Economical polarizers, useful when the extinction ratio of a crystal polarizer is not required. A polarizing cube beamsplitter consists of a pair of right angle prisms cemented together. The hypotenuse face of one prism is coated with a special multilayer dielectric coating. When non-polarized light is normally incident upon the entrance face, it is separated into two polarized beams, emerging through two adjacent faces in perpendicular directions and polarized orthogonally to each other. The transmitted beam is p-polarized while the reflected beam is s-polarized. When the linearly polarized light is incident, it is similarly divided into two beams in a ratio depending upon the orientation of the electric field vector of the incident light beam. These polarizing beamsplitters are available for many common laser wavelegths and broadband ranges. | |
Laser Line Polarizing Beamsplitter Cubes | Incoming Beam | Outgoing Beam | | randomly polarized light | s-polarized and p-polarized light | | natural light |
Low PER Version Specifications: | Dimension Tolerance: | ±0.2mm | | Flatness: | λ /4 @ 632.8 nm per 25mm | | Surface Quality: | 60/40 scratches and dig | | Extinction Ratio: | >300:1 | | Beam Deviation: | <3 arc minutes | | Principal Transmittance: | >95% and Ts<0.3% | | Principal Reflectance: | Rs>99% and Rp<5% | | Coatings: | Polarization beamsplitter coating on hypotenuse face, AR-coatings (R< 0.25%) on all input and output face. | | Standard Coating wavelength: | 405, 488, 532, 632.8, 650, 808, 850, 980, 1064, 1310, 1550 nm |
Note: These items are not stocked. Please specify your required dimensions with tolerances. Other wavelengths on request.
High PER Version Specifications: | Material: | BK7 grade A, fine annealed optical glass | | | Dimension Tolerance: | ± 0.15 | | Flatness: | λ/4 @ 632.8 nm | | Surface Quality: | 60-40 scratch-dig | | Clear Aperture: | > 90% dimension | | Extinction ratio: | Tp/Ts > 1000/1 | | Beam Deviation: | 0° ± 3´(Tp), 90° ± 5´(Rs) | | Angle of Incidence: | 0° ~ 2° | | Coatings: | Single wavelength polarization partial reflectance on hypotenuse face. Coatings of outside surfaces: multilayer AR V-coating, R<0.15% | | Temperature Range: | -30°C to +70°C |
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| Order No. | Wavelength (nm) | Tp | Rs | a=b=c (mm) | 50.010.00054 | 441.6 | 96% | 99.9% | 10.0 | | 50.010.00055 | 441.6 | 96% | 99.9% | 12.7 | | 50.010.00056 | 441.6 | 96% | 99.9% | 25.4 | | 50.010.00057 | 488.0 | 96% | 99.9% | 10.0 | | 50.010.00058 | 488.0 | 96% | 99.9% | 12.7 | | 50.010.00059 | 488.0 | 96% | 99.9% | 25.4 | | 50.010.00060 | 532.8 | 96% | 99.9% | 10.0 | | 50.010.00061 | 532.8 | 96% | 99.9% | 12.7 | | 50.010.00062 | 532.8 | 96% | 99.9% | 25.4 | 50.010.00063 | 633 | 96% | 99.9% | 10.0 | | 50.010.00064 | 633 | 96% | 99.9% | 12.7 | | 50.010.00065 | 633 | 96% | 99.9% | 25.4 | | 50.010.00066 | 633 | 96% | 99.9% | 50.8 | | 50.010.00067 | 830 | 96% | 99.9% | 10.0 | | 50.010.00068 | 830 | 96% | 99.9% | 12.7 | | 50.010.00069 | 830 | 96% | 99.9% | 25.4 | | 50.010.00070 | 1064 | 96% | 99.9% | 10.0 | | 50.010.00071 | 1064 | 96% | 99.9% | 12.7 | | 50.010.00072 | 1064 | 96% | 99.9% | 25.4 | | 50.010.00073 | 1310 | 96% | 99.9% | 5.0 |
Note: Other dimensions and wavelengths on request.
