Material | Single crystal quartz |
Optical axis | Normal to faces S1, S2 of rotator |
Clear aperture | Ø 17 mm |
Ring mount outer diameter, D | 25.4 mm + 0.0/-0.2 mm |
Surface quality | 20-10 scratch & dig (MIL-PRF-13830B) |
Wavefront distortion | λ/10@633 nm |
Parallelism | < 10 arcsec |
AR coating | R < 0.5% |
Laser damage threshold | 100 mJ/cm2, 50 fsec pulse, 800 nm typical |
EKSMA Optics Femtoline Polarization Plane Rotators
64.84 kB |
As compared to waveplate, a rotator has an intrinsic advantage, being independent of rotation around its own optical axis. It needs no adjustment, only to be installed normal to the incident radiation. A polarization plane rotator is normally used for the specific wavelength. It is only slightly dependent on ambient temperature.