Polarizer-Analyzer-Attenuator
Polarizer-Analyzer-Attenuator is a stacked series of ZnSe plates placed at Brewster’s angle to an incoming beam. At each plate, virtually all of the p-polarized component is transmitted, while most of the s-polarized component is reflected. The net result, after the beam has traversed several plates, is a beam which is virtually only p-polarized.
Applications
- Unpolarized beam polarization
- Laser beams polarization analysis
- Continuously variable attenuation of linearly polarized beams
- Electro-optic modulation systems
Features
- High-power handling
- Visible transmission for easy alignment
- Low-insertion loss
- High-extinction ratio (> 500:1)
- Broadband operation (2 to 14 µm)
- Optional exit port or heat sink cooling
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Specifications
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Model PAZ
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Plates
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6
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4
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2
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Transmission @ 10.6µm (aligned in a collimated, polarized beam)
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> 98%
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> 98%
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> 99%
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Beam deviation
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< 1mrad
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< 1mrad
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< 1mrad
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Extinction ratio
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> 500:1
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> 200:1
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> 30:1
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Standard apertures, air-cooled version
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6, 10, 15, 20, 25, 30, 35 mm
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Standard apertures, H2O-cooled version
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6, 10, 15, 20, 25, 30, 35 mm
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Wavelength region
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2 to 14 µm
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2 to 14 µm
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2 to 14 µm
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Germanium units (PAG) with higher extinction ratios are also available. Contact a II-VI sales representative for details.
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