High Power Polarization Beamsplitter Our optically contacted Polarization Beam Splitter can be used as high as 10 J/cm2 @ 1064nm, 20ns, 20Hz laser. | High Damage Threshold: | 10 J/cm2 @ 1064nm 20ns, 20Hz | | Optically Contacted: | Epoxy Free | | Transmission: | > 96% @ Central Wavelength | | Extinction Ratio: | Better than 35dB | | Dimension: | from 1mm to 38 mm | | Various Wavelengths Available | |
High Power PBS at 1064nm Standard Products:Specifications: | Optically contacted (not glued) | | | Substrate Material: | BK7 | | Wavelength: | 1064nm | | Clear Aperture: | >70% central | | Surface Quality: | 40/20 (20/10 available) | | Surface Figure: | < 1/8 wave @633nm | | AR Coating: | R< 0.2% @1064 nm | | PBS Coating: | Tp>96% @1064nm | | Extinction Ratio: | >30dB | | Laser Damage Threshold: | >10 J/cm2 at 1064nm for 10 nsec pulse |
| |  | | PBS @ 1064nm |
| Part No. | Size Tolerance | 50.010.00157 | 5x5mm +/-0.1 | | 50.010.00158 | 6x6mm +/-0.1 | | 50.010.00159 | 8x8 mm +/-0.2 | | 50.010.00160 | 10x10 mm +/-0.2 | | 50.010.00161 | 12.7x12.7 mm +/-0.2 |
Broadband Polarizing Beamsplitter Cubes | Incoming Beam | Outgoing Beam | | randomly polarized | Same as incoming light | | natural light |
Low PER Version Specifications: | Dimension Tolerance: | ±0.2mm | | Flatness: | λ /4 @ 632.8 nm per 25mm | | Surface Quality: | 60/40 scratches and dig | | Extinction Ratio: | >200:1 | | Beam Deviation: | <3 arc minutes | | Principal Transmittance: | >95% and Ts<0.3% | | Principal Reflectance: | Rs>99% and Rp<5% | | Coatings: | Polarization beamsplitter coating on hypotenuse face, pAR-coatings (R< 0.25%) on all input and output face. | | Standard Coating wavelength: | 450-650, 650-900, 900-1200, 1200-1550, 1500-1610 nm |
 |  | PBS @ 450-650nm | PBS @ 650-900nm |
Note: These items are not stocked. Please specify your required dimensions with tolerances. Other wavelength ranges on request.
High PER Version Specifications: | Material: | SF2 | | | Dimension Tolerance: | ± 0.15 | | Flatness: | λ/4 @ 632.8 nm | | Surface Quality: | 60-40 scratch-dig | | Clear Aperture: | > 90% dimension | | Extinction Ratio: | Tp/Ts > 500/1 | | Beam Deviation: | 0° ± 3´(T), 90° ± 5´(R) | | Angle of Incidence: | 0° ± 2° | | Coatings: | Single wavelength polarization partial reflectance on hypotenuse face. Coatings of outside surfaces: broadband multilayer AR V-coatings, Rave<0.5% | | Temperature Range: | -30°C to +70°C |
| Order No. | Wavelength | Tp | Ts | a=b=c (mm) | | 50.010.00074 | 450-650 | 95% | 99.8% | 10.0 | | 50.010.00075 | 450-650 | 95% | 99.8% | 12.7 | | 50.010.00076 | 450-650 | 95% | 99.8% | 25.4 | | 50.010.00077 | 450-650 | 95% | 99.8% | 50.8 | | 50.010.00078 | 650-900 | 95% | 99.8% | 12.7 | | 50.010.00079 | 650-900 | 95% | 99.8% | 25.4 | 50.010.00080 | 900-1200 | 95% | 99.8% | 12.7 | | 50.010.00081 | 900-1200 | 95% | 99.8% | 25.4 | | 50.010.00082 | 1200-1600 | 95% | 99.8% | 12.7 | | 50.010.00083 | 1200-1600 | 95% | 99.8% | 25.4 |
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