Wavelength range
343 – 1064 nm
Surface quality, S-D
20-10
Transmitted wavefront distortion, P-V
<λ/8 @ 632.8 nm
Polarization rotation
45° or 90°
Rotation accuracy
<3 arcmin
AR coatings
Ravg<0.2% on
each surface
LIDT
>10 J/cm² @ 1064 nm, 10 ns, 10 Hz
Mounting
Black anodized
metal mount
Polarization Rotators rotate polarization at a fixed angle and represent a good alternative to retardation waveplates for narrow-waveband lasers.
The rotation of polarization is caused by a property called optical activity, which is natural to quartz crystal and other enantiomorphous materials. There are “right-handed” and “left-handed” quartz that rotates the polarization clockwise or counterclockwise, respectively.
As the rotators are c-cut, the rotation of polarization occurs independently of the component’s rotation around the optical axis, thus component is alignment-insensitive and the only requirement is that the incident beam must be perpendicular to rotator’s aperture.
Altechna offers rotators with fixed polarization rotation angles of 45° or 90°, including antireflection coatings for the designed wavelength. For more convenient use, all rotators are mounted in black anodized aluminum mounts.
Features:
Contact us for more information: [email protected]
| Clear aperture, mm | Designed wavelength, nm | Polarization rotation (clockwise), ° | Thickness with mount, mm | Product ID |
|---|---|---|---|---|
| >18 | 355 | 45 | 6 | 2-CPR-18-45-355 |
| 90 | 6 | 2-CPR-18-90-355 | ||
| >18 | 532 | 45 | 6 | 2-CPR-18-45-532 |
| 90 | 8 | 2-CPR-18-90-532 | ||
| >18 | 1064 | 45 | 12 | 2-CPR-18-45-1064 |
| 90 | 20 | 2-CPR-18-90-1064 |
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