Beam splitter divides or combines beams with desired transmittance and reflectance in a required wavelength region, or divides beam light into the P-polarization and S-polarization components.

  • Description

Beam splitter divides or combines beams with desired transmittance and reflectance in a required wavelength region, or divides beam light into the P-polarization and S-polarization components.

1. 45°Beam Splitters

45°Beam Splitters









Substrate: Fused silica, BK7
Surface Figure: <λ/10 @ 632.8nm
Surface Quality: 40-20
Chamfer: 0.5mm×45°
Coating Material: Electron beam deposited dielectric: multi-layers
Incident: 0°,45°
Laser-Induced Damage Threshold: >5J/cm2 (1.06μm,1ns)





Incident AngleWavelength
 (nm)
Tave/RaveSeparatingTp/RpTolerance
Tp/Rp
45°510-50050/50

±3%
45°780
50/50
±3%
45°632.850/50

±3%





2. Polarizing Beam splitter Plates

Polarizing Beam splitter Plates






Substrate Fused: silica, BK7

Surface Figure: <λ/10 @ 632.8nm
Surface Quality: 40-20
Polarizing: Tp≥96%; Ts≤1%
Extinction Ratio: Tp:Ts>100:1
Wavelength Range: Visible, Near Infrared





Wavelength(nm)Wavelength(nm)
20/25.4/30780
20/25.4/301064
20/25.4/301310
20/25.4/301550





3. Dichroic Beam Splitters

Dichroic Beam Splitters





Substrate: Fused silica, BK7
Surface Figure: <λ/10 @ 632.8nm
Surface Quality: 40-20
Chamfer: 0.5mm×45°
Coating Material: Electron beam deposited dielectric: multi-layers
Incident: 0°,
Laser-Induced Damage Threshold: >5J/cm2 (1.06μm,1ns)




Incident AngleTWavelength
 (nm)
TransmissionRWavelengthReflectance
808>90%946>99.5%
808>90%1064>99.5%
808>90%1320>99.5%
940>90%1030>99.5%




4. Polarizing Beam splitters Cubes

Polarizing Beam splitters Cubes







Substrate: Fused: silica, BK7

Surface Figure:  <λ/10 @ 632.8nm
Surface Quality: 40-20
Chamfer: 0.5mm×45°
Coating Material: Electron beam deposited dielectric: multi-layers
Incident:0°±2°
Polarizing: Tp≥98%; Ts≤0.2%
Extinction Ratio: Tp:Ts>500:1
AR Coating: R<0.25%


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