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Product Details
Broadband Beamsplitting Polarizer
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For applications involving broadband or tunable wavelength sources, Meadowlark Optics presents a line of Broadband Beamsplitting Polarizers covering the visible to near infrared region. These cubes offer increased utility for a range of polarization needs. As with the Laser Line Beamsplitting Polarizers, two usable polarization forms result, conveniently separated by 90°.
For unpolarized input, incident light will be equally split, 50% transmitted and reflected. Varying the input polarization axis will change the split ratio. These broadband designs require well-collimated input and accurate angular alignment for optimal performance. All four entrance and exit faces are antireflection coated to minimize losses.
COMMON SPECIFICATIONS
- Substrate Material: SF 2
- Surface Quality: 40 –20 scratch -dig
- Surface Flatness: ≤ λ/8 (@ 633 nm)
- Beam Deviation: ≤ 3 arc-min
- Dimension Tolerance: ≤ +0/-0.20 mm
- Reflectance (per surface): ≤ 0.5% avg
- Contrast Ratio: ≥ 500:1 (Average)
- Transmission (p-polarized light): ≥90% avg
- Transmission (s-polarized light): ≥99.8% avg
- Clear Aperture Central 85% diameter
- Temperature Range: -50˚C to +80˚C
- Laser Damage Threshold: ≥0.5 J/cm2 (10 ns)
Item # | Dimensions | Wavelength(s) | Clear Aperture |
---|---|---|---|
1200-1700 | |||
900-1250 | |||
650-950 | |||
405-700 |