Material | Single crystal quartz |
Optical axis | Normal to faces S1, S2 of rotator |
Clear aperture | 17 mm for 20 mm diameter |
Ring mount outer diameter, D | 25.4 mm + 0.0/-0.2 mm |
Mount thickness | T = 6-20 mm, (depends on wavelength and rotation angle) |
Clear aperture | 85% of the diameter |
Surface quality | 20-10 scratch & dig |
Wavefront distortion | λ/10 |
Parallelism | < 10 arcsec |
AR coating | R < 0.2% both sides |
Laser damage threshold | 5J/cm2, 10 nsec, 1064 nm typical |
EKSMA Optics Nd:YAG Polarization Plane Rotators
65.79 kB |
As compared to a waveplate, a rotator has an intrinsic advantage of 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.