Variable Beamsplitters

VBS

Variable Beamsplitters
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VBS
With a variable beamsplitter, the incident angle of a laser can be changed. The (R:T) ratios can also be modified. This is commonly used to adjust the light intensity of the laser without a variable adjustment of the light intensity or the laser to be stabilized.
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Name Design wavelength Laser Damage Threshold Material Delivery Price Add to cart
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Variable Plate Beamsplitter Synthetic Fused Silica 50x50mm 266nm
VBS-50S03-1-266
266nm 1J/cm2 Synthetic fused silica
2 weeks
$460.00
Material Synthetic fused silica
Surface flatness λ
Parallelism <5″
Coating Front surface ; Dielectric multilayer coating
Rear surfaces ; Multilayer antireflection coating
Surface Quality (Scratch-Dig) 10−5
Clear aperture Circle that inscribed in a square of 90% of the dimensions
Effective beam incident diameter Ellipsoidal 30×43mm (Angle of inclinaison)
Dimensions 50 × 50mm
Wavelength range 266nm
S-Polarization Transmittance (θ=0°) >90%
S-Polarization Transmittance (θ=45°) <5%
Laser Damage Threshold <sup>*</sup> 1J/cm2
Availability Please contact
i
Variable Plate Beamsplitter BK7 50x50mm 1064nm
VBS-50S03-1-1064
1064nm 3.5J/cm2 BK7
6-12 weeks
$430.00
Material BK7
Surface flatness λ
Parallelism <5″
Coating Front surface ; Dielectric multilayer coating
Rear surfaces ; Multilayer antireflection coating
Surface Quality (Scratch-Dig) 10−5
Clear aperture Circle that inscribed in a square of 90% of the dimensions
Effective beam incident diameter Ellipsoidal 30×43mm (Angle of inclinaison)
Dimensions 50 × 50mm
Wavelength range 1064nm
S-Polarization Transmittance (θ=0°) >95%
S-Polarization Transmittance (θ=45°) <5%
Laser Damage Threshold <sup>*</sup> 3.5J/cm2
Availability Please contact
i
Variable Plate Beamsplitter Synthetic Fused Silica 50x50mm 355nm
VBS-50S03-1-355
355nm 1J/cm2 Synthetic fused silica
6-12 weeks
$460.00
Material Synthetic fused silica
Surface flatness λ
Parallelism <5″
Coating Front surface ; Dielectric multilayer coating
Rear surfaces ; Multilayer antireflection coating
Surface Quality (Scratch-Dig) 10−5
Clear aperture Circle that inscribed in a square of 90% of the dimensions
Effective beam incident diameter Ellipsoidal 30×43mm (Angle of inclinaison)
Dimensions 50 × 50mm
Wavelength range 355nm
S-Polarization Transmittance (θ=0°) >93%
S-Polarization Transmittance (θ=45°) <5%
Laser Damage Threshold <sup>*</sup> 1J/cm2
Availability Please contact
i
Variable Plate Beamsplitter BK7 50x50mm 532nm
VBS-50S03-1-532
532nm 2.5J/cm2 BK7
6-12 weeks
$430.00
Material BK7
Surface flatness λ
Parallelism <5″
Coating Front surface ; Dielectric multilayer coating
Rear surfaces ; Multilayer antireflection coating
Surface Quality (Scratch-Dig) 10−5
Clear aperture Circle that inscribed in a square of 90% of the dimensions
Effective beam incident diameter Ellipsoidal 30×43mm (Angle of inclinaison)
Dimensions 50 × 50mm
Wavelength range 532nm
S-Polarization Transmittance (θ=0°) >95%
S-Polarization Transmittance (θ=45°) <5%
Laser Damage Threshold <sup>*</sup> 2.5J/cm2
Availability Please contact

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◦The variable beamsplitter has a dielectric multilayer coating which has excellent durability and light resistance.
◦The beam shift caused by the tilt of the beamsplitter can be removed by using a correcting plate. (See how to use)
◦It can be used for arbitrary polarization. However, the transmittance characteristic depends on the polarization